Fiber-Optic Receiver, Adjustable, 300-1050 nm Silicon Detector, 10 MHz, M4 Thread

The silicon models (2051) provide wavelength coverage from 300-1050 nm, and InGaAs models (2053) provide coverage from 900-1700 nm. These detectors are available in the free space design as well as the fiber receptable design. 

In response to customer requests, we’ve extended the bandwidth of our popular 200 kHz photoreceivers to 10 MHz to provide faster photodetection for our customers. The output can be connected to a 1-MΩ oscilloscope input. 

Variable gain of up to 90 dB in 10-dB steps gives you a useful input range from 1 pW to 10 mW. For small signals requiring 80-dB or greater gain, the maximum bandwidth is reduced from 10 MHz to 1 MHz.

The DC÷30 setting prevents your signal from going off-scale due to DC amplitude fluctuations, without attenuating fast signals. The high-pass filter can be adjusted to eliminate residual 60-Hz noise, and the independent low-pass filter can be set to dampen noisy signals.

The flexibility and high performance of these photoreceivers means that they can be used in a wide range of applications. Use them as low-noise DC-coupled photoreceivers/preamplifiers in servo-control systems requiring near-zero phase shifts. Or use them in lock-in amplifier systems to take advantage of their shot-noise-limited performance and 90-dB maximum gain.