| 摘要 |
A super high resolution optical resonator comprising a Fabry-Perot cavity and an intracavity diffraction grating which is operated in a non-zero diffraction order. The diffraction grating is of transmission or reflection type, blazed, single or multiple order. The resonant cavity can comprise two independent mirrors, multiple mirrors, or an optical resonator based on an optical fiber and one or more intracavity diffraction gratings operated in non-zero diffraction order inserted between the two or more mirrors or portions of the fiber, respectively. In a preferred embodiment, the diffraction grating is not in contact with one of the mirrors or the optical fiber. In another preferred embodiment, the diffraction grating is in contact with one of the mirrors or the optical fiber. In another preferred embodiment, the diffraction grating is part of one of the mirrors or the optical fiber. The width of the resonance is reduced by more than two orders of magnitude compared to prior art optical resonators and all diffraction orders except one of the diffraction grating are suppressed.
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