Create an Account  |   Log In

View All »Matching Part Numbers


Your Shopping Cart is Empty
         

Calibrated Integrating Spheres


  • Insensitive to Beam Shape, Input Angle, and Polarization
  • Includes SM1-Threaded Adapter for Fiber-Coupled Input
  • NIST- or PTB-Traceable Calibration

S142C

350 - 1100 nm
(Post Not Included)

S144C

800 - 1700 nm
(Post Not Included)

Application Idea

PM100D Power Meter Console and S140C Integrating Sphere Shown with Included FC/PC and FC/APC Adapter (Post, Post Holder, and Base Not Included)

S140C

PM100D

S180C

2.9 - 5.5 µm
(Post Not Included)

Related Items


Please Wait

Compatible Power Meter Consoles

PM100D: Handheld Power and Energy Meter Console with a Large Liquid Crystal Display
PM100A: Handheld Power Meter Console with an Analog Needle and Small Digital Display
PM100USB: USB Computer Interface for Power Sensors, No Display
PM400: Touchscreen Power and Energy Meter Console with Color Display and Multi-Touch
PM320E: Dual Channel Digital Benchtop Power Meter Console with a Large LCD Display

See the Console Selection tab for more information on compatible console options. These sensors may also be used with our previous generation PM200 console.

Features

  • For Measurements Independent of Beam Shape and Entrance Angle
  • Integrating Sphere Design Acts as a Diffuser with Minimal Power Loss
  • Ø5 mm, Ø7 mm, or Ø12 mm Input Aperture
  • Individually Calibrated with NIST- or PTB-Traceable Certificate of Calibration
  • Over-Temperature Alert Sensor
  • Removable S120-FC Fiber Adapter (FC/PC and FC/APC) Included
  • Additional Fiber Adapters Available Separately (See Below)
  • C-Series Connector Design for Quick Sensor Connection
  • Recalibration Services Available

Integrating spheres are designed to provide precise optical power measurements independent of beam shape, entrance angle, and polarization. These photodiode sensors have a faster response time than thermal sensor heads while also offering a high damage threshold. These integrating spheres feature enhanced shielding to avoid electromagnetic interference and an over-temperature alert sensor to warn against damage and measurement errors due to overheating of the sensor.

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 integrating sphere housing has separate 8-32 and M4 taps that can be used to mount the sensor on a standard Ø1/2" post (not included).

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 sphere housing has one universal 8-32 and M4 tap that can be used to mount the sensor on a standard Ø1/2" post (not included).

Each integrating sphere includes an adapter with external SM1 (1.035"-40) threads as well as an S120-FC fiber adapter for compatibility with FC/PC- and FC/APC-terminated patch cables, supporting easy integration with both free-space and fiber-coupled setups. Additional fiber adapters for other connector types are available separately below. The externally SM1-threaded adapter can be removed using a size 1 screwdriver to place components closer to the window. 

Compatibility and Calibration
These integrating spheres have C-Series connectors for compatibility with Thorlabs' line of power meter consoles; compatible consoles are outlined in the box above and details are provided on the Console Selection tab. Each sensor head is individually calibrated and 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. The calibration data and sensor identification information is stored in the red connector and read out automatically when the sensor is connected to a compatible Thorlabs power meter console.

Thorlabs also offers power sensor heads in a wide range of other formats as well as complete power meters that combine a sensor head and power meter electronics in a compact package. Our complete line of sensor heads, power meter consoles, and complete power meters is available here.

Recalibration Services
Thorlabs offers recalibration services for our integrating sphere power sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. To order this service, scroll to the bottom of the page and select the appropriate Item # that corresponds to your sensor.

Item # S140C S142C S144C S145C S146C S148C S180C
Technical Specs
Detector Type Silicon Photodiode InGaAs Photodiode MCT (HgCdTe)
Photodiode
Wavelength Range 350 nm - 1100 nm 800 nm - 1700 nm 900 nm - 1650 nm 1200 - 2500 nm 2.9 µm - 5.5 µm
Optical 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
Max Average
Power Density
1 kW/cm² 2 kW/cm² 1 kW/cm² 2 kW/cm² 1 kW/cm²
Max Pulse
Energy Density
1 J/cm² 7 J/cm² 1 J/cm² 7 J/cm² 1 J/cm²
Linearity ±0.5%
Resolutiona 1 nW 1 nW 10 nW 1 nW 10 nW
Measurement
Uncertaintyb
±3% (440 - 980 nm)
±5% (350 - 439 nm)
±7% (981 - 1100 nm)
±5%
Responsivityc
(Click for Plot)

