Coherent light generators – Particular resonant cavity
Patent
1988-02-02
1989-08-22
Davie, James W.
Coherent light generators
Particular resonant cavity
372 19, 372 41, 372 75, H01S 305, H01S 098
Patent
active
048603040
ABSTRACT:
A solid state gain medium is disposed between two mirrors to form a resonant cavity, the cavity length selected so that the gain bandwidth of the gain medium is less than the frequency separation of the cavity modes. By selecting this cavity length, only a single longitudinal mode will oscillate when the laser operates in a single transverse mode. The microlaser is optically pumped by any appropriate source such as a semiconductor injection laser or laser array. Suitable gain media are Nd:YAG and Nd pentaphosphate.
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Davie James W.
Massachusetts Institute of Technology
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