A flexible and ultra-flat optical frequency comb generator using a parallel Mach-Zehnder modulator with a single DC bias
A flexible and ultra-flat optical frequency comb generator using a parallel Mach-Zehnder modulator with a single DC bias
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DOI：
10.1016/j.optcom.2015.07.065
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发表时间：
2015-12
影响因子：
2.4
通讯作者：
L. Shang;Yaping Li;Liang Ma;Jun Chen
中科院分区：
文献类型：
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作者：
L. Shang;Yaping Li;Liang Ma;Jun Chen
对利用双平行马赫-曾德尔调制器（DPMZM）实现的平坦光频梳产生器进行了详细的理论和实验研究。在该方案中，DPMZM的两个子调制器分别偏置在最大和最小传输点。通过调节射频信号的功率，可以产生两个具有偶次谐波或奇次谐波的光频梳。因此，在DPMZM的末端，理论和实验上产生了侧梳抑制比（SCSR）高于18 dB的5线和7线平坦OFC。光频梳发生器方案相对简单且有价值，这是因为仅可控制一个偏置电压。
A flat optical frequency comb generator utilizing a single dual parallel Mach–Zehnder modulator (DPMZM) is detailed investigated both in theory and experiment. In the scheme, the two sub-modulators of DPMZM are biased at the maximum and minimum transmission points respectively. By adjusting the RF signals power, two optical frequency combs with even harmonics or odd harmonics can be generated. So at the end of DPMZM, 5 and 7-line flat OFCs with a side-comb suppression ratio (SCSR) higher than 18 dB are theoretically and experimentally generated. The optical frequency comb generator scheme is relatively simple and valuable due to only one bias voltage may be controlled.