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Stable and broad bandwidth multiwavelength fiber ring laser incorporating a highly nonlinear photonic crystal fiber

机译:结合了高度非线性的光子晶体光纤的稳定和宽带的多波长光纤环形激光器

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摘要

A stable and broad bandwidth multiwavelength fiber ring laser suitable for use in dense wavelength-division-multiplexing systems is demonstrated. A highly nonlinear photonic crystal fiber is inserted in the ring cavity to stabilize the power fluctuation and broaden the output spectrum. A thin-film Fabry-Pérot etalon filter is used to get stable wavelength lasing. A Sagnac filter is employed to achieve uniform power distribution at each wavelength at the laser output. A laser with a power fluctuation about 0.1 dB in each wavelength within 20 min and with wavelength shift of less than 0.016 nm within 10 min is achieved. A stable 24-wavelength lasing operation with wavelength spacing of 0.8 nm within the 3-dB spectral range of 1573-1594 nm and signal-to-noise ratio better than 48 dB is observed experimentally.
机译:展示了一种适用于密集波分复用系统的稳定,宽带宽的多波长光纤环形激光器。将高度非线性的光子晶体光纤插入环形腔中,以稳定功率波动并扩大输出频谱。薄膜Fabry-Pérot标准具标准滤光片用于获得稳定的波长激光。 Sagnac滤光片用于在激光输出的每个波长处实现均匀的功率分布。实现了一种激光器,该激光器在20分钟内每个波长的功率波动约为0.1 dB,并且在10分钟内波长偏移小于0.016 nm。实验观察到了稳定的24波长激光操作,波长间隔为157 nm至1594 nm的3 dB光谱范围内为0.8 nm,信噪比优于48 dB。

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