发明名称 |
DIODE PUMPED LASER WITH STRONG THERMAL LENS CRYSTAL |
摘要 |
A high power, highly efficient laser that produces a polarized, round diffraction limited gaussian beam is disclosed. A strong thermal lens laser crystal (24) with controlled ellipticity, is mounted in a laserhead (10) and pumped by a fiber-bundle-coupled (22) diode source (18). The pump beam diameter in the crystal is greater than the crystal's TEM00 mode diameter. The laser operates well over a large range of pump powers. Its slope efficiency in the TEM00 mode is greater than 40 %, with an overall efficiency greater than 25 %. One of the lasing crystals used is Nd:YVO4. This material exhibits high gain and a short upper state lifetime. These properties make it attractive in designing a Q-switched laser, or one that is insensitive to optical feedback.
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申请公布号 |
WO9521477(A1) |
申请公布日期 |
1995.08.10 |
申请号 |
WO1995US01259 |
申请日期 |
1995.01.31 |
申请人 |
SPECTRA-PHYSICS LASERS, INC. |
发明人 |
NIGHAN, WILLIAM, L., JR.;KEIRSTEAD, MARK, S. |
分类号 |
H01S3/08;H01S3/094;H01S3/0941;H01S3/16;(IPC1-7):H01S3/094 |
主分类号 |
H01S3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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