| 简介 |
PROBLEM TO BE SOLVED : To provide a fiber ring laser useful for angular velocity instrumentation, distance instrumentation, surface topography instrumentation, display, image projection, high precision machining, and the like, and directly laser oscillating a short wavelength, and also to provide a small fiber ring laser gyroscope utilizing it.
SOLUTION : In a fiber ring laser having a pump source which excites a gain medium, at least one closed ring resonator (ring laser resonator), and a fiber added with rare earth as the gain medium in the ring laser resonator, a fiber having a core to which at least one kind of rare earth selected from Pr, Nd, Sm, Eu, Tb, Dy, Ho, Er, or Tm is used as the fiber with rare earth added thereto, and the oscillation wavelength of laser is a short wavelength of less than 1 μm.
COPYRIGHT : (C)2010, JPO&INPIT |
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