TP9-BL

Temperature-controlled pyroelectric detector for laser power measurement from nW to 0.5 mW.

Product family 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 

Compatible stand

Compatible displays & PC interfaces

Related products

  • SDC-500 SDC-500

    Digital optical chopper.

  • TP5-BL TP5-BL

    Temperature-controlled pyroelectric detector for laser power measurement from nW to 0.5 mW.

Measurement capabilities

  • Maximum average power (continuous)

    500 μW
  • Noise equivalent power1

    5 nW
  • Spectral range2

    0.25 - 15 μm
  • Typical rise time

    0.2 s
  • Power calibration uncertainty

    ±2.5 %
  • Chopper frequency3

    10 Hz, 50% duty cycle
  • Temperature stability

    ± 0.05°C
  • Voltage response stability

    ± 0.01%
    • 1. With STEP-Controller and scope. Noise is < 11 nW RMS with STEP-controller and Lock-In.
    • 2. NIST-traceable calibration at 632.8 nm.
    • 3. SDC-500 digital optical chopper sold separately

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

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.

Customers enjoy:

  • Can be used with broadband light sources
  • Wide dynamic range
  • Very low noise

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