Click to Enlarge
S120C and CP44F Quick-Release Mount

• o For General Purpose Optical Power Measurements
• o Integrated Viewing Target for Easy Sensor Alignment
• o Ø9.5 mm Sensor Aperture
• o Fiber Adapters Available Separately (See Table Below)
• o Sensor, Protective Cap, and IR Target Included

The S12xC Standard Photodiode Power Sensors are ideal for metering low power coherent and incoherent sources from the UV to the NIR. These sensors feature an integrated viewing target for easy alignment, enhanced shielding against electromagnetic interference, over temperature alert device, and large Ø9.5 mm sensor aperture. The sensors are compatible with  Ø1/2" posts and SM1 (1.035"-40) lens tubes and are ideal for free-space and fiber-coupled sources. They may also be mounted in 30 mm cage systems using our selection of 30 mm Cage System Optic Mounts with internal SM1 threading.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-UVPD for UV-extended Si sensors, Item # CAL-PD for Si sensors and Item # CAL-IRPD for Ge sensors).

Item #a	S120VC	S120C	S121C	S122Cb,i
Sensor Image (Click the Image to Enlarge)
Aperture Size	Ø9.5 mm
Wavelength Range	200 - 1100 nm	400 - 1100 nm	400 - 1100 nm	700 - 1800 nm
Power Range	50 nW - 50 mW		500 nW - 500 mW	50 nW - 40 mW
Detector Type	Si Photodiode (UV Extended)	Si Photodiode		Ge Photodiode
Linearity	±0.5%
Resolutionc	1 nW		10 nW	2 nW
Measurement Uncertaintyd	±3% (440 - 980 nm) ±5% (280 - 439 nm) ±7% (200 - 279 nm, 981 - 1100 nm)	±3% (440 - 980 nm) ±5% (400 - 439 nm) ±7% (981 - 1100 nm)		±5%
Responsivitye (Click for Plot)	Raw Data	Raw Data	Raw Data	Raw Data
Coating/Diffuser	Reflective ND (OD1.5)f	Reflective ND (OD1)g	Reflective ND (OD2)h	Absorptive ND (Schott NG9)
Head Temperature Measurement	NTC Thermistor 4.7 kΩ
Housing Dimensions	Ø30.5 mm x 12.7 mm
Active Detector Area	9.7 mm x 9.7 mm
Cable Length	1.5 m
Mounting Threadf,g,h	Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread	External SM1 (1.035"-40)
Fiber Adapters	S120-FC, S120-APC, S120-SMA, S120-ST, S120-LC, and S120-SC (Not Included)
Compatible Consoles	PM400, PM100D, and PM100A
Compatible Interfaces	PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103U, and PM100USB

• For complete specifications, please see the Specs tab.
• The minimum measurable power for Germanium photodiodes can vary due to large fluctuations in the sensor's dark current, which is dependent on wavelength and temperature. This is particularly true at the edges of the sensor's operating range where the responsivity is lower. The S122C also includes an ND filter with high attenuation from 700 nm to 900 nm in front of the sensor. This will also affect the measurable minimum power in that wavelength range.
• Measured with PM100D console in low bandwidth setting.
• Beam diameter > 1 mm.
• All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
• For the S120VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
• For the S120C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG3). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
• For the S121C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). Additionally, they came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.
• Previously, S122C came with an 8-32 tap and M4 adapter. For additional information, please contact technical support.

Click to Enlarge

View Imperial Product List

View Metric Product List

S130C Sensor in a 30 mm Cage

Click for Details
SM1A29 SM1 Thread Adapter
Mounted on a S130C Sensor

Click for Details

View Product List

S130C Photodiode Sensor Mounted in FiberBench System Using FBSM Mount

• o For Optical Power Measurements in Confined Spaces
• o Slim Design: 5 mm Thin on Sensor Side
• o Ø9.5 mm Sensor Aperture
• o Slideable ND Filter Automatically Changes Sensor Power Range
• o Accessories Available Separately Below:
  • SM1A29 Adapter with VIS/IR Target and External SM1 Threading
  • FBSM Mount with VIS/IR Target for FiberBench Systems

The S13xC Slim Photodiode Power Sensors are designed to take optical source power measurements in locations where space and accessibility are at a premium. The 5 mm thin
Slim Photodiode Sensors can fit between closely spaced optics, cage systems, and other arrangements where standard power meters may not fit. These sensors also feature a large Ø9.5 mm sensor aperture and slideable neutral density filter for dual power ranges in one compact device.

