| 摘要 |
PROBLEM TO BE SOLVED: To obtain a compact optical phase synchronization laser which can achieve stable phase synchronization, without mounting the same number of receivers as that of the output light.SOLUTION: An optical frequency shifter 4 adjusts the frequency of N signal light branched by N branch light splitters 3, according to a phase control signal output from a phase control circuit 13. An optical phase modulator 5 modulates the phase of N signal light by using N dithering signals of different frequency output from a frequency discrimination circuit 10. A collimator 6 outputs the N signal light, subjected to phase modulation by the optical phase modulator 5, while collimating. |
