Laser Power Meters

UDT Instruments offers two different systems for laser power measurement based on our S470 flexOptometer and Model 221 silicon sensor.

The uRAD-FL Laser Power Meter bundle combines a broadband silicon sensor with an integrating sphere to provide simple and accurate laser power measurements. The 150mm diameter sphere attenuates the beam to allow measurement of higher-power devices, reducing sensitivity to beam polarization and alignment. The sphere accepts beams of up to 19 mm (0.75″) diameter.

The uRAD-FLD Laser Power Meter bundle combines a broadband silicon sensor with a multilayer diffuser-type laser power attenuator to provide simple and accurate laser power measurements. Maximum beam size is determined by the attenuator’s 7mm diameter aperture.

Both system’s power (radiant flux) calibration is programmed into the benchtop optometer. Measurement results are displayed by the optometer in units of Watts (W), and digital data can be acquired directly via PC. The system can also be configured to support “single-shot” energy measurements of individual laser pulses, in units of Joules (J).

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uRAD-FL Laser Power Meter Components
  • Power MeterModel S470 flexOptometer: Benchtop Power Meter, Single Channel; IEEE-488, RS-232, RS-485, USB
  • Radiant Flux SensorModel 221: Silicon sensor; 1cm2 area; adapted to the Model 2500L sphere for laser power (radiant flux) measurement
  • Integrating SphereModel 2500L: 150 mm (6″) diameter; 19 mm diameter sample port; for collimated or slightly-divergent beams
  • Single-Point Laser Power Calibration – U68072: At specified laser wavelength in range: 350 – 1100nm; NIST Traceable in units of Watts (W)
  • Alternative Power Meter – Model S471: Portable Power Meter with LCD display, RS-232 Interface; 50 programmable cals; AC or Battery power
uRAD-FLD Laser Power Meter Components
  • Power MeterModel S470 flexOptometer: Benchtop Power Meter, Single Channel; IEEE-488, RS-232, RS-485, USB
  • Radiant Flux SensorModel 221: Silicon sensor; 1cm2 area; adapted to the Model 2550 attenuator for laser power (radiant flux) measurement
  • Laser Power Attenuator – Model 2550 optical attenuator: Diffuser type, 3 layers; 7 mm diameter aperture
  • Single-Point Laser Power Calibration – U68072: At specified laser wavelength in range: 350 – 1100nm; NIST Traceable in units of Watts (W)
  • Alternative Power Meter – Model S471: Portable Power Meter with LCD display, RS-232 Interface; 50 programmable cals; AC or Battery power

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