| 摘要 |
PROBLEM TO BE SOLVED: To achieve further compactness of atomic clocks while maintaining accuracy. SOLUTION: An atomic clock is provided with: a cell 110 in which atomic gas is sealed inside; a laser diode 120 for oscillating a laser beam which is made incident into the cell 110 to excite the atomic gas; a photo-detector 130 for receiving a laser beam transmitted through the cell 110; a first waveguide 140 for introducing a laser beam oscillated from the laser diode 120 into the cell 110; and a second waveguide 150 for introducing a laser beam transmitted through the cell 110 to the photo-detector 130. The first waveguide 140 is provided with a reflecting plane 141 formed in such a way that the laser beam oscillated from the laser diode 120 becomes incident at an angle of incidence of 45°. The second waveguide 150 is provided with a reflecting plane 151 formed in such a way that the laser beam transmitted through the cell 110 becomes incident at an angle of incidence of 45°. COPYRIGHT: (C)2007,JPO&INPIT
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