DH_IGA-EX-3_TE Photodiode (900-2550nm)

  • DH_IGA-EX_TE thermo-electrically cooled detector 900-1900nm

Housing a 3mm diameter active area extended InGaAs photodiode (900-2550nm), the DH_IGA is operated in the photovoltaic mode. Using an optically chopped input, the signal generated by this detector is best measured in using the 477 trans-impedance pre-amplifier followed by the 496 DSP lock-in amplifier.

The mounting flange supplied with the DH_IGA-EX-3_TE is compatible with the entire range of Bentham monochromators and accessories. A quick-change variant is also available. Options include extended variants and a lens solution to maximise coupling from monochromator.

 

Core benefits

Features

  • Housed extended InGaAs photodiode
  • 3mm diameter active area
  • Typically operated in AC mode
  • Compatible with Bentham's entire range of monochromators and accessories
  • Suitable for free standing applications
  • Recommended for use with 400 series detection electronics

Electro-optical

Material

Indium Gallium Arsenide

Active area

3mm diameter

Spectral response range

900-2550nm

Operating mode

Photovoltaic

Dark current (typ.)

<2uA

Shunt resistance (typ.)

28kΩ

Peak wavelength (typ.)

2.3µm

Peak responsivity (typ.)

1.3 A.W-1

NEP

6 x 10-13 W.Hz-1/2

Max. photocurrent

2mA

Max. operating temperature

-40 to 70°C (diode only)

Mechanical

Connector

BNC

Compatibility

4 x M3 clearance holes (Bentham slit pattern)

Dimensions

 

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