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data

Raw Data
General Information
Typical Application Low-Power Lasers /
Fiber Lasers
Low- and Mid-Power Lasers /
Fiber Lasers
Low-Power Lasers /
Fiber Lasers
Low- and Mid-Power Lasers / Fiber Lasers
Laser Types Diode, He-Cd, ArIo, KrIo,Dye, Ti-Sapphire, LEDs QCL, ICL, HeNe,
CO, Er:YAG,
Co2+:ZnS
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)
Cooling Convection
Head Temperature
Measurement
NTC Thermistor, 4.7 kΩ
Console Compatibilityd PM100D, PM100A, PM100USBPM400, and PM320E
Response Time <1 µs
Mechanical Specs
Housing Dimensions Ø45.0 mm x 30.5 mm
(Ø1.77" x 1.20")
70.0 mm x 74.0 mm x
70.0 mm
(2.76" x 2.91" x 2.76")
Ø45.0 mm x 30.5 mm
(Ø1.77" x 1.20")
70.0 mm x 74.0 mm x 70.0 mm
(2.76" x 2.91" x 2.76")
Ø45.0 mm x 30.5 mm
(Ø1.77" x 1.20")
59.0 mm x 50.0 mm x
28.5 mm
Active Sensor Area 3.6 mm x 3.6 mm 3.6 mm x 3.6 mm 3.6 mm x 3.6 mm Ø2 mm Ø1 mm Ø1 mm 1 mm x 1 mm
Sensor Aperture Ø5 mm Ø12 mm Ø5 mm Ø12 mm Ø12 mm Ø5 mm Ø7 mm
Cable Length 1.5 m
Connector Male 9-Pin D-Sub
Weight 0.2 kg 0.6 kg 0.2 kg 0.6 kg0.6 kg 0.2 kg 0.25 kg
Mounting and Accessories
Mounting Thread Separate 8-32 and M4 Taps, Posts Not Included Universal 8-32 / M4 Tap, Post Not Included
Aperture Thread Included Adapter with External SM1 (1.035"-40) Thread
Fiber Adapters (Optional) FC (Included), SMA, ST, LC, SC, Bare Fiber
  • Measured with PM100D console in low bandwidth setting.
  • Parallel 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 graph to see the NIST-traceable reference points.
  • These sensors are also compatible with our previous generation PM200 console.

Sensor Connector
D-Type Male

DB9 Male
PinConnection
1 Not Used
2 EEPROM Digital I/O
3 Photodiode Anode and NTC Ground
4 Photodiode Cathode
5 Not Used
6 EEPROM Ground
7 NTC
8 Not Used
9 Not Used

Thorlabs offers a wide selection of power and energy meter consoles, ranging from the touch screen PM400 to the analog PM100A. Key specifications of all of our power meter consoles are presented below to help you decide which device is best for your application. We also offer self-contained wireless power meters.

When used with our C-series sensors, Thorlabs' power meter consoles recognize the type of connected sensor and measure the current or voltage as appropriate. Our C-series sensors have responsivity calibration data stored in their connectors. The console will read out the responsivity value for the user-entered wavelength and calculate a power or energy reading.

  • Photodiode sensors deliver a current that depends on the input optical power and the wavelength. The current is fed into a transimpedance amplifier, which outputs a voltage proportional to the input current. The photodiode's responsivity is wavelength dependent, so the correct wavelength must be entered into the console for an accurate power reading. The console reads out the responsivity for this wavelength from the connected sensor and calculates the optical power from the measured photocurrent.
  • Thermal sensors deliver a voltage proportional to the input optical power. Based on the measured sensor output voltage and the sensor's responsivity, the console will calculate the incident optical power.
  • Energy sensors are based on the pyroelectric effect. They deliver a voltage peak proportional to the pulse energy. If an energy sensor is recognized, the console will use a peak voltage detector and the pulse energy will be calculated from the sensor's responsivity.

The sensors are also capable of displaying the current or voltage delivered by the sensor. Alternatively, a current or voltage equivalent to the measured value is provided at the analog output.

