Abstract

We propose a microwave photonic link to transmit a dual-chirp microwave waveform over fiber with compensation of dispersion-induced power fading. In a center office (CO), we use a polarization-dependent dual-parallel Mach–Zehnder modulator (DPMZM) which is driven by a radio frequency (RF) carrier and a baseband single-chirped waveform to realize carrier-suppressed dual-sideband (CS-DSB) modulation at two orthogonal polarization states. When the CS-DSB optical signal is detected by a photodetector (PD) at a base station (BS), the dual-chirp waveform is generated. However, along with the transmission to different BSs before emission, the chromatic dispersion of fiber will cause power fading. In our link, we can simply adjust the polarization controller (PC) in each BS to compensate for the dispersion-induced power fading for different transmission distances and RF carrier frequencies. Besides, the link can realize one to multitransmission with shared dual-chirp microwave source in CO for radars. The proposed scheme is theoretically analyzed and experimentally verified.

© 2018 Optical Society of America

Chromatic-dispersion-induced power-fading suppression technique for bandwidth-quadrupling dual-chirp microwave signals over fiber transmission

Sha Zhu, Ming Li, Ning Hua Zhu, and Wei Li
Opt. Lett. 44(4) 923-926 (2019)

Photonic generation of quadruple bandwidth dual-band dual-chirp microwave waveforms with immunity to power fading

Xiaojie Fan, Sha Zhu, Jinfeng Du, Ming Li, Ning Hua Zhu, and Wei Li
Opt. Lett. 46(4) 868-871 (2021)

Dual-chirp microwave waveform transmitter with elimination of power fading for one-to-multibase station fiber transmission

Sha Zhu, Xiaojie Fan, Ming Li, Ning Hua Zhu, and Wei Li
Opt. Lett. 45(5) 1285-1288 (2020)

Anti-chromatic dispersion transmission of frequency and bandwidth-doubling dual-chirp microwave waveform

Kun Zhang, Shang Hong Zhao, Ai Jun Wen, Wu Zhang, Wei Le Zhai, Tao Lin, and Xuan Li
Opt. Lett. 44(16) 4004-4007 (2019)

Broadband chromatic-dispersion-induced power-fading compensation for radio-over-fiber links based on Hilbert transform

Mingzheng Lei, Zhennan Zheng, Jinwang Qian, Mutong Xie, Yunping Bai, Xinlu Gao, and Shanguo Huang
Opt. Lett. 44(1) 155-158 (2019)