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Low-power optical bistability in a free-standing silicon ring resonator

Peng Sun, Ronald M. Reano

We demonstrate low-power thermo-optic-based optical bistability in a free-standing silicon ring resonator. A bistable optical response is achieved at reduced pump powers by thermally isolating the ring resonator from its supporting substrate with an air gap. The conversion efficiency from optical power to temperature change in the silicon core is enhanced. The optical transfer function of the resulting free-standing resonator exhibits a hysteresis loop for 80 microW input optical power. Similar nonthermally isolated resonators at the same detuning do not exhibit a bistable mode for input powers less than 2 mW.We demonstrate low-power thermo-optic-based optical bistability in a free-standing silicon ring resonator. A bistable optical response is achieved at reduced pump powers by thermally isolating the ring resonator from its supporting substrate with an air gap. The conversion efficiency from optical power to temperature change in the silicon core is enhanced. The optical transfer function of the resulting free-standing resonator exhibits a hysteresis loop for 80 microW input optical power. Similar nonthermally isolated resonators at the same detuning do not exhibit a bistable mode for input powers less than 2 mW.

Optics LettersApr 2, 201040 citations

Optical Bistability based on the Carrier dispersion effect in SOI Ring Resonators

Qianfan Xu, Michal F. Lipson

We measure optical bistability in a micron-size silicon ring resonator based on the free-carrier dispersion effect in silicon. Optical transfer function of the resonator shows hysteresis loop with less than 10 mW input optical power.

Integrated Photonics ResearchJan 1, 20062 citations

Carrier-induced optical bistability in silicon ring resonators

Qianfan Xu, Michal F. Lipson

We demonstrate optical bistability in a micrometer-sized silicon ring resonator based on the free-carrier dispersion effect in silicon. We measure the transfer function of the resonator showing a hysteresis loop with an input optical power of less than 10 mW. The influence of the thermal optical effect, which is minimized in the experiment by use of nanosecond pulses, is evaluated theoretically. Applications include sequential logic operations for all-optical routing.

Optics LettersJan 1, 2006244 citations

Optical bistability analysis inside a two-bus ring resonator

Gino Priem, Pieter Dumon, Wim Bogaerts +3 more

We demonstrate experimentally optical bistability inside a two-bus ring resonator fabricated in silicon-on-insulator with a power of only 680 /spl mu/W. We have analysed the different contributions leading to this bistable behaviour and show that the dominant nonlinear effects are free carrier based.

IEEE Lasers and Electro-Optics Society Annual Meeting (LEOS)Jan 1, 20050 citations

Optical bistability on a silicon chip

Vilson R. Almeida, Michal F. Lipson

We demonstrate, for the first time to our knowledge, optical bistability on a highly integrated silicon device, using a 5-microm-radius ring resonator. The strong light-confinement nature of the resonator induces nonlinear optical response with low pump power. We show that the optical bistability allows all-optical functionalities, such as switching and memory with microsecond time response and a modulation depth of 10 dB, driven by pump power as low as 45 microW. Silicon optical bistability relies on a fast thermal nonlinear optical effect presenting a 500-kHz modulation bandwidth.We demonstrate, for the first time to our knowledge, optical bistability on a highly integrated silicon device, using a 5-microm-radius ring resonator. The strong light-confinement nature of the resonator induces nonlinear optical response with low pump power. We show that the optical bistability allows all-optical functionalities, such as switching and memory with microsecond time response and a modulation depth of 10 dB, driven by pump power as low as 45 microW. Silicon optical bistability relies on a fast thermal nonlinear optical effect presenting a 500-kHz modulation bandwidth.

Optics LettersOct 15, 2004423 citations

Optical bistability in high-Q silicon-germanium ring resonators in the mid-infrared

Marko Perestjuk, Rémi Armand, Julien H. Lumeau +11 more

We strongly improve the power coupling to high quality factor on-chip silicon germanium ring resonators by fabrication optimization and anti-reflection coatings. This allows us to demonstrate optical bistability on the silicon-germanium-on-silicon platform in the mid-infrared at wavelengths around 4.1µm.

Jul 1, 20240 citations

Free-Standing Silicon Ring Resonator for Low Power Optical Bistability

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Free-Standing Silicon Ring Resonator for Low Power Optical Bistability

Abstract

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