Item # PM100A PM100D PM100USB PM400 PM320E
(Click Photo to Enlarge) PM100A PM100D PM100USB PM400 PM320E
Description Analog Power Meter Console Digital Power and Energy Meter Console USB Power and Energy Meter Interface Touchscreen Power and Energy Meter Console with Multi-Touch Dual-Channel Benchtop Power and Energy Meter Console
Compatible Sensors Photodiode and Thermal Photodiode, Thermal, and Pyroelectric
Housing Dimensions
(H x W x D)
7.24" x 4.29" x 1.61"
(184 mm x 109 mm x 41 mm)
7.09" x 4.13" x 1.50"
(180 mm x 105 mm x 38 mm)
3.67" x 2.38 " x 1.13"
(93.1 mm x 60.4 mm x 28.7 mm)
5.35" x 3.78" x 1.16"
(136.0 mm x 96.0 mm x 29.5 mm)
4.8" x 8.7" x 12.8"
(122 mm x 220 mm x 325 mm)
Channels 1 2
External Temperature Sensor Input
(Sensor not Included)
- - - Instantaneous Readout and Record Temperature Over Time -
External Humidity Sensor Input (Sensor not Included) - - - Instantaneous Readout and  Record Humidity Over Time -
GPIO Ports - 4, Programmable -
Source Spectral Correction - - - Yes! -
Attenuation Correction - - - Yes! -
External Trigger Input - - - -  yes
Display
Type Mechanical Needle and LCD Display with Digital Readout 320 x 240 Pixel Backlit Graphical LCD Display No Built-In Display
Controlled via GUI for PC
Protected Capacitive Touchscreen with Color Display 240 x 128 Pixels
Graphical LCD Display
Dimensions Digital: 1.9" x 0.5"
(48.2 mm x 13.2 mm)
Analog: 3.54" x 1.65"
(90.0 mm x 42.0 mm)
3.17" x 2.36"
(81.4 mm x 61.0 mm)
- 3.7" x 2.1"
(95 mm x 54 mm)
3.7" x 2.4"
(94.0 mm x 61.0 mm)
Refresh Rate 20 Hz Dependent on PC and Settingsa 10 Hz (Numerical)
25 Hz (Analog Simulation)
20 Hz
Measurement Viewsb
Numerical yes yes Requires PCc yes
Mechanical Analog Needle yes - - - -
Simulated Analog Needle - yes Requires PCc Yes! yes
Bar Graph - yes Requires PCc Yes! yes
Trend Graph - yes Requires PCc Yes! Yes!
Histogram - yes Requires PCc - Yes!
Statistics Yes! yes Requires PCc Yes! yes
Memory
Type - SD Card - NAND Flash -
Size - 2 GB - 4 GB -
Power
Battery LiPo 3.7 V 1300 mAh - LiPo 3.7 V 2600 mAh -
External 5 VDC via USB or Included AC Adapter 5 VDC via USB 5 VDC via USB Selectable Line Voltage: 100 V, 115 V, 230 V (±10%)
  • Up to 300 Hz. The refresh rate is limited by the PC used to operate the PM100USB power meter interface, as it does not have a built in display.
  • These are the measurement views built into the unit. All of our power meter consoles except the PM320E can be controlled using the Optical Power Monitor software package. The PM320E has its own software package.
  • The PM100USB power meter interface does not have a built-in monitor, so all data must be displayed through a PC running the Optical Power Meter Software.

Posted Comments:
jvigroux  (posted 2012-09-18 03:54:00.0)
A response form Julien at Thorlabs: Thank you for your feedback! we can offer such integrating sphere on request. We do not offer it as a standard product yet because the calibration is only made up to 1.8µm plus one extra point at 2µm. For the rest of the range, we fit the theoretical curve of the sensitivity onto the calibrated part in order to extrapolate the responsivity above 2µm.
simon.gross  (posted 2012-09-14 22:42:18.0)
Why don't you guys equip an integrated sphere with and extended InGaAs sensor for the 2 um wavelength range? This would be a very useful power meter, as it is significantly more sensitive than thermal detectors and won't pick up any thermal radiation. Cheers
Handheld Power Meter with iPad
Click to Enlarge

The PM160 wireless power meter, shown here with an iPad mini (not included), can be remotely operated using Apple mobile devices.

This tab outlines the full selection of Thorlabs' Power and Energy Sensors. Our photodiode and thermal sensors are compatible with all of Thorlabs' current line of power meter consoles, while our pyroelectric sensors are compatible with all of our current power meter consoles except for the PM100A Analog Power Meter Console. In addition to the power and energy sensors listed below, Thorlabs also offers all-in-one, wireless, handheld power meters and compact USB power meter interfaces that contain either a photodiode or a thermal sensor, as well as power meter bundles that include a console, sensor head, and post mounting accessories.

