This thesis experimentally characterizes the polarization dependence of an all-optical flip-flop (AOFF) based on a resonant-type semiconductor optical amplifier. Previous demonstrations of such an optical-memory device have exhibited poor on-off contrasts of around 3 dB (2:1). Our work maps out the dependence of the bistable hysteresis on the injected polarization state for the first time and clearly shows how to optimize the on-off contrast to achieve 8 dB. Beyond this optimization technique, it also demonstrate a novel technique to achieve and on-off contrast exceeding 30 dB (1000:1).

Library of Congress Subject Headings

Optical fiber communication--Equipment and supplies--Design and construction; Signal processing; Optical amplifiers; Semiconductor lasers

Publication Date


Document Type


Department, Program, or Center

Electrical, Computer and Telecommunications Engineering Technology (CAST)


Maywar, Drew


Note: imported from RIT’s Digital Media Library running on DSpace to RIT Scholar Works. Physical copy available through RIT's The Wallace Library at: TK5103.592.F52 I77 2012


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