Chip-scale Brillouin instantaneous frequency measurement by use of one-shot frequency-to-power mapping based on lock-in amplification

• 作者: Yuqiu Xu Yonglan Yang Xing Li Xin Wang Weiwen Zou
• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2021,（11）
• 所属期刊栏目: Microwave Photonics
• 页码范围: 144-148
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL202119.113902

摘要

We demonstrate a chip-scale scheme of Brillouin instantaneous frequency measurement[IFM]in a CMOS-compatible doped silica waveguide chip.In the chip-scale Brillouin IFM scheme,the frequency-to-power mapping process is achieved by one-shot detection without additional time averaging and implemented by lock-in amplification,which successfully detects the Brillouin gain of the doped silica waveguide chip in the time domain.A Costas frequency modulated signal ranging from 8 GHz to 9 GHz is experimentally measured,and the frequency measurement errors are maintained within 58 MHz.