Discovery Semiconductors manufactures photodetectors and balanced photoreceivers for 10 Gb, 40Gb, and 100 Gb applications.

Site Search

Follow Discovery Semiconductors on TwitterFollow Discovery Semiconductors on Twitter

Single and Dual Polarization InGaAs Optical Coherent Receivers for Coherent LADARs (2016)

Shubhashish Datta and Abhay Joshi
Discovery Semiconductors, Inc.
119 Silvia Street
Ewing, NJ 08628, USA
Tel: 609-434-1311, Fax: 609-434-1317


We have manufactured single as well as dual polarization optical coherent receivers that comprise of InGaAs balanced receivers and an optical hybrid. The bandwidth of InGaAs balanced receivers is up to 20 GHz with a wavelength coverage of 1200 nm to 2200 nm. The single polarization coherent receiver contains two balanced receivers and a single polarization 90 degree optical hybrid; whereas the dual polarization coherent receiver contains four balanced receivers and a dual polarization 90 degree optical hybrid. The optical hybrids have limited wavelength coverage, mainly from 1530 nm to 1610 nm, and could be customized for 2000 nm operation. The InGaAs balanced receivers offer several features such as user-adjustable RF gain, bandwidth, and mode of operation (Automatic Gain Control [AGC] or Manual Gain Control). The AGC mode with a programmable differential voltage output up to 750 mV peak-to-peak compensates atmospheric fades and maximizes Effective Number of Bits (ENOBs) for backend digital signal processing.

*CLRC 2016, June 26 – July 1


Previous, Next and Return To Papers and Patents Previous Back Next

Discovery Semiconductors footer line blue Home | Quality | Papers | News | About Us | Contact Us | Disclaimer | Privacy Policy | Help Viewing Our Site | Site Index
Discovery Semiconductors, Inc.® - 119 Silvia Street, Ewing, NJ 08628 USA
Tel: +1 (609) 434-1311 - Fax: +1 (609) 434-1317 Copyright ©1997-2017  All Rights Reserved