Combined PSK/ASK modulation format for the STARNET WDM local-area network

Michael James Hickey; Charles F. Barry; Leonid G. Kazovsky

doi:10.1117/12.139324

17 December 1992 Combined PSK/ASK modulation format for the STARNET WDM local-area network

Michael James Hickey, Charles F. Barry, Leonid G. Kazovsky

Proceedings Volume 1787, Multigigabit Fiber Communications; (1992) https://doi.org/10.1117/12.139324
Event: Fibers '92, 1992, Boston, MA, United States

Abstract

STARNET is a coherent optical wavelength division multiplexed (WDM) local area network. In STARNET, the use of low level amplitude modulation of phase modulated light has been proposed to implement a packet-switched ring network in addition to a high speed circuit- switched network. To verify the feasibility and characterize the effects of amplitude shift- keyed (ASK) modulation on a phase shift-keyed (PSK) receiver, we have measured the sensitivity of a 1.244 Gb/s PSK synchronous heterodyne receiver in the presence of 125 Mb/s ASK modulation. The experiments show that the unmodified (i.e., designed for no ASK modulation) PSK receiver successfully operates with a bit error ratio less than 10^-9 and maintains phase-lock in the presence of ASK modulation for ASK modulation indexes less than 0.5.

Citation Download Citation

Michael James Hickey, Charles F. Barry, and Leonid G. Kazovsky "Combined PSK/ASK modulation format for the STARNET WDM local-area network", Proc. SPIE 1787, Multigigabit Fiber Communications, (17 December 1992); https://doi.org/10.1117/12.139324

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