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Variable single-passband narrowband optical filter based on forward stimulated interpolarization scattering in photonic crystal fiber

机译:基于光子晶体光纤中前向受激偏振间散射的可变单通窄带光学滤波器

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摘要

A variable transmission spectrum single-passband narrowband optical filter is proposed and experimentally demonstrated. It is based on forward stimulated interpolarization scattering (SIPS) in a photonic crystal fiber by applying a differential quadrature phase-shift keying modulation to the pump wave to broaden and shape the SIPS gain spectrum. By choosing the bit rate of the modulation data pattern, a flat-top steep-cutoff optical bandpass filter with a 3 dB bandwidth of 70 MHz and a 10 dB bandwidth of 90 MHz is realized. In addition, a variable narrowband optical notch filter is also realized by attenuation of the pump wave.
机译:提出了一种可变传输谱的单通带窄带光学滤波器,并进行了实验验证。它基于光子晶体光纤中的前向受激极化偏振散射(SIPS),方法是对泵浦波施加差分正交相移键控调制,以加宽并整形SIPS增益谱。通过选择调制数据模式的比特率,可以实现具有70 MHz的3 dB带宽和90 MHz的10 dB带宽的平顶陡截止光学带通滤波器。另外,可变的窄带光学陷波滤波器也通过泵浦波的衰减来实现。

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