发明名称 |
Broad-area MOPA device with leaky waveguide beam expander |
摘要 |
A coherent light source, such as a laser oscillator and a monolithic MOPA device, and a broad area light amplifying device, all characterized by having a leaky waveguide beam expander coupled thereto for expanding a single mode beam into a wide light beam in a coherent manner. The beam expander comprises an elongated antiguide core of a first refractive index and a radiated-wave receiving region of a higher refractive index to receive lightwaves laterally radiated from the antiguide core. This beam expander can be located at an output end of a single mode laser oscillator to receive and expand the beam, at an input end of a broad area optical power amplifier to allow the amplifier to accept a narrow input beam, or between the laser oscillator and power amplifier in a MOPA device. The beam expander elements can also be located partially or entirely within the resonant optical cavity of a laser oscillator.
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申请公布号 |
US5349602(A) |
申请公布日期 |
1994.09.20 |
申请号 |
US19930031684 |
申请日期 |
1993.03.15 |
申请人 |
SDL, INC. |
发明人 |
MEHUYS, DAVID G.;O'BRIEN, STEPHEN;WELCH, DAVID F. |
分类号 |
G02B6/12;G02B6/125;G02B6/30;H01S3/00;H01S5/00;H01S5/026;H01S5/10;H01S5/12;H01S5/125;H01S5/187;H01S5/50;(IPC1-7):H01S3/08 |
主分类号 |
G02B6/12 |
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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