发明名称 |
GEODESIC DEVICE COMPRISING A LASER SOURCE |
摘要 |
A laser source (2) is used in a geodesic device (1) to improve the emission of laser light, in which the laser diodes (2b) emitting multimodal radiation are influenced by a mode-selective component (2d) such that the laser radiation emitted by the laser source (2) has monomodal character. An edge emitter (2b) or a vertical semiconductor emitter with an external cavity, is hence used, in which a mode selective component (2d) is arranged, for example, a monomode fibre or resonator mirror, which has the effect of a mode-selective resonator construction. Components with negative dispersion can be used for pulse compression to compensate for the greater pulse duration generated by the lengthened cavity. |
申请公布号 |
WO2005029114(A2) |
申请公布日期 |
2005.03.31 |
申请号 |
WO2004EP10478 |
申请日期 |
2004.09.17 |
申请人 |
LEICA GEOSYSTEMS AG;BRAUNECKER, BERNHARD;GAECHTER, BERNHARD |
发明人 |
BRAUNECKER, BERNHARD;GAECHTER, BERNHARD |
分类号 |
G01C15/00;G01S7/481;G01S7/484 |
主分类号 |
G01C15/00 |
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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