2010/08/05 by Wei Liang, W. Liang, V. S. Ilchenko +8 · 268 citations
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Distributed feedback laser #Injection seeder #Laser #Laser linewidth #Materials science #Mechanical and Optical Resonators #Optical cavity #Optics #Optoelectronics #Photonic and Optical Devices #Physics #Q factor #Resonator #Semiconductor laser theory #Whispering-gallery wave #physics.optics
paper · pdf · doi:10.1364/ol.35.002822
published in Optics Letters 35(16), 2822 (Optica Publishing Group) · To be published in Optics Letters
arxiv created 2010/08/05 · openalex publication_date 2010/08/13 · arxiv updated 2016/04/13 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We demonstrate a miniature self-injection locked distributed-feedback laser using resonant optical feedback from a high-Q crystalline whispering-gallery-mode resonator. The linewidth reduction factor is greater than 10,000, with resultant instantaneous linewidth of less than 200 Hz. The minimal value of the Allan deviation for the laser-frequency stability is 3 x 10(-12) at the integration time of 20 micros. The laser possesses excellent spectral purity and good long-term stability.