Thorlabs offers three types of sensors:

  • Photodiode Sensors: These sensors are designed for power measurements of monochromatic or near-monochromatic sources, as they have a wavelength dependent responsivity. These sensors deliver a current that depends on the input optical power and the wavelength. The current is fed into a transimpedance amplifier, which outputs a voltage proportional to the input current.
  • Thermal Sensors:  Constructed from material with a relatively flat response function across a wide range of wavelengths, these thermopile sensors are suitable for power measurements of broadband sources such as LEDs and SLDs. Thermal sensors deliver a voltage proportional to the input optical power.
  • Pyroelectric Energy Sensors: Our pyroelectric sensors produce an output voltage through the pyroelectric effect and are suitable for measuring pulsed sources, with a repetition rate limited by the time constant of the detector. These sensors will output a peak voltage proportional to the incident pulse energy.

Power and Energy Sensor Selection Guide

There are two options for comparing the specifications of our Power and Energy Sensors. The expandable table below sorts our sensors by type (e.g., photodiode, thermal, or pyroelectric) and provides key specifications.

Alternatively, the selection guide graphic further below arranges our entire selection of photodiode and thermal power sensors by wavelength (left) or optical power range (right). Each box contains the item # and specified range of the sensor. These graphs allow for easy identification of the sensor heads available for a specific wavelength or power range. 

Photodiode Power Sensors
Thermal Power Sensors
Pyroelectric Power Sensors (Not Compatible with PM100A)
  • The response time of the photodiode sensor. The actual response time of a power meter using these sensors will be limited by the update rate of your power meter console.
  • Typical natural response time (0 - 95%). Our power consoles can provide estimated measurements of optical power on an accelerated time scale (typically <1 s) when the natual response time is approximately 1 s or greater. As the natural response times of the S415C, S425C, and S425C-L are fast, these do not benefit from accelerated measurements and this function cannot be enabled. For more information, see the Operation tab here.
  • With intermittent use: maximum exposure time of 20 minutes for the S401C, otherwise maximum exposure time is 2 minutes.
  • All pyroelectric sensors have a 20 ms thermal time constant, τ. This value indicates how long it takes the sensor to recover from a single pulse. To detect the correct energy levels, pulses must be shorter than 0.1τ and the repetition rate of your source must be well below 1/τ.

Sensor Options
(Arranged by Wavelength Range)

Sensor Options
(Arranged by Power Range)

Integrating Sphere Power Sensors

Item #a,b Detector
Type
Wavelength
Range
Optical Power
Range
Max Average
Power Density
Max Pulse
Energy Density
Resolution Integrating Sphere
Material (Size)
Input
Aperture
S140C Silicon
Photodiode
350 nm - 1100 nm 1 µW - 500 mW 1 kW/cm² 1 J/cm² 1 nW Zenith® PTFE (Ø1") Ø5 mm
S142C 350 nm - 1100 nm 1 µW - 5 W 2 kW/cm² 7 J/cm² 1 nW Zenith® PTFE (Ø2") Ø12 mm
S144C InGaAs
Photodiode
800 nm - 1700 nm 1 µW - 500 mW 1 kW/cm² 1 J/cm² 1 nW Zenith® PTFE (Ø1") Ø5 mm
S145C 800 nm - 1700 nm 1 µW - 3 W 2 kW/cm² 7 J/cm² 1 nW Zenith® PTFE (Ø2") Ø12 mm
S146C 900 nm - 1650 nm 10 µW - 20 W 2 kW/cm² 7 J/cm² 10 nW Zenith® PTFE (Ø2") Ø12 mm
S148C 1200 nm - 2500 nm 1 µW - 1 W 1 kW/cm² 1 J/cm² 1 nW Zenith® PTFE (Ø1") Ø5 mm
S180C MCT (HgCdTe)
Photodiode
2.9 µm - 5.5 µm 1 µW - 3 W 1 kW/cm² 1 J/cm² 10 nW Gold Plating
(Two Ø20 mm Spheres)
Ø7 mm
  • For complete specifications, see the Specs tab.
  • Thorlabs offers a recalibration service for these integrating sphere power sensors, which can be ordered below.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S140C Support Documentation
S140CIntegrating Sphere Photodiode Power Sensor, Si, 350 - 1100 nm, 500 mW
$723.86
Today
S142C Support Documentation
S142CIntegrating Sphere Photodiode Power Sensor, Si, 350 - 1100 nm, 5 W
$1,004.37
Today
S144C Support Documentation
S144CIntegrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 500 mW
$849.94
Today
S145C Support Documentation
S145CIntegrating Sphere Photodiode Power Sensor, InGaAs, 800 - 1700 nm, 3 W
$1,043.25
Today
S146C Support Documentation
S146CIntegrating Sphere Photodiode Power Sensor, InGaAs, 900 - 1650 nm, 20 W
$1,043.25
Today
S148C Support Documentation
S148CCustomer Inspired! Integrating Sphere Photodiode Power Sensor, InGaAs, 1200 - 2500 nm, 1 W
$873.05
Today
S180C Support Documentation
S180CIntegrating Sphere Photodiode Power Sensor, MCT (HgCdTe), 2.9 - 5.5 µm, 3 W
$3,795.82
Today

