| 摘要 |
PROBLEM TO BE SOLVED: To provide a laser light-emitting device which can restore double resonance rapidly, even if synchronization of an optical resonator is out of place by external disturbances, etc. SOLUTION: A laser light-generating device 10 has a laser light source 1 with a frequency control means which controls the frequency of laser light L1 , a laser light source 2 which emits laser light L2 whose wavelength is shorter than that of the laser light L1 , an optical resonator 5 which resonates each laser light at once and generates laser light L3 having frequency which is a sum or a difference by a non-linear optical crystal element 25, an optical path length adjustment means which adjusts an optical path length of the optical resonator 5 and an error signal detection means which converts reflected light L4 from the optical resonator 5 to an error signal of each wavelength. An optical path length adjustment means is controlled, based on an error signal of a wavelength of the laser light L1 to be synchronized to the laser light L1 , and a frequency control means is controlled, based on an error signal of a wavelength of the laser light L2 , so that the laser light L2 resonates simultaneously inside the optical resonator 5. |
