| Presentation | 2008-05-23 A characteristic of laser oscillation on Yb-doped air-hole type double clad fiber laser with HR coating Akihito SUZUKI, Hisashi SAWADA, Tetsuya YAMAMOTO, Tomohiko ISHIDA, Masatoshi TANAKA, Toshihiro ZUSHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | research and development of high power double cladding fiber lasers have been widely performed for application to industrial welding and other unique systems. Compared to the conventional double cladding fiber with polymer cladding, the air hole type double cladding fiber in which the pumping guide is surrounded by microstructured air holes has some advantages such as a high numerical aperture (NA) and a skew suppression. We propose a new configuration of fiber laser which consist of an Yb-doped air hole type double cladding fiber and a wavelength selective filter (900nm transmission / 1000nm reflection) deposited directly on the fiber end facet. Laser output power of 558 W and slope efficiency of 74% for the LD pumping power are achieved. The laser resonator consisting of a high-reflection (HR) coating directly on one fiber end and the other flat polished end requires no reflective mirrors and simplifies the laser configuration. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Fiber Laser / Dielectric mirror |
| Paper # | LQE2008-10 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2008/5/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A characteristic of laser oscillation on Yb-doped air-hole type double clad fiber laser with HR coating |
| Sub Title (in English) | |
| Keyword(1) | Fiber Laser |
| Keyword(2) | Dielectric mirror |
| 1st Author's Name | Akihito SUZUKI |
| 1st Author's Affiliation | Mitsubishi Cable Industries, LTD() |
| 2nd Author's Name | Hisashi SAWADA |
| 2nd Author's Affiliation | Mitsubishi Cable Industries, LTD |
| 3rd Author's Name | Tetsuya YAMAMOTO |
| 3rd Author's Affiliation | Mitsubishi Cable Industries, LTD |
| 4th Author's Name | Tomohiko ISHIDA |
| 4th Author's Affiliation | Mitsubishi Cable Industries, LTD |
| 5th Author's Name | Masatoshi TANAKA |
| 5th Author's Affiliation | Mitsubishi Cable Industries, LTD |
| 6th Author's Name | Toshihiro ZUSHI |
| 6th Author's Affiliation | Mitsubishi Cable Industries, LTD |
| Date | 2008-05-23 |
| Paper # | LQE2008-10 |
| Volume (vol) | vol.108 |
| Number (no) | 51 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |