Title:
【発明の名称】方形光パルス発生器
Document Type and Number:
Japanese Patent JP2866198
Kind Code:
B2
Abstract:
PCT No. PCT/GB90/01422 Sec. 371 Date Mar. 25, 1992 Sec. 102(e) Date Mar. 25, 1992 PCT Filed Sep. 14, 1990 PCT Pub. No. WO91/04593 PCT Pub. Date Apr. 4, 1991.An all-optical fibre Sagnac antiresonant interferometer (2) is formed from an optical fibre having a non-linear refractive index. The coupler (8) is a dichroic coupler coupling equal portions of a cw optical signal at 1.53 mu m from laser (16) to ports (14 and 16) and all of a pulsed optical signal from laser (20 ) to port (14). The intensity of the pulsed optical signal is sufficient to provide a relative phase shift in the counter propagating 1.53 mu m signals. The loop (6) is longer than the inverse of the absolute difference in group delays of the cw and pulsed optical so causing a square optical pulse at 1.53 mu m to be switched to port (12) of the coupler.
Inventors:
DOORAN NIKORASU JON
NERUSON BURAIAN PEETAA
BURO KEISU JEIMUZU
NERUSON BURAIAN PEETAA
BURO KEISU JEIMUZU
Application Number:
JP51291290A
Publication Date:
March 08, 1999
Filing Date:
September 14, 1990
Export Citation:
Assignee:
BURITEITSUSHU TEREKOMYUNIKEESHONZU PLC
International Classes:
G02B6/28; G02F1/35; H01S3/00; H01S3/10; (IPC1-7): G02F1/35
Attorney, Agent or Firm:
Takehiko Suzue (3 outside)