Off-Axis Multi-Chip Birefringent Filter VECSEL

2.76 MHz Narrow Linewidth

A vertical external-cavity surface-emitting laser (VECSEL) employing off-axis multi-chip birefringent filters (BRFs) as mode-selection elements, achieving the narrowest linewidth reported for VECSELs based on this method while maintaining high output power.

Shengjie, Yu · Hou, Guanyu · Tong, Cunzhu · Wang, Yanjing · Zhang, Zhicheng · Wang, Jun

Optics and Laser Technology 2025

Specifications

线宽压缩

{'zh': '2.76', 'en': ''} MHz

最大输出功率

{'zh': '12.3', 'en': ''} W

factor M x

{'zh': '', 'en': '26,'} M²y

调谐速率提高

{'zh': '3.7', 'en': ''} 倍