Abstract
A Yb-doped silica microcavity laser on a silicon chip is fabricated from a solgel thin film. The high-Q microtoroid cavity, which has a finesse of 10,000, is evanescently coupled to an optical fiber taper. We report a threshold of absorbed power that is, to the best of our knowledge, the lowest published threshold to date for any Yb-doped laser. The effect of concentration on laser threshold is experimentally quantified.
© 2007 Optical Society of America
Full Article | PDF ArticleMore Like This
Eric P. Ostby and Kerry J. Vahala
Opt. Lett. 34(8) 1153-1155 (2009)
T. J. Kippenberg, S. M. Spillane, D. K. Armani, and K. J. Vahala
Opt. Lett. 29(11) 1224-1226 (2004)
Xiancui Su, Yiran Wang, Guoru Li, Liangbi Su, Shande Liu, Lihe Zheng, Bingyuan Zhang, and Baitao Zhang
Opt. Lett. 47(9) 2362-2365 (2022)