A separately available SM1A29 adapter can be attached by 2 setscrews to any S130 series power sensor to mount fiber adapters, light shields, filters or any other SM1-threaded (1.035"-40) mechanics or optics. The FBSM Mount allows our S130 series power sensors to be mounted vertically into FiberBench systems for stable mounting with a minimal footprint.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-UVPD2 for UV-extended Si sensors, Item # CAL-PD2 for Si sensors, and Item # CAL-IRPD2 for Ge sensors).

Item #a	S130VC	S130C	S132Cb
Sensor Image (Click the Image to Enlarge)
Aperture Size	Ø9.5 mm
Wavelength Range	200 - 1100 nm	400 - 1100 nm	700 - 1800 nmc
Power Range (with filter)	500 pW - 0.5 mWd (Up to 50 mW)d	500 pW - 5 mW (Up to 500 mW)	5 nW - 5 mW (Up to 500 mW)
Detector Type	Si Photodiode (UV Extended)	Si Photodiode	Ge Photodiode
Linearity	±0.5%
Resolution	100 pWe		1 nWf
Measurement Uncertaintyg	±3% (440 - 980 nm) ±5% (280 - 439 nm) ±7% (200 - 279 nm, 981 - 1100 nm)	±3% (440 - 980 nm) ±5% (400 - 439 nm) ±7% (981 - 1100 nm)	±5%
Responsivityh (Click for Plot)	Raw Data	Raw Data	Raw Data
Coating/Diffuser	Reflective ND (OD1.5)d	Reflective ND (OD2)i	Absorptive ND (Schott NG9/KG3)c
Housing Dimensions	150 mm x 19 mm x 10 mm; 5 mm Thickness on Sensor Side
Active Detector Area	9.7 mm x 9.7 mm
Cable Length	1.5 m
Mounting Thread	Separate 8-32 and M4 Taps, Posts Not Included
Adapters (Not Included)	SM1A29: Add SM1 Thread and Viewing Target to Aperture Fiber Adapters Compatible with SM1A29 Adapter: S120-FC, S120-APC, S120-SMA, S120-ST, S120-LC, and S120-SC FBSM: Integrate Sensor into FiberBench Setups
Compatible Consoles	PM400, PM100D, and PM100A
Compatible Interfaces	PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103U, and PM100USB

• For complete specifications, please see the Specs tab.
• The minimum measurable power for Germanium photodiodes can vary due to large fluctuations in the sensor's dark current, which is dependent on wavelength and temperature. This is particularly true at the edges of the sensor's operating range where the responsivity is lower.
• For the S132C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had a reflective ND diffuser (OD1), which would decrease the wavelength range from 700 nm to 1800 nm to 1200 nm to 1800 nm. For additional information, please contact technical support.
• For the S130VC, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an optical power range of 5 nW to 5 mW (50 nW to 50 mW with filter) and a reflective ND diffuser (OD1). For additional information, please contact technical support.
• Measured with PM100D console in low bandwidth setting, without filter.
• Measured with PM100D console in low bandwidth setting at 1550 nm, without filter.
• Beam Diameter > 1 mm.
• All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
• For the S130C, these specifications are valid for devices with serial numbers 1203xxx or higher. Older versions had an absorptive ND diffuser (Schott NG9). For additional information, please contact technical support.

