Optical pulse compression using the combination of phase modulation and high-order dispersion compensation |
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Authors: | Guo Deng Wei Pan Xihua Zou |
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Institution: | 1. Center for Information Photonics and Communications, School of Information Science and Technology, Southwest Jiaotong University, Chengdu, 610031, China
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Abstract: | Optical pulse compression using high-order dispersion compensation is proposed and theoretically analyzed. Firstly, the required
dispersion profile for the high-order dispersion compensation is derived, according to the linear chirp and the nonlinear
chirp of a phase-modulated continuous-wave (CW) laser source. With the use of the high-order dispersion compensation, such
as the combination compensation of the second order dispersion (SOD) and the fourth order dispersion (FOD), an efficient pulse
compression having a less time-bandwidth product and a greater peak power is realized. A sampled fiber Bragg grating (FBG)
with both the SOD and the FOD is then designed using the equivalent chirp and the reconstruction algorithm. Finally, in the
numerical simulation an optical pulse with a time-bandwidth product of 0.79 is generated via high-order dispersion compensation
that is performed by using the sampled FBG. |
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Keywords: | |
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