Title:
位相同期方法および位相同期装置
Document Type and Number:
Japanese Patent JP7295460
Kind Code:
B2
Abstract:
The present invention provides an optical phase synchronization method characterized by involving applying a small phase modulation signal (dither signal) to local oscillator light, acquiring an error signal that is dependent on a phase shift, and controlling the phase shift. The present invention further provides an optical phase synchronization method characterized by involving inducing a specific phase pattern in dummy pulses in an optical resonator using injection light, applying phase modulation to the local oscillator light, and thereby acquiring a part of the measurement result of the dummy pulses as the error signal. The present invention is further characterized by arranging calculation pulses and phase synchronization dummy pulses in a distributed manner (for example, alternately) and increasing a pulse width using a narrow band electrical filter.
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Inventors:
Takuya Ikuta
Takuhiro Inagaki
Kensuke Inaba
Honjo Toshimori
Hiroki Takei
Takuhiro Inagaki
Kensuke Inaba
Honjo Toshimori
Hiroki Takei
Application Number:
JP2021541877A
Publication Date:
June 21, 2023
Filing Date:
August 28, 2019
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
G02F2/00
Domestic Patent References:
| JP2015163922A |
Foreign References:
| US20140016168 | ||||
| US20170146686 |
Attorney, Agent or Firm:
Patent Attorney Tani / Abe Patent Office
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