Technique utilizing stress-induced birefringence for reducing po

Details Technique utilizing stress-induced birefringence for reducing po Technique utilizing stress-induced birefringence for reducing po

1993-04-30

1994-05-03

Healy, Brian

Optical waveguides

Temporal optical modulation within an optical waveguide

385 27, 385 31, 385 39, 385147, 359181, 359188, 359246, 359256, 359341, 359337, 359339, 372 27, 372 6, G02B 610, G02B 530, H01S 310

Patent

active

053095308

ABSTRACT:
A technique for reducing signal degradation and fading within a long optical transmission system by minimizing polarization dependent hole-burning ("PDHB") through the cyclic stressing of a birefringent optical fiber to modulate the SOP of an optical signal launched into the transmission system. This effectively reduces the degree of polarization of the launched optical signal, without degrading the noise and dispersion characteristics of the signal. The modulation frequency of the SOP is chosen to ensure that the launched signal does not remain at a particular SOP long enough to anisotropically saturate any optical amplifier employed within the transmission system, and give rise to PDHB.

REFERENCES:
patent: 4389090 (1983-06-01), LeFevre
patent: 4762384 (1988-08-01), Hegarty
patent: 4805977 (1989-02-01), Tamura et al.
patent: 4923291 (1990-05-01), Edagawa et al.
patent: 4988169 (1991-01-01), Walker
patent: 5031236 (1991-07-01), Hodgkinson et al.
patent: 5034679 (1991-07-01), Henderson et al.
patent: 5043996 (1991-08-01), Nilsson et al.
patent: 5101461 (1992-03-01), Nakajima
patent: 5127066 (1992-06-01), Poggiolini
patent: 5191631 (1993-03-01), Rosenberg
patent: 5218652 (1993-06-01), Lutz
patent: 5223705 (1993-06-01), Aspell et al.
"Observation of New Polarisation Dependence Effects in Long Haul Optically Amplified System" M. G. Taylor, OFC '93 Post-deadline paper, Feb. 1993.
"Spectral Gain Hole-Burning at 1.53 .mu.m in Erbium-Doped Fiber Amplifiers" E. Desurvire, et al. IEEE Photonics Technology Letters, vol. 2, No. 4, Apr. 1990.
"Polarized Fluorescence Line Narrowing Measurements of Nd Laser Glasses: Evidence of Stimulated Emission Cross Section Anisotropy" D. W. Hall, Appl. Phys. Lett., vol. 42, No. 2, Jan. 15, 1983. pp. 157-159.
"Spectral and Polarization Hold Burning in Neodymium Glass Lasers" D. W. Hall et al. IEEE J. of Quantum Electronics, vol. QE-19, No. 11, Nov. 1983, pp. 1704-1717.

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