title: Narrowband Er:YAG nonplanar ring oscillator at 1645 nm.
abstract: We report 1645 nm narrowband operation of a monolithic Er:YAG nonplanar ring oscillator resonantly pumped at 1532 nm. Unidirectional cw power up to 0.5 W was obtained with a measured linewidth of 21 kHz.
authors.affiliation: Photonics Technology Department, Electronics and Photonics Laboratory, The Aerospace Corporation, 2350 East El Segundo Boulevard, El Segundo, California 90245, USA. dawun.chen@aero.org
authors.forename: Da-Wun
authors.initials: DW
authors.lastname: Chen
authors.forename: Paul M
authors.initials: PM
authors.lastname: Belden
authors.forename: Todd S
authors.initials: TS
authors.lastname: Rose
authors.forename: Steven M
authors.initials: SM
authors.lastname: Beck