Item #a	S116C
Sensor Image (Click the Image to Enlarge)
Aperture Size	Ø6 mm
Wavelength Range	400 - 1100 nm
Power Range	20 nW - 50 mW
Detector Type	Si Photodiode
Linearity	±0.5%
Resolution	1 nWb
Measurement Uncertaintyc	±3% (451 - 1000 nm) ±5% (400 - 450 nm, 1001 - 1100 nm)
Responsivityd (Click for Plot)	Raw Data
Coating/Diffuser	Absorptive ND (NG9)
Housing Dimensions (L x W x T)	70.0 mm x 11.0 mm x 8.9 mm; 10.0 mm Width and 4.5 mm Thickness on Sensor Side
Active Detector Area	7 mm x 7 mm
Cable Length	1.5 m
Mounting Threads	2 Universal 8-32 / M4 Taps (One on the Back, One on the Bottom), Posts Not Included
Adapters (Not Included)	SM05A29: Add SM05 Thread to Aperture Fiber Adapters Compatible with SM05A29 Adapter: PM20-FC2, PM20-FC, PM20-APC2, PM20-APC, PM20-SMA, PM20-ST, PM20-SC, and PM20-LC
Compatible Consoles	PM400, PM100D, and PM100A
Compatible Interfaces	PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103U, and PM100USB

• For complete specifications, please see the Specs tab.
• Measured with PM100D console in low bandwidth setting.
• Beam Diameter > 1 mm.
• The sensor responsivity shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.

SM1A29 is an adapter that can be attached by 2 set screws to any S130 series power sensor. This gives the possibility to mount fiber adapters, light shields, filters or any other SM1 threaded mechanics or optics.

• o For Optical Power Measurements in Tiny Spaces Such as 16 mm Cage Systems
• o Wavelength Range: 400 - 1100 nm
• o Very Slim Design: 10.0 mm Wide and 4.5 mm Thin on Sensor Side
• o Silicon Photodiode with Ø6 mm Sensor Aperture
• o Designed for Power Measurements for Low Power Lasers
• o Post Mountable via 8-32 (M4) Taps
• o SM05A29 Adapter with External SM05 (0.535"-40) Threading Available Separately Below

The S116C Compact Slim Photodiode Power Sensor is designed to take optical source power measurements in locations where space and accessibility are at a premium. The 4.5 mm thin photodiode sensor can fit between the rods of a 16 mm cage system, as seen in the application photo below, as well as through the side openings of our slotted Ø1/2" lens tubes (Item #s SM05L20C and SM05L30C). This sensor also features a Ø6 mm sensor aperture.

A separately available SM05A29 adapter can be attached by two 0.05" (1.3 mm) hex setscrews to an S116C power sensor to mount fiber adapters, light shields, filters or any other SM05-threaded (0.535"-40) mechanics or optics. The adapter mounted on the S116C power sensor is shown below.

Each sensor is shipped with NIST- and PTB-traceable calibration data. The included data is determined with the help of a certified reference diode, which corresponds to the spectral range of the sensor to be calibrated. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors).

Click to Enlarge

View Imperial Product List

View Metric Product List

S116C Sensor in a 16 mm Cage System

Click for Details
SM05A29 SM05 Thread Adapter
(Sold Separately) Mounted on
an S116C Sensor

Item #a	S170C
Sensor Image (Click Image to Enlarge)
Overall Dimensions	76.0 mm x 25.2 mm x 5.0 mm (2.99" x 0.99" x 0.20")
Active Detector Area	18 mm x 18 mm
Input Aperture	20 mm x 20 mm
Wavelength Range	350 - 1100 nm
Optical Power Working Range	10 nW - 150 mW
Detector Type	Silicon Photodiode
Linearity	±0.5%
Resolutionb	1 nW
Calibration Uncertaintyc	±3% (440 - 980 nm) ±5% (350 - 439 nm) ±7% (981 - 1100 nm)
Responsivityd (Click for Plot)	Raw Data
Neutral Density Filter	Reflective (OD 1.5)
Cable Length	1.5 m
Mounting Thread	Universal 8-32 / M4 Tap, Post Not Included
Compatible Consoles	PM400, PM100D, and PM100A
Compatible Interfaces	PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103U, and PM100USB

• For complete specifications, please see the Specs tab.
• Measured with PM100D console in low bandwidth setting.
• Beam diameter > 1 mm.
• The sensor responsivity shown in this plot was calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.

