A LD-Bar End-Pumped Nd: S-VAP Laser with a Multiple Reflection Beam Shaper
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- Akabane Yosuke
- Keio University
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- Utoh Ken-ichi
- Keio University
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- Nakanishi Akira
- Keio University
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- Kannari Fumihiko
- Keio University
Bibliographic Information
- Other Title
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- 多重反射ビーム整形光学系を用いたLD-bar端面励起Nd: S-VAPレーザ
- タジュウ ハンシャ ビーム セイケイ コウガクケイ オ モチイタ LD-bar
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Abstract
We developed an optical system that transforms a one-dimensional emission pattern of a 1-cm LD-bar into a two-dimensional spot size suitable of longitudinally pumping a solid-state laser with an excellent mode coupling efficiency. The LD-bar beams are collimated by a rod lens and a lens array in the direction perpendicular and transverse to the diode junction plane, respectively. A multiple reflection beam shaper is placed after the lens array to rearrange the entire beam profile from the linear to almost square. An aspheric condenser lens then produces a focused spot of _??_390μm x 220μm. We applied this shaped diode laser beam to pump a Nd: S-VAP laser. The optical distortion induced with thermal loading increases diffraction loss in the cavity. Significant decrease of the output laser power was observed as increasing the thermal load, together with the distortion in the output beam pattern.
Journal
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- IEEJ Transactions on Electronics, Information and Systems
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IEEJ Transactions on Electronics, Information and Systems 117 (4), 384-393, 1997
The Institute of Electrical Engineers of Japan
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Details 詳細情報について
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- CRID
- 1390282679584450304
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- NII Article ID
- 10002809843
- 130006843644
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- NII Book ID
- AN10065950
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- ISSN
- 13488155
- 03854221
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- NDL BIB ID
- 4171887
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed