| CPC H01S 3/1307 (2013.01) [H01S 3/10053 (2013.01); H01S 3/1304 (2013.01); H01S 3/1305 (2013.01)] | 18 Claims |
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1. A laser device comprising:
a light distributor distributing reference laser light into local oscillation light and a plurality of light signals;
a plurality of optical phase controllers generating a plurality of phase control light signals by performing variable phase control on each of the plurality of light signals in accordance with a plurality of input light phase control signals;
a plurality of light amplifiers generating a plurality of amplified light signals by amplifying the plurality of phase control light signals;
a front optical system forming a plurality of light beams by collimating the plurality of amplified light signals and generating a plurality of partially reflected light signals propagating in a direction opposite to a propagation direction of the plurality of light beams by partially reflecting the plurality of amplified light signals;
a reflective optical system multiplexing the local oscillation light with the plurality of partially reflected light signals by reflecting the local oscillation light input from the light distributor in a direction of the front optical system;
a plurality of photodetectors converting each of a plurality of interference light signals generated by multiplexing of the plurality of partially reflected light signals and the local oscillation light into a plurality of electric signals; and
a plurality of phase locked loops generating, as the plurality of light phase control signals, a plurality of control signals for causing the plurality of optical phase controllers to compensate for phase errors between the plurality of electric signals and a reference signal.
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