• o Wavelength Range: 350 nm to 1100 nm
• o Sensitive to Optical Powers from 10 nW to 150 mW
• o Designed to Measure Optical Power at the Sample Plane of a Microscope
• o Silicon Photodiode with Large 18 mm x 18 mm Active Area
• o Sensor Housing Dimensions: 76.0 mm x 25.2 x 5.0 mm
• o Index Matching Gel Utilized in Design to Prevent Internal Reflections
• o Information Stored in Connector
  • Sensor Data
  • NIST- and PTB-Traceable Calibration Data
• o Post Mountable via 8-32 (M4) Tap

The S170C Microscope Slide Power Sensor Head is a silicon photodiode sensor designed to measure the power at the sample in microscopy setups. The silicon photodiode can detect wavelengths between 350 nm and 1100 nm at optical powers between 10 nW and 150 mW. The sensor head's 76.0 mm x 25.2 mm footprint matches that of a standard microscope slide and is compatible with most standard upright and inverted microscopes.

The photodiode has an 18 mm x 18 mm active area and is contained in a sealed housing behind a neutral density (ND) filter with OD 1.5. A 20 mm x 20 mm indentation around the surface of the ND filter is sized to accept standard microscope cover slips. An immersion medium (water, glycerol, oil) may be placed in this well directly over the ND filter, or a cover slip may be inserted first to simplify clean up. The gap between the photodiode and the neutral density filter has been filled with an index matching gel in order to prevent internal reflections from causing significant measurement errors when using high NA objectives with oil or water.

The bottom of the sensor housing features a laser-engraved grid to aid in aligning and focusing the beam. In standard microscopes, this grid can be used for beam alignment before flipping the sensor head to face the objective for power measurements. In inverted microscopes, turn on the transmitted illuminator to align the grid on the detector housing with the beam, thereby centering the sensor in front of the objective. Alternatively, the diffusive surface of the ND filter can be used as a focusing plane.

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. Sensor specifications and the included NIST- or PTB-traceable calibration data are stored in non-volatile memory in the sensor connector and can be read out by the latest generation of Thorlabs power meters. We recommend yearly recalibration to ensure accuracy and performance. Calibration may be ordered using the CAL-PD recalibration service available below. Please contact technical support for more information.

The complete set of specifications are presented on the Specs tab above. Thorlabs also offers a Microscope Slide Sensor Head with a thermal sensor; the full presentation can be found here.

Click to Enlarge
S142C and S140-BFA Bare Fiber Adapter (Sold Separately)

Click to Enlarge
S142C with the S120-FC Fiber Adapter (Included)

• o For Measurements Independent of Beam Shape and Entrance Angle
• o Integrating Sphere Design Acts as a Diffuser with Minimal Power Loss
• o Ø5 mm, Ø7 mm, or Ø12 mm Input Sensor Aperture
• o Removable S120-FC Fiber Adapter (FC/PC and FC/APC) Included
• o Compatible Fiber Adapters for Terminated and Bare Fiber (See Table Below)

These Integrating Sphere Photodiode Power Sensors are the ideal choice for power measurements independent of beam uniformity, divergence angle, beam shape, or entrance angle, making them excellent for use with fiber sources and off-axis free space sources.

Our integrating spheres are designed for wavelength ranges from the visible through the NIR. Sensor heads for use between 350 and 2500 nm use a single Ø1" or Ø2" sphere made from Zenith^® PTFE and feature a black housing to minimize reflected light around the entrance aperture. These sensors use either a silicon photodiode for detection in the 350 - 1100 nm range or an InGaAs photodiode for detection in the 800 - 1700 nm, 900 - 1650 nm, or 1200 - 2500 nm wavelength range.

The S180C integrating sphere for 2.9 - 5.5 µm uses two connected, gold-plated Ø20 mm spheres, with an entrance port in the first sphere and a port for the MCT (HgCdTe) detector located in the second sphere. Compared to single-sphere designs, the two-sphere configuration improves device sensitivity by minimizing the internal sphere surface area while still effectively shielding the detector from direct illumination. This design reduces the effect of input angle, divergence, and beam shape on the measurement result by effectively shielding the photodiode without the use of a baffle or other shielding mechanism.

