Updated:2025-01-15
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Gentec-EO TP9-BL Temperature-controlled pyroelectric detector for laser power measurement from nW to 0.5 mW.
Measure low-power lasers at any wavelength with the BL absorber
The spectrally ultra-flat and broadband coating absorbs a very wide range of wavelengths. The very high absorptivity of our BL absorber guarantees a high sensitivity.
Can be used with broadband light sources
Wide dynamic range
Very low noise
Key Features
Spectrally flat response
These radiometers were developed for NIST, to be used with a broadband spectrometer to act as a spectral transfer standard when calibrating other detectors in the 0.25 to 15 μm range.
Temperature Controlled Power Measurement
Each head is composed of a low noise detector, thermistor, TE cooler and heatsink to compensate for any temperature change
The Ultimate Choice in Measurement Stability
Temperature control down to 0.05°C from 20 to 30°C gives a temperature coefficient <0.01 %, thus a voltage output stable to 0.01 %
2 Sizes Available
TP5-BL: 5 mm Ø pyroelectric sensor with organic black coating
TP9-BL: 9 mm Ø pyroelectric sensor with organic black coating
To be used with the STEP-Controller
Plug your TP sensor into the STEP-Controller for power supply and temperature control. You can then use the analog output with a scope or lock-in
Specifications
Measurement capabilities | |
Maximum average power (continuous) | 500 μW |
Noise equivalent power | 5 nW |
Spectral range | 0.25 - 15 μm |
Typical rise time | 0.2 s |
Power calibration uncertainty | ±2.5 % |
Chopper frequency | 10 Hz, 50% duty cycle |
Temperature stability | ± 0.05°C |
Voltage response stability | ± 0.01% |
Damage thresholds | |
Maximum average power density | 50 mW/cm² |
Physical characteristics | |
Aperture diameter | 9 mm |
Absorber | BL |
Dimensions | 50.8Ø X 48.3D mm |
Weight | 0.227 kg |
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