Discovery Semiconductors Programmable Linear InGaAs Balanced Optical Receiver Lab Buddy with Automatic Gain Control up to 56 Gbaud


Ewing, NJ - August, 2021

The DSC-R422 is a Linear AGC Balanced Photoreceiver suited for a variety of analog and digital applications, including coherent and direct detection systems. The R422 offers a variety of characteristics such as RF gain, output amplitude, and mode of operation (AGC or manual gain control). The R422 offers up to 33 GHz bandwidth, gain up to 2800 V/W, low power dissipation and a peak detect function.

DSC-R422 33 GHz Linear AGC Balanced Optical Receiver

Fig1: DSC-R422 Lab Buddy instrument.

  • ✔ Two modes of operation: AGC or manual gain control
  • ✔ Differential Conversion gain up to 2800 V/W
  • ✔ Operating wavelength from 1000 nm to 1650 nm
  • ✔ Maximum differential RF output > 500 mVpp
  • ✔ Continuous DC photocurrent readout from nA to mA range
  • ✔ Low optical PDL (0.05 dB typical)

The DSC-R422 is available in Discovery’s computer-controlled Lab Buddy instrument, where several critical parameters can be controlled and monitored locally or remotely using Standard Commands for Programmable Instruments (SCPI) compatible commands via standard RS232C-over-USB interface. The DC photocurrents of both photodiodes can be monitored simultaneously over a nano-ampere (nA) to milli-ampere (mA) range on the Lab Buddy’s digital display or via a custom GUI provided by Discovery. Additionally, the GUI can be used to control different functions of the DSC-R422 Lab Buddy.
DSC-R422 is available in a standalone Lab Buddy, or as a line card in our Configurable Lab Buddy platform.

  • Ideal for Engineering design verification and production testing
  • Digital coherent systems, including DP-QPSK and 16QAM, up to 56 Gbaud
  • Coherent PON
  • Direct detection for DPSK and DQPSK
  • Analog and RF photonics applications to 33 GHz
  • Free space communications links

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Discovery Semiconductors is an industry leader in manufacturing ultrafast, high optical power handling InGaAs photodiodes, radio frequency over fiber optical receivers, balanced optical receivers and several other custom products for applications ranging from analog RF links to ultrafast digital communications.

For additional information, including complete product specifications, operational capabilities and pricing, or to discuss your application in detail, please call Discovery at: (609) 434-1311 or fax: (609) 434-1317.

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