The integrating spheres below feature large Ø5 mm, Ø7 mm, or Ø12 mm apertures, externally SM1-threaded (1.035"-40) front connections, enhanced shielding against electromagnetic interference, and an over-temperature alert sensor. Because of the large active detector areas of these sensors, the included S120-FC fiber adapter can be used with FC/PC- or FC/APC-terminated fiber. The externally SM1-threaded adapter can be removed using a size 1 screwdriver to place components closer to the window. 

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. NIST- or PTB-traceable data is stored in the sensor connector. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors, Item # CAL-IRPD for InGaAs sensors, and Item # CAL-MIRPD for extended InGaAs or MCT sensors).

Item #a	S140C	S142C	S144C	S145C	S146C	S148C	S180C
Sensor Image (Click the Image to Enlarge)
Aperture Size	Ø5 mm	Ø12 mm	Ø5 mm	Ø12 mm		Ø5 mm	Ø7 mm
Wavelength Range	350 - 1100 nm		800 - 1700 nm		900 - 1650 nm	1200 - 2500 nm	2.9 µm - 5.5 µm
Power Range	1 µW - 500 mW	1 µW - 5 W	1 µW - 500 mW	1 µW - 3 W	10 µW - 20 W	1 µW - 1 W	1 µW - 3 W
Detector Type	Si Photodiode		InGaAs Photodiode			Extended InGaAs Photodiode	MCT (HgCdTe) Photodiode
Linearity	±0.5%
Resolutionb	1 nW				10 nW	1 nW	10 nW
Measurement Uncertaintyc	±3% (440 - 980 nm) ±5% (350 - 439 nm) ±7% (981 - 1100 nm)		±5%
Responsivityd (Click for Plot)	Raw Data	Raw Data	Raw Data	Raw Data	Raw Data	Raw Data	Raw Data
Integrating Sphere Material (Size)	Zenith® PTFE (Ø1")	Zenith® PTFE (Ø2")	Zenith® PTFE (Ø1")	Zenith® PTFE (Ø2")		Zenith® PTFE (Ø1")	Gold Plating (Two Ø20 mm Spheres)
Head Temperature Measurement	NTC Thermistor 4.7 kΩ
Housing Dimensions	Ø45 mm x 30.5 mm	70 mm x 74 mm x 70 mm	Ø45 mm x 30.5 mm	70 mm x 74 mm x 70 mm		Ø45 mm x 30.5 mm	59.0 mm x 50.0 mm x 28.5 mm
Active Detector Area	3.6 mm x 3.6 mm			Ø2 mm	Ø1 mm	Ø1 mm	1 mm x 1 mm
Cable Length	1.5 m
Mounting Thread	Separate 8-32 and M4 Taps, Posts Not Included						Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread	Included Adapter with SM1 (1.035"-40) External Thread
Compatible Fiber Adapters	S120-FC (Included) S120-APC, S120-SMA, S120-ST, S120-SC, S120-LC, and S140-BFA (Not Included)
Compatible Consoles	PM400, PM100D, and PM100A
Compatible Interfaces	PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103U, and PM100USB

• For complete specifications, please see the Specs tab.
• Measured with PM100D console in low bandwidth setting.
• Beam diameter > 1 mm
• All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals except for the S180C. See the S180C responsivity plot to see the NIST-traceable reference points

• o Compatible with S140C Series Power Sensors
• o Power Measurements of Bare Fiber Outputs
• o Easy Loading and Positioning of Optical Fiber in V-Groove
• o Supports Fiber with Buffer Diameters from 250 to 450 µm
• o Tight Holding without Fiber Damage by Magnetic Clip
• o Attached by Two M2.5 x 4 mm Cap Screws

Click to Enlarge
PM100D with S150C Sensor and FC Cable

• o For Fiber-Based Optical Power Measurements
• o Compact Sensor Integrated into the Connector
• o Integrated Design for use in the Field and Lab
• o Includes FC/PC Adapter
  • S150C and S151C Sensors also Include SMA Adapter
  • Compatible FC/APC, LC/PC, SC/PC, and ST Fiber Adapters Also Available (See Table Below)
• o Compatible with the PM100D, PM100USB, and PM100A Consoles

The S15xC Compact Fiber Photodiode Power Sensor is designed to take power measurements from a wide variety of fiber-coupled sources. The compact sensor, integrated into the power meter connector, features a unique integrated design housing the photodiode sensor, fiber coupling, and NIST- or PTB-traceable data. The fiber adapter included with each sensor can be interchanged easily to accomodate a variety of fiber connectors (see table below).

