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High-energy Q-switched operation of a fiber-laser-pumped Er:YAG laser
- Issue Date
- Nov-2011
- Publisher
- Springer Verlag
- Keywords
- SOLID-STATE LASERS; 1645 NM; OUTPUT; POWER; BIREFRINGENCE; ER-YAG LASER
- Citation
- Applied Physics B: Lasers and Optics, v.105, no.2, pp 263 - 267
- Pages
- 5
- Indexed
- SCI
SCIE
SCOPUS
- Journal Title
- Applied Physics B: Lasers and Optics
- Volume
- 105
- Number
- 2
- Start Page
- 263
- End Page
- 267
- ISSN
- 0946-2171
1432-0649
- Abstract
- A high-energy Q-switched Er:YAG laser in-band pumped by an Er,Yb co-doped fiber laser is reported. A simple two-mirror multi-mode resonator incorporating an electro-optic Q-switch and a multi-Brewster-plate polarizer was employed, together with a simple compensation scheme to reduce the depolarization loss due to thermally induced stress birefringence in the Er:YAG crystal at high pump powers. The laser yielded Q-switched pulses at 1617 nm with 30.5-mJ pulse energy and < 20-ns pulse duration (FWHM) at 20-Hz repetition rate, corresponding to a peak power of > 1.5 MW for 55 W of pump power at 1532 nm. The prospects for further improvement in Q-switched performance are discussed.
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Related Researcher
- Kim, Ji Won
- ERICA 첨단융합대학 (ERICA 지능정보양자공학전공)