| 摘要 |
The laser has an active medium (14), a resonant cavity (12) delimited by two mirrors (8, 16), and insulating and coaxial rings (24, 30, 32) having same inner and outer diameters. The total thickness of the rings is such that the resonant cavity has an optical length of k*lambda , where k>=2, in a central part (P1), and an optical length of (k-1)*lambda in a tubular part (P2), where lambda is the wavelength at which the laser emits and detects light. Independent claims are also included for the following: (a) a three-dimensional telemeter (b) a light transceiver component (c) a bidirectional optical connection. |
