Whispering-gallery-mode-resonator-based ultranarrow linewidth external-cavity semiconductor laser

作者：Wei Liang, Vladimir S. Ilchenko, Anatoliy A. Savchenkov, Andrey B. Matsko, D. Seidel, Lute Maleki · 发表于：Optics Letters · 年份：2010 · DOI：10.1364/ol.35.002822 · 被引用次数：275 · 研究领域：Photonic and Optical Devices、Advanced Fiber Laser Technologies、Mechanical and Optical Resonators

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.