Yang, Lan and Carmon, Tal and Min, Bumki and Spillane, Sean M. and Vahala, Kerry J. (2005) Erbium-doped and Raman microlasers on a silicon chip fabricated by the sol–gel process. Applied Physics Letters, 86 (9). Art. No. 091114. ISSN 0003-6951 http://resolver.caltech.edu/CaltechAUTHORS:YANapl05
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We report high-Q sol–gel microresonators on silicon chips, fabricated directly from a sol–gel layer deposited onto a silicon substrate. Quality factors as high as 2.5×10^7 at 1561 nm were obtained in toroidal microcavities formed of silica sol–gel, which allowed Raman lasing at absorbed pump powers below 1 mW. Additionally, Er3+-doped microlasers were fabricated from Er3+-doped sol–gel layers with control of the laser dynamics possible by varying the erbium concentration of the starting sol–gel material. Continuous lasing with a threshold of 660 nW for erbium-doped microlaser was also obtained.
|Additional Information:||©2005 American Institute of Physics (Received 23 April 2004; accepted 26 January 2005; published online 25 February 2005) This work was supported by the Defense Advanced Research Project Agency, the National Science Foundation, and the Caltech Lee Center.|
|Subject Keywords:||microchip lasers; silicon; substrates; erbium; doping; sol-gel processing; Raman lasers; Q-factor; infrared sources|
|Usage Policy:||No commercial reproduction, distribution, display or performance rights in this work are provided.|
|Deposited By:||Archive Administrator|
|Deposited On:||28 Apr 2006|
|Last Modified:||26 Dec 2012 08:51|
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