title: Optical frequency comb based multi-band microwave frequency conversion for satellite applications.
abstract: Based on optical frequency combs (OFC), we propose an efficient and flexible multi-band frequency conversion scheme for satellite repeater applications. The underlying principle is to mix dual coherent OFCs with one of which carrying the input signal. By optically channelizing the mixed OFCs, the converted signal in different bands can be obtained in different channels. Alternatively, the scheme can be configured to generate multi-band local oscillators (LO) for widely distribution. Moreover, the scheme realizes simultaneous inter- and intra-band frequency conversion just in a single structure and needs only three frequency-fixed microwave sources. We carry out a proof of concept experiment in which multiple LOs with 2 GHz, 10 GHz, 18 GHz, and 26 GHz are generated. A C-band signal of 6.1 GHz input to the proposed scheme is successfully converted to 4.1 GHz (C band), 3.9 GHz (C band) and 11.9 GHz (X band), etc. Compared with the back-to-back (B2B) case measured at 0 dBm input power, the proposed scheme shows a 9.3% error vector magnitude (EVM) degradation at each output channel. Furthermore, all channels satisfy the EVM limit in a very wide input power range.
authors: Xinwu
authors: X
authors: Yang
authors: Kun
authors: K
authors: Xu
authors: Jie
authors: J
authors: Yin
authors: Yitang
authors: Y
authors: Dai
authors: Feifei
authors: F
authors: Yin
authors: Jianqiang
authors: J
authors: Li
authors: Hua
authors: H
authors: Lu
authors: Tao
authors: T
authors: Liu
authors: Yuefeng
authors: Y
authors: Ji
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D008872:Microwaves; D055096:Optical Devices; D018531:Spacecraft / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*