DH-PbS-Te

The DH_PBS_TE cooled lead-sulfide photodiode offers high reactivity at 3 µm and the convenience of thermoelectric cooling. 

The DH_PBS_TE, which contains a 3x3mm active surface lead sulfide photodiode, operates in photoconductor mode with a voltage of 215, while temperature control is provided by the CPS1M. Using an optically chopped input, the signal generated by this detector is best measured using the 477 trans-impedance preamplifier followed by the 496 DSP lock-in amplifier.