Optical multistability in a silicon-core silicacladding fiber

Ivan A. Temnykh, Neil F. Baril, Zhiwen Liu, John V. Badding, Venkatraman Gopalan

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Abstract

We fabricate a novel silicon-core silica-cladding optical fiber using high pressure chemical fluid deposition and investigate optical transmission characteristics at the telecommunications wavelength of 1550 nm. High thermo-optic and thermal expansion coefficients of silicon give rise to a thermal phase shift of 6.3 rad/K in a 4 mm-long, 6.9 μm diameter fiber acting as a Fabry-Perot resonator. Using both power and wavelength modulation, we observe all-optical bistability at a low threshold power of 15 mW, featuring intensity transitions of 1.4 dB occurring over <0.1 pm change in wavelength. Threshold powers for higher-order multistable states are predicted. Tristability is experimentally confirmed.

Original languageEnglish (US)
Pages (from-to)5305-5313
Number of pages9
JournalOptics Express
Volume18
Issue number5
DOIs
StatePublished - Mar 1 2010

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All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

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