Dual-frequency fiber laser

470 MHz stable beat

Physically separates the two frequency components at MHz-scale differences via a bidirectional dual-path ring cavity, providing a high-coherence source for heterodyne detection and LiDAR.

Shihuai, Li · Zhu, Feng · Wen, Qiao

Sensors 2026

Specifications

拍频信号

{'zh': '470', 'en': ''} MHz

SNR

{'zh': '>70', 'en': '>70'} dB

Single-frequency mode linewidths

{'zh': '1.1', 'en': '1.1'} kHz