发明名称 |
Method and apparatus for coupling radiation from a stack of diode-laser bars into a single-core optical fiber |
摘要 |
A method of coupling laser-radiation into an optical fiber includes providing a stack of diode-laser bars and first and second parallel mirrors, the second mirror is selectively reflective only for one polarization plane of the laser-radiation. Each of the diode-laser bars includes at least two spaced-apart diode-laser emitters each emitting a plane-polarized beam of laser-radiation having a fast axis and a slow axis. The laser-radiation beams are collimated in the fast axis by a cylindrical lens located in front of each bar. In one arrangement the polarization orientation of one collimated beam from each diode-laser is rotated by 90 degrees and transmitted through the selectively-reflective mirror. The other collimated beam from each diode-laser bar is reflected onto the selectively-reflective mirror by the first mirror and reflected from the selectively-reflective mirror such that the reflected beam combines with the transmitted beam to form a combined beam. As many combined beams are formed as there are diode-laser bars in the stack. These combined beams are focused into an entrance face of the optical fiber.
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申请公布号 |
US7010194(B2) |
申请公布日期 |
2006.03.07 |
申请号 |
US20020266066 |
申请日期 |
2002.10.07 |
申请人 |
COHERENT, INC. |
发明人 |
ANIKITCHEV SERGUEI G.;REKOW MATHEW N. |
分类号 |
G02B6/34;G02B6/42;G02B27/28 |
主分类号 |
G02B6/34 |
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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