Wavelength-Tunable Optical Two-Tone Signals Generated Using Single Mach-Zehnder Optical Modulator in Single Polarization-Mode Sagnac Interferometer
Wavelength-Tunable Optical Two-Tone Signals Generated Using Single Mach-Zehnder Optical Modulator in Single Polarization-Mode Sagnac Interferometer
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DOI：
10.3390/photonics9030194
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发表时间：
2022-03
期刊：
影响因子：
2.4
通讯作者：
A. Chiba;Yosuke Akamatsu
中科院分区：
文献类型：
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作者：
A. Chiba;Yosuke Akamatsu
我们演示了在任意c波段波长下产生60 GHz分离光双音信号，而不涉及复杂的光波长滤波。在模型分析的基础上，利用偏振器实现了对低阶光带的选择性抑制。通过将该方案与优化参数相结合，在40 nm波长范围内成功地实现了超过20 dB的非期望光边带抑制。该方案允许我们产生所需波长的光学双音信号。
We demonstrate 60 GHz separation optical two-tone signal generation at arbitrary C-band wavelengths without involving complicated optical wavelength filtering. By utilizing a polarizer, the selective suppression of undesired low-order optical sidebands has been proven and optimized based on model analysis. By utilizing this scheme in conjunction with the optimized parameters, more than 20 dB of suppression of undesired optical sidebands have been successfully achieved over a 40 nm wavelength range. This scheme allows us to generate optical two-tone signals at the desired wavelength.