所属单位：电子信息工程学院

发表刊物：IEEE PHOTONICS TECHNOLOGY LETTERS

关键字：Linear frequency modulation (LFM) micro-wave photonics polarization multiplexing

摘要：A photonic approach to generating dual-band linear frequency modulation (LFM) signal is proposed based on optical frequency quadrupling and polarization multiplexing. This is achieved by using an integrated polarization multiplexing dual-parallel Mach-Zehnder modulator to perform frequency quadrupling in two orthogonal polarizations independently. After optical-to-electrical conversion, two LFM signals in different frequency bands can be generated simultaneously. The proposed scheme has a very simple and compact structure. Thanks to the frequency quadrupling technique, high-frequency, and wideband LFM signals can be generated with low speed electrical devices. The central frequency, bandwidth, and temporal duration of the generated LFM signals can be easily adjusted. In the experiment, the generation of dual-band LFM signals in K-band and Ka-band (centered at 20 and 30 GHz, respectively) is demonstrated. Tunability of the central frequency, bandwidth, and time duration is also verified. The proposed signal generator is a promising candidate in dual-band multi-function radar applications.

ISSN号：1041-1135

是否译文：否

发表时间：2017-08-15

合写作者：郭清水,周沛,潘时龙

第一作者：张方正

通讯作者：张方正,张方正,潘时龙