| 摘要 |
A ring cavity laser has a polyhedral structure contoured by a plurality of planes, and includes a ring cavity having reflective faces formed by the planes of the polyhedral structure, and an active medium. The ring cavity laser is constructed such that there exists a three-dimensional light path among light paths of the ring cavity through which light pumped in the active medium travels when the light starts at a point on one reflective face, is reflected by each reflective face and returns to the starting point.
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