Compatible Fiber Adapters

Item # S120-FC S120-APCa S120-SMA S120-ST S120-SC S120-LC S140-BFA
Adapter Image
(Click Image
to Enlarge)
FC/PC Fiber Adapter FC/APC Fiber Adapter SMA Fiber Adapter ST Fiber Adapter SC/PC Fiber Adapter LC Fiber Adapter Bare Fiber Adapter
Fiber Termination FC/PCb,c FC/APCc SMA ST/PC SC/PCd LC/PC Bare Fiber with Ø250
to Ø450 µm Buffere
Thread / Screws Internal SM1 (1.035"-40) Thread Two M2.5 x 4 Screwsf
  • The S120-APC is designed with a 4° mechanical angle to compensate for the refraction angle of the output beam.
  • One S120-FC adapter is included with each integrating sphere. Since the integrating spheres are insensitive to the incident angle of light entering the sensor head, this adapter can also be used with FC/APC-terminated patch cables.
  • This connector uses a wide key (2.2 mm).
  • In certain angle-independent applications, this adapter may also be used with SC/APC connectors.
  • Designed to secure a fiber between the V-groove and magnetic clip.
  • To install a S140-BFA on one of these integrating sphere sensors, first remove the included externally SM1-threaded adapter from the sensor housing's input aperture. Then use the two M2.5 taps on the housing to secure the S140-BFA adapter.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
S120-FC Support Documentation
S120-FCFC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$40.97
Today
S120-APC Support Documentation
S120-APCCustomer Inspired! FC/APC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$32.00
Today
S120-SMA Support Documentation
S120-SMASMA Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$40.97
Today
S120-ST Support Documentation
S120-STST/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$40.97
Today
S120-SC Support Documentation
S120-SCSC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$51.48
Today
S120-LC Support Documentation
S120-LCLC/PC Fiber Adapter Cap with Internal SM1 (1.035"-40) Threads
$51.48
Today
S140-BFA Support Documentation
S140-BFABare Fiber Adapter for Calibrated Integrating Sphere Power Sensors
$133.43
Today

Recalibration Service for Integrating Sphere Power Sensors

Calibration Service Item # Compatible Power Meter Sensors
CAL1 S120VC, S120C, S121C, S170C, S140C, S142C, S150C, S151C
CAL2 S122C, S144C, S145C, S146C, S154C, S155C
CAL4 S148C, S180C

Thorlabs offers recalibration services for our photodiode power sensors, including our integrating sphere power sensors. To ensure accurate measurements, we recommend recalibrating the sensors annually. Recalibration of the console is included with the recalibration of a sensor at no additional cost. If you wish to recalibrate only your power meter console, please contact Tech Support for details.

Please enter the Part # and Serial # of the product that requires calibration prior to selecting Add to Cart.

Please Note: To ensure your item being returned for calibration is routed appropriately once it arrives at our facility, please do not ship it prior to being provided an RMA Number and return instructions by a member of our team.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
CAL1 Support Documentation
CAL1Recalibration Service for Si Power Meter Sensors Except S130 Series
Part Number:  Serial Number:
$148.13
Lead Time
CAL2 Support Documentation
CAL2Recalibration Service for Ge & InGaAs Power Meter Sensors Except S132 Series and S148C
Part Number:  Serial Number:
$167.05
Lead Time
CAL4 Support Documentation
CAL4Recalibration Service for MCT and Extended InGaAs Mid-IR Power Sensors (S148C and S180C)
Part Number:  Serial Number:
$298.37
Lead Time
Log In  |   My Account  |   Contact Us  |   Careers  |   Privacy Policy  |   Home  |   FAQ  |   Site Index
Regional Websites: West Coast US | Europe | Asia | China | Japan
Copyright 1999-2019 Thorlabs, Inc.
Sales: 1-973-300-3000
Technical Support: 1-973-300-3000


High Quality Thorlabs Logo 1000px:Save this Image