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High power Er:YAG laser with radially-polarized Laguerre-Gaussian (LG(01)) mode output
- Kim, Ji Won;
- Mackenzie, Jacob Isa;
- Hayes, John R.;
- Clarkson, W. Andrew
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A simple method for conditioning the pump beam in an end-pumped solid-state laser to allow direct excitation of the first order Laguerre-Gaussian doughnut (LG(01)) mode is reported. This approach has been applied to a hybrid (fiber-laser-pumped) Er: YAG laser yielding 13.1 W of continuous-wave output at 1645 nm in a radially-polarized LG(01) doughnut beam with beam propagation factor (M-2) < 2.4 for 34 W of incident pump power at 1532 nm. The corresponding slope efficiency with respect to incident pump power was 48%. The prospects of further power scaling and improved laser performance are discussed. (C) 2011 Optical Society of America
키워드
FIBER; ORBITAL ANGULAR-MOMENTUM; ORDER; ELEMENTS; OPERATION; AXICON; WAVE-GUIDES; LIGHT; BOTTLE BEAM; GENERATION; ORBITAL ANGULAR-MOMENTUM; BOTTLE BEAM; WAVE-GUIDES; GENERATION; ORDER; LIGHT; FIBER; OPERATION; ELEMENTS; AXICON
- 제목
- High power Er:YAG laser with radially-polarized Laguerre-Gaussian (LG(01)) mode output
- 저자
- Kim, Ji Won; Mackenzie, Jacob Isa; Hayes, John R.; Clarkson, W. Andrew
- 발행일
- 2011-07
- 유형
- Article
- 저널명
- Optics Express
- 권
- 19
- 호
- 15
- 페이지
- 14526 ~ 14531
- 언어
- ENG
- 출판사
- OPTICAL SOC AMER
- 발행국가
- 미국
- 분량
- 6 페이지
- ISSN
- P 1094-4087