Impact of dispersion profiles of silicon waveguides on optical parametric amplification in the femtosecond regime | Zendy

Zhaolu Wang | Zendy; Hongjun Liu | Zendy; Nan Huang | Zendy; Qibing Sun | Zendy; Jin Wen | Zendy

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Impact of dispersion profiles of silicon waveguides on optical parametric amplification in the femtosecond regime

Author(s) -

Zhaolu Wang,

Hongjun Liu,

Nan Huang,

Qibing Sun,

Jin Wen

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.024730

Subject(s) - optics , femtosecond , materials science , waveguide , optical parametric amplifier , dispersion (optics) , ultrashort pulse , silicon , silicon photonics , self phase modulation , optoelectronics , laser , optical amplifier , nonlinear optics , physics

The impact of dispersion profiles of silicon waveguides on femtosecond optical parametric amplification (OPA) is theoretically investigated. It is found that flat quasi-phase-matching, smooth temporal profiles and separable spectra for 200 fs pulses can be obtained by tailoring the cross-section of silicon rib waveguide. We achieve on-chip parametric gain as high as 26.8 dB and idler conversion gain of 25.6 dB for a low pump peak power over a flat bandwidth of 400 nm in a 10-mm-long dispersion engineered silicon waveguide. Our on-chip OPA can find important potential applications in highly integrated optical circuits for all-optical ultrafast signal processing.

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