Balanced Optical Receivers Improve Sensitivity of Digital Fiber Links by Over 3 dB

Balanced optical receivers manufactured by Discovery Semiconductors Inc. have been demonstrated to improve link sensitivity by 3 dB or more in applications such as DPSK, differential phase shift keying, and DQPSK, differential quadrature phase shift keying. In DPSK detection the phase of the optical signal is compared with a one bit delayed version of bit stream after passing through an optical interlever. The advantage versus OOK (on off keying) modulation lies in the 100% duty cycle possible with balanced detection.

Discovery offers two InGaAs balanced receivers with bandwidths of 14 and 20 GHz, the models DSCR405 and DSCR405ER respectively. These are targeted at digital telecommunications markets using 10 and 20 Gbps with FEC and RZ formats.

For quotations on a balanced optical receiver for your application, please call us at 609-434-1311 or fax 609-434-1317.

About Discovery Semiconductors, Inc.

Discovery is a privately held US company that leads the world in production of ultra-wide bandwidth microwave photonic modules, including its latest products for 60, 65 and 70 GHz bandwidths. The company is recognized as one of NJ's fastest growing companies for the third year in the row and winner of the Small Business Administration's (SBA) Ronald Tibbets award for successful commercialization of contract research. Discovery continues to innovate; developing balanced optical receivers, optical receiver/microwave transmitter modules for wireless LMDS and wide bandwidth 2-micron wavelength optical receivers. Its products serve 4 market segments: Military, Fiber Optic Telecommunications, high bit-rate Wireless Communications and Custom Developments.

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.