Title:
OPTICAL FREQUENCY STABILIZING DEVICE
Document Type and Number:
Japanese Patent JP3031589
Kind Code:
B2
Abstract:
PURPOSE: To stabilize respective frequencies all together with high accuracy for numbers of carrier light sources whose frequencies differ from each other.
CONSTITUTION: A pulse light is made incident on an optical loop circuit 4 from a frequency reference light source 1 whose stimulation frequency is stabilized and a prescribed frequency shift is imparted to a pulse light at every circulation of the optical loop circuit 4 and the frequency of carrier light sources (semiconductor lasers LD1-LDn) is stabilized in time division by a pulse light string whose frequency is changed at every propagation delay time by one circulation obtained from the frequency shift.
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Inventors:
Kaoru Shimizu
Yahei Oyamada
Tsuneo Horiguchi
Yahei Oyamada
Tsuneo Horiguchi
Application Number:
JP15525492A
Publication Date:
April 10, 2000
Filing Date:
June 15, 1992
Export Citation:
Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H04J14/00; G02F2/02; H01S3/10; H01S5/068; H04B10/07; H04B10/516; H04B10/61; H04J1/00; H04J14/02; (IPC1-7): G02F2/02; H01S3/10; H04B10/04; H04B10/06; H04B10/142; H04B10/152; H04J14/00; H04J14/02
Domestic Patent References:
| JP5232540A |
Other References:
Ｅｌｅｃｔｒｏｎｉｃｓ Ｌｅｔｔｅｒｓ，Ｖｏｌ．２６ Ｎｏ．１（４ｔｈ Ｊａｎｕａｒｙ １９９０）ｐｐ．２８−２９
Attorney, Agent or Firm:
Naotaka Ide (1 person outside)