科研之友
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摘要
We propose and experimentally demonstrate the polarization manipulation with mode profile maintenance for LP01, LP11a, and LP11b modes, with the help of elliptical-core few-mode fiber (e-FMF) based traditional polarization controller (PC) configuration. By manually adjusting the PC, we can successfully realize polarization conversion between horizontal and vertical linear polarizations, while individual mode profiles can be maintained without distortion. More than 30 dB of polarization extinction ratio (PER) can be achieved over the C-band, with little insertion loss of 0.2dB. The proposed all-fiber configuration is helpful to manage the polarization of high-order LP modes.
