光学
微波食品加热
材料科学
光子学
物理
相位调制
调制(音乐)
光电子学
带宽(计算)
光子晶体
作者
Yuan Men,Aijun Wen,Yuanyuan Li,Yubo Tong
出处
期刊:Optics Letters
[The Optical Society]
日期:2021-04-01
卷期号:46 (7): 1696-1699
摘要
In this paper, a flexible multi-band linearly frequency modulated (LFM) signal generator based on a dual-polarization binary phase-shift keying (DP-BPSK) modulator is proposed and demonstrated by experiment. Two dual-drive Mach-Zehnder modulators of the DP-BPSK modulator are driven by a local oscillator (LO) signal and an LFM signal, respectively. By appropriately changing the phase difference introduced by a polarization controller, flexible multi-band LFM signals can be obtained after photoelectric conversion. The LO signal is phase modulated to eliminate self-heterodyne, which will affect the quality of the resulting signal.
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