A novel double-efficiency photonic channelization scheme with optical carrier power suppression (OCS) is proposed for the first time, to the best of our knowledge. In this scheme, a tunable optical frequency comb generator is used to efficiently generate radio-frequency (RF) carriers, and a Fabry–Perot filter (FPF) is introduced to split a broadband signal into multiple narrowband signals. With the well-designed frequency of RF carriers, the wavelength spacing of optical carriers, and the free spectrum range of the FPF, double-channelized efficiency can be obtained. A proof-of-concept system is demonstrated to verify the feasibility of this double-efficiency channelization scheme, in which a 5 GHz baseband signal is channelized into five 1 GHz sub-channels, and about 35 dB OCS is obtained. Moreover, the performance of the double-efficiency channelization scheme is analyzed based on a 5 Gbit/s baseband signal with an on-off keying (OOK) format in which the influence of the 3rd order term interference is discussed.

中文翻译：

---

双效率光子信道化可实现光载波功率抑制

据我们所知，这是首次提出一种具有光载波功率抑制（OCS）的新型双效率光子信道化方案。在此方案中，可调谐光频率梳状发生器用于有效地产生射频（RF）载波，并且引入了Fabry-Perot滤波器（FPF）将宽带信号分成多个窄带信号。通过精心设计的RF载波频率，光学载波的波长间隔以及FPF的自由光谱范围，可以获得双通道效率。演示了一种概念验证系统来验证这种双效率信道化方案的可行性，其中将5 GHz基带信号信道化为五个1 GHz子信道，并获得约35 dB的OCS。而且，