Laser light generating method and apparatus
AssigneeSony Corporation
InventorsYushi Kaneda, Yutaka Imai, Takeshi Kaneko, Tsutomu Sakashita
Life of this patent
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Abstract
A laser generating apparatus has a plurality of laser resonators and control loops for generating frequency locking signals independently for the respective laser resonators. A control signal generation circuit is provided so as to be common to the control loops. Control signals generated by the control signal generation circuit by frequency division are supplied to the respective control loops, whereby the phases of the laser resonators are locked to each other.
Claims16
A laser light generating method in a laser light generating apparatus comprising a plurality of laser resonators each having a controllable resonator optical path length, and a plurality of control loops for generating frequency locking signals independently for the respective laser resonators, the laser light generating method comprising the steps of:
- providing a control signal generation circuit so that it is common to the plurality of control loops;
- and
- causing the control signal generating circuit to generate control signals by frequency division, and supplying the generated control signals to the respective control loops, to thereby lock phases of the respective laser resonators to each other and generate laser light.
A laser light generating apparatus comprising:
- a plurality of laser resonators each having controllable resonator optical path length;
- a plurality of control loops for generating frequency locking signals independently for the respective laser resonators;
- and
- a control signal generation circuit common to the plurality of control loops, for generating control signals by frequency division and supplying the generated control signals to the respective control loops, whereby phases of the respective laser resonators are locked to each other.
Dependencies are inferred from the claim text.