Wang Qiang, Huo Li, Xing Yanfei, Zhou Bingkun
Opt Lett. 2014 May 15;39(10):3050-3. doi: 10.1364/OL.39.003050.
We propose and experimentally demonstrate a simple and cost-effective ultra-flat optical frequency comb (OFC) generator by directly modulating a standalone dual-parallel Mach-Zehnder modulator (DP-MZM) with only one radio frequency (RF) signal without any other assisting devices. Five- and seven-tone OFC with exactly the same intensity can be theoretically generated using two sets of parameters obtained by solving equations derived from the DP-MZM modulation model. In good agreement with the theoretical results, five- and seven-tone OFC with flatness of 0.1 and 1 dB are experimentally demonstrated, respectively.
我们提出并通过实验证明了一种简单且经济高效的超平坦光学频率梳（OFC）发生器，该发生器通过仅用一个射频（RF）信号直接调制一个独立的双平行马赫曾德尔调制器（DP-MZM），无需任何其他辅助设备。利用通过求解从DP-MZM调制模型导出的方程获得的两组参数，理论上可以生成强度完全相同的五音调和七音调OFC。与理论结果高度吻合，分别通过实验证明了平坦度为0.1 dB和1 dB的五音调和七音调OFC。
