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Optimization of highly nonlinear dispersion-flattened photonic crystal fiber for supercontinuum generation 被引量:5
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作者 张亚妮 《Chinese Physics B》 SCIE EI CAS CSCD 2013年第1期298-302,共5页
A simple type of photonic crystal fiber (PCF) for supercontinuum generation is proposed for the first time. The proposed PCF is composed of a solid silica core and a cladding with square lattice uniform elliptical a... A simple type of photonic crystal fiber (PCF) for supercontinuum generation is proposed for the first time. The proposed PCF is composed of a solid silica core and a cladding with square lattice uniform elliptical air holes, which offers not only a large nonlinear coefficient but also a high birefringence and low leakage losses. The PCF with nonlinear coefficient as large as 46 W-1 · km-1 at the wavelength of 1.55 um and a total dispersion as low as ±2.5 ps. nm-1 · km -1 over an ultra-broad waveband range of the S-C-L band (wavelength from 1.46 um to 1.625 um) is optimized by adjusting its structure parameter, such as the lattice constant A, the air-filling fraction f, and the air-hole ellipticity η. The novel PCF with ultra-flattened dispersion, highly nonlinear coefficient, and nearly zero negative dispersion slope will offer a possibility of efficient super-continuum generation in telecommunication windows using a few ps pulses. 展开更多
关键词 fiber optics and waveguides full vector finite element method confinement loss
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Array Waveguide Grating Based Fiber Lasers
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作者 Shien-Kuei Liaw 《光学学报》 EI CAS CSCD 北大核心 2003年第S1期-,共2页
Two array waveguide grating (AWGs) based fiber ring lasers are experimentally demonstrated. Either of them achieves wavelength discrete tuning of 32 nm, or yields simultaneously lasing up to four channels with -7 dBm ... Two array waveguide grating (AWGs) based fiber ring lasers are experimentally demonstrated. Either of them achieves wavelength discrete tuning of 32 nm, or yields simultaneously lasing up to four channels with -7 dBm output power for each channel. 展开更多
关键词 AWG in be as Array waveguide Grating Based fiber Lasers of DBM HAVE for
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