Optical coupler utilizing low or zero birefringence optical fibe

Details Optical coupler utilizing low or zero birefringence optical fibe Optical coupler utilizing low or zero birefringence optical fibe

1986-01-15

1988-07-12

Sikes, William L.

350 9629, 350 9630, 350320, 65 311, 65 41, 65 42, G02B 626, C03B 2320

Patent

active

047565896

ABSTRACT:
Polarization beam splitters/combiners or polarization insensitive beam splitters/combiners are manufactured from low or zero birefringence single mode optical fibre, rather than high birefringence fibre, by using a differential pulling technique to induce the appropriate amount of form birefