Method for tuning fiber optic couplers and multiplexers

Details Method for tuning fiber optic couplers and multiplexers Method for tuning fiber optic couplers and multiplexers

1995-08-09

1997-07-29

Bovernick, Rodney B.

Optical waveguides

With optical coupler

Permanently fixed coupler

385 37, 385 43, 385 48, G02B 626

Patent

active

056528191

ABSTRACT:
A method for tuning fiber optic coupler and wavelength division multiplexer devices comprises the steps of fusing optical fibers having a refractive index responsive to ultraviolet radiation to form a coupling region having a coupling ratio dependent upon the refractive index, and subjecting the coupling region to ultraviolet radiation to adjust the coupling ratio to a predetermined value at a given operating wavelength.

REFERENCES:
patent: 5058979 (1991-10-01), Yamauchi
patent: 5367588 (1994-11-01), Hill et al.
patent: 5404415 (1995-04-01), Mori et al.
patent: 5459801 (1995-10-01), Snitzer
patent: 5491764 (1996-02-01), Hu et al.
W. X. Xie et al., "Experimental evidence of two types of photorefractive ects occurring during photoinscriptions of Bragg gratings within germanosilicate fibers", Optics Communications, 104, (1993, pp. 185-195.
P. J. Lemaire et al., "Technique for Achieving Ultrahigh UV Photosensitivity and Thermal Sensitivity in GeO.sub.2 Doped Optical Fibres", Electronics Letters, vol. 29, No. 13, 24 Jun. 1993, pp. 1191-1193 .

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