Laser Solutions (한국레이저가공학회지)
- Volume 14 Issue 3
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- Pages.17-20
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- 2011
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- 1229-0963(pISSN)
Direct writing of multi-layer diffraction grating inside fused silica glass by using a femtosecond laser
펨토초 레이저를 이용한 실리카 내부의 다층 회절격자 가공 기술
- Choi, Hun-Kook (Department of Photonic Eng., Chosun University) ;
- Kim, Jin-Tae (Department of Photonic Eng., Chosun University) ;
- Sohn, Ik-Bu (Precision Optic Lab., Advanced Photonics Research Institute, GIST) ;
- Noh, Young-Chul (Precision Optic Lab., Advanced Photonics Research Institute, GIST)
- 최훈국 (조선대학교 공과대학 광기술공학과 레이저응용연구실) ;
- 김진태 (조선대학교 공과대학 광기술공학과 레이저응용연구실) ;
- 손익부 (광주과학기술원 고등광기술연구소 미세광학연구실) ;
- 노영철 (광주과학기술원 고등광기술연구소 미세광학연구실)
- Received : 2011.04.01
- Accepted : 2011.09.22
- Published : 2011.09.30
Abstract
We fabricated a multi-layer diffraction grating inside fused silica glass by using a femtosecond laser direct writing method. The femtosecond laser with a wavelength of 515 nm, a pulse width of 250 fs, a repetition rate of 100 kHz, and an average output power of 6 W was used. Two layer diffraction grating with a grating period of
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