基于改进型双程Mach-Zehnder干涉仪的可调谐和可切换多波长掺铒光纤环laser
Tunable and switchable multi-wavelength erbium-doped fiber ring laser based on a modified dual-pass Mach-Zehnder interferometer
摘要：
提出并实现了一种基于新型可调谐梳状滤波器的可调谐、可开关多波长环形腔掺铒光纤激光器。通过调整偏振控制器，可以容易地实现信道间隔可调谐性和波长切换（交织）的双功能操作。在室温下，在3dB带宽内，获得了29条间距为0.4nm的稳定激光谱线和14个间距为0.8nm的激光波长。此外，激光输出，包括激光线的数量，激光的均匀性和激光的位置，也可以灵活地调整，通过波长相关的偏振旋转机制。
英文摘要：
A tunable and switchable multi-wavelength erbium-doped fiber ring laser based on a new type tunable comb filter is proposed and demonstrated. By adjusting the polarization controllers, dual-function operation of the channel spacing tunability and the wavelength switching (interleaving) can be readily achieved. Up to 29 stable lasing lines with 0.4 nm spacing and 14 lasing wavelengths with 0.8 nm spacing in 3 dB bandwidth were obtained at room temperature. In addition, the lasing output, including the number of the lasing lines, the lasing evenness and the lasing locations, can also be flexibly adjusted through the wavelength-dependent polarization rotation mechanism.
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