Multiwavelength pulse generation using a SESAM-based mode-locked fiber laser together with Fabry–Perot filter
Multiwavelength pulse generation using a SESAM-based mode-locked fiber laser together with Fabry–Perot filter
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DOI：
10.1007/s00340-015-6182-1
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发表时间：
2015-07
期刊：
影响因子：
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通讯作者：
Changxiu Chen;Zhichao Wu;S. Fu;Yiyang Luo;B. Liu;Deming Liu
中科院分区：
文献类型：
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作者：
Changxiu Chen;Zhichao Wu;S. Fu;Yiyang Luo;B. Liu;Deming Liu
提出了一种简单紧凑的多波长脉冲发生器的结构，并进行了实验验证，使用基于SESAM的被动锁模光纤激光器与光纤法布里-珀罗滤波器。通过优化光纤环形腔的色散，得到了3dB带宽为8.1nm的平坦矩形光谱，功率起伏小于0.5dB。在被动锁模光纤激光器的输出端插入光纤法布里-珀罗滤波器，在功率均匀性<3dB的条件下，可以同时获得40个波长间隔为0.2nm的信道。经波分解复用和光电转换后，在重复频率为20.3MHz时，测得单路脉冲半高宽为30 ps。
A simple and compact configuration of multiwavelength pulse generator is proposed and experimentally demonstrated, using a SESAM-based passively mode-locked fiber laser together with fiber Fabry–Perot filter. By optimizing the dispersion of fiber ring cavity, a flat rectangular optical spectrum with 3 dB bandwidth of 8.1 nm is obtained, with power fluctuation of <0.5 dB. Inserting a fiber Fabry–Perot filter at the output of passively mode-locked fiber laser, we can simultaneously obtain 40 channels with 0.2 nm wavelength spacing, under the condition of <3 dB power uniformity. After wavelength-division demultiplexing and optic-to-electronic conversion, the full width at half maximum (FWHM) of single channel pulse is measured to be 30 ps while the repetition rate of pulse train is 20.3 MHz.