发明名称 |
Step-tunable external-cavity surface-emitting semiconductor laser |
摘要 |
A laser for delivering laser radiation at a selected one of a plurality of equally-spaced frequencies extending over a frequency range includes a laser resonator defined by two end mirrors. The resonator includes a surface-emitting semiconductor multilayer gain-structure in optical contact with one of the mirrors. A third mirror located in the laser resonator forms an etalon with that mirror. The third mirror is movable for adjusting a peak transmission frequency of the etalon to align with the selected frequency. The resonator end mirrors are spaced apart by an optical distance selected such that the frequency and frequency-spacing of possible longitudinal lasing modes of the resonator correspond with the plurality of equally-spaced frequencies. When the peak transmission frequency of the etalon is aligned with the selected frequency the laser resonator delivers radiation in a single longitudinal mode at the selected frequency. |
申请公布号 |
US6507593(B1) |
申请公布日期 |
2003.01.14 |
申请号 |
US20010963607 |
申请日期 |
2001.09.24 |
申请人 |
COHERENT, INC. |
发明人 |
SPINELLI LUIS A.;CHILLA JUAN L.;CAPRARA ANDREA;ATHERTON BRIGGS |
分类号 |
H01S5/04;H01S5/14;H01S5/183;(IPC1-7):H01S3/10 |
主分类号 |
H01S5/04 |
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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