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US 4,860,304 AGranted
Solid state microlaser
AssigneeMassachusetts Institute of Technology
InventorAram Mooradian
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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.
Claims13
Solid state, optically pumped microlaser comprising:
- a solid state gain medium disposed between two mirrors, the distance between the mirrors selected so that the gain bandwidth of the gain medium is less than the frequency separation of the cavity modes.
Dependencies are inferred from the claim text.