Each sensor is shipped with NIST- or PTB-traceable calibration data. The included data will match the calibration certification of the photodiode used to test the individual sensor. NIST- or PTB-traceable data is stored in the sensor connector. Thorlabs offers a recalibration service for these photodiode power sensors, which can be ordered below (see Item # CAL-PD for Si sensors and Item # CAL-IRPD for InGaAs sensors).

Item #a	S150C	S151C	S154C	S155C
Sensor Image (Click the Image to Enlarge)
Wavelength Range	350 - 1100 nm	400 - 1100 nm	800 - 1700 nm
Power Range	100 pW to 5 mW (-70 dBm to +7 dBm)	1 nW to 20 mW (-60 dBm to +13 dBm)	100 pW to 3 mW (-70 dBm to +5 dBm)	1 nW to 20 mW (-60 dBm to +13 dBm)
Detector Type	Si Photodiode		InGaAs Photodiode
Linearity	±0.5%
Resolutionb	10 pW (-80 dBm)	100 pW (-70 dBm)	10 pW (-80 dBm)	100 pW (-70 dBm)
Measurement Uncertaintyc	±3% (440 - 980 nm) ±5% (350 - 439 nm) ±7% (981 - 1100 nm)	±3% (440 - 980 nm) ±5% (400 - 439 nm) ±7% (981 - 1100 nm)	±5%
Responsivityd (Click for Details)	Raw Data	Raw Data	Raw Data	Raw Data
Coating/Diffuser	N/A	Absorptive ND (Schott NG3)	N/A
Head Temperature Measuremente	NTC Thermistor 3 kΩ
Aperture Thread	External SM05 (0.535"-40)
Fiber Adaptersf	Included (FC and SMA): PM20-FC and PM20-SMA; Optional: PM20-APC, PM20-LC, PM20-SC, and PM20-ST		Included (FC): PM20-FC; Optional: PM20-APC, PM20-LC, PM20-SC, PM20-ST, and PM20-SMA
Compatible Consoles	PM400, PM100D, and PM100A
Compatible Interfaces	PM101, PM101A, PM101R, PM101U, PM103, PM103A, PM103U, and PM100USB

• For complete specifications, please see the Specs tab.
• Measured with PM100D console in low bandwidth setting.
• For a beam diameter > 1 mm incident on the active area of the detector (i.e. at the detector surface after the light has exited the fiber and passed through any internal optics).
• All sensor responsivities shown in these plots were calibrated to a NIST-traceable source with measurements taken in 5 nm intervals.
• This specification is valid for devices with serial numbers 1203xxx and higher. For older versions, please contact technical support.
• Because of the large active detector area of these sensors, the included PM20-FC fiber adapter can be used with both FC/PC- and FC/APC-terminated fiber.

These internally SM05-threaded (0.535"-40) adapters mate terminated fiber to our free-space detectors and power sensors, including, but not limited to:

• o S150C Series Fiber Power Meter Sensors (Sold Above)
• o PM160 Series Wireless, Handheld Power Meter
• o PM20 Series Fiber Power Meters

For details on narrow versus wide key connectors, please see our Intro to Fiber tutorial. Please contact Tech Support if you are unsure if the adapter is mechanically compatible.

Part Number	PM20-FC2	PM20-FC	PM20-APC2a	PM20-APCa	PM20-SMA	PM20-ST	PM20-SC	PM20-LC
Adapter Image (Click the Image to Enlarge)
Connector Type	FC/PC, 2.0 mm Narrow Key	FC/PC, 2.2 mm Wide Key	FC/APC, 2.0 mm Narrow Key	FC/APC, 2.2 mm Wide Key	SMA	ST/PC	SC/PCb	LC/PC
Thread	Internal SM05 (0.535"-40)

• The PM20-APC and PM20-APC2 are designed with a 4° mechanical angle to compensate for the refraction angle of the output beam.In certain angle-independent applications, this adapter may also be used with SC/APC connectors.
  

These internally SM1-threaded (1.035"-40) adapters mate terminated fiber to any of our externally SM1-threaded components, including a selection of our photodiode power sensors, our thermal power sensors, and our photodetectors.

The APC adapters have two dimples in the front surface that allow them to be tightened with the SPW909 or SPW801 spanner wrench. The dimples do not go all the way through the disk so that the adapter can be used in light-tight applications when paired with SM1 lens tubes.

For details on narrow versus wide key connectors, please see our Intro to Fiber tutorial. Please contact Tech Support if you are unsure if the adapter is mechanically compatible.

Item #	S120-FC2	S120-FC	S120-APC2a	S120-APCa	S120-SMA	S120-ST	S120-SC	S120-LC
Adapter Image (Click the Image to Enlarge)
Fiber Connector Type	FC/PC, 2.0 mm Narrow Key	FC/PC, 2.2 mm Wide Key	FC/APC, 2.0 mm Narrow Key	FC/APC 2.2 mm Wide Key	SMA	ST/PC	SC/PCb	LC/PC
Thread	Internal SM1 (1.035"-40)

• The S120-APC and S120-APC2 are designed with a 4° mechanical angle to compensate for the refraction angle of the output beam.
• In certain angle-independent applications, this adapter may also be used with SC/APC connectors.
  
  

Click to Enlarge
SM1 Lens Tube Mounted on an S132C Photodiode Sensor Using an SM1A29 Adapter

• o Compatible with Thorlabs Slim Photodiode Power Sensors
• o Enables Integration with SM1-Threaded Components
• o Adds VIS/IR Target Around Sensor

The SM1A29 adapter can be attached to our slim photodiode sensors using two setscrews, which are compatible with 0.035" (0.9 mm) hex keys. This allows for mounting SM1-threaded fiber adapters, filters, or other SM1-threaded mechanics or optics to our slim photodiode sensors. The target around the aperture uses the same material as our VRC2 Laser Viewing Card and is sensitive to light between the wavelength ranges of 400 - 645 nm and 800 - 1700 nm.

Click for Details

View Product List

S130C Photodiode Sensor Mounted in FiberBench System Using FBSM Adapter

• o Compatible with Thorlabs Slim Photodiode Power Sensors
• o Enables Integration with Single- and Multi-Axis FiberBench Systems
• o Adds VIS/IR Target Around Sensor

The FBSM FiberBench Mount enables stable mounting of our slim photodiode sensors into our FiberBench systems. A side-located setscrew with a 0.050" (1.3 mm) hex can be used to lock the sensor in place. The mount has dowel pins for compatibility with FiberBenches and an optical axis height of 0.56" (14.2 mm) to match other FiberBench components. The target around the aperture uses the same material as our VRC2 Laser Viewing Card and is sensitive to light between the wavelength ranges of 400 - 645 nm and 800 - 1700 nm.

Click to Enlarge
P1-630A-FC-1 Fiber with PM20-FC Fiber Adapter Mounted on an S116C Photodiode Sensor Using an SM05A29 Adapter

• o Compatible with Thorlabs' Compact Slim Photodiode Power Sensor
• o Enables Integration with SM05-Threaded Components

The SM05A29 adapter can be attached to our compact slim photodiode sensors using two setscrews, which are compatible with 0.05" (1.3 mm) hex keys. This allows for mounting SM05-threaded fiber adapters, filters, or other SM05-threaded mechanics or optics to our compact slim photodiode sensors.

Thorlabs offers recalibration services for our photodiode optical power sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. Recalibration of a single-channel power and/or energy meter console or interface is included with the recalibration of a sensor at no additional cost.

Refer to the table to the right for the appropriate calibration service Item # that corresponds to your power sensor. Once the appropriate Item # is selected, enter the Part # and Serial # of the sensor that requires recalibration prior to selecting Add to Cart.