The 1811-FS InGaAs Optical Receiver is a free space, 900 to 1700 nm photoreceiver offering a well-balanced combination of gain, bandwidth, and low noise over the DC to 125 MHz frequency range. Because of its high transimpedance gain and low noise-equivalent power (NEP), it offers the best in sensitivity for signals with rise and fall times as short as 3 ns. This high sensitivity, combined with its high-level output, reduces the effects of downstream noise sources. For mounting it has a 8-32 mounting thread, and we include an M4 metric adaptor and tool. An external ±15 VDC power supply, which must be purchased separately, is required. Power supply cables
Because of their high transimpedance gain and low noise-equivalent power (NEP), they offer the best in sensitivity for signals with rise and fall times as short as 3 ns. This high sensitivity, combined with their high-level output, reduces the effects of downstream noise sources.
With true DC coupling, these photoreceivers give linear responses to transient signals without artificial ringing, tails, or other anomalies. For applications where you need to measure both the AC modulation and the DC component, choose the DC coupled receiver.
Careful RF shielding and filtering of power-supply inputs eliminate electromagnetic interference, even in laboratories with Q-switched lasers and other noisy equipment.
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