| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser optic system (1) performing frequency conversion in a resonator. SOLUTION: The laser optic system (1) has a first path (2) comprising a first reflector and an output coupler (4), a second path (6) comprising a second reflector (8), a frequency converter (9), and the output coupler (4). The output coupler (4) is formed as a prism (5) in which output beams (10) subjected to the frequency conversion are incident into the prism and coupled therein, and reflected inward on the total reflection surface (11), and then separated and emitted from a separation emitting face (12) in the direction of an optical axis (13) in such a manner that an optical path (13) of the beam coincides with a main axis (3) of the first path (2). By using the prism (5), the beam can be separated and emitted in the direction of the optical axis (13) at a reduced cost without needing an additional mirror. At the same time, a cost for aligning a relative position of optically functional faces is reduced. COPYRIGHT: (C)2004,JPO&NCIPI
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