外文题目: Tunable compensation of GVD-induced FM-AM conversion in the front end of high-power lasers
作者: Li, Rao; Fan, Wei; Jiang, Youen; Qiao, Zhi; Zhang, Peng; Lin, Zunqi
刊名: Appl. Optics
年: 2017 卷: 56 期: 4 页： 993--998
英文关键词:

AMPLITUDE-MODULATION CONVERSION; DISPERSION COMPENSATION; FIBERS; SYSTEMS
英文摘要:
Group velocity dispersion (GVD) is one of the main factors leading to frequency modulation (FM) to amplitude modulation (AM) conversion in the front end of high-power lasers. In order to compensate the FM-AM modulation, the influence of GVD, which is mainly induced by the phase filter effect, is theoretically investigated. Based on the theoretical analysis, a high-precision, high-stability, tunable GVD compensatory using gratings is designed and experimentally demonstrated. The results indicate that the compensator can be implemented in high-power laser facilities to compensate the GVD of fiber with a length between 200-500 m when the bandwidth of a phase-modulated laser is 0.34 nm or 0.58 nm and the central wavelength is in the range of 1052.3217-1053.6008 nm. Due to the linear relationship between the dispersion and the spacing distance of the gratings, the compensator can easily achieve closed-loop feedback controlling. The proposed GVD compensator promises significant applications in large laser facilities, especially in the future polarizing fiber front end of high-power lasers. (C) 2017 Optical Society of America


文献类型: 期刊论文
正文语种: English
收录类别: SCI
DOI: 10.1364/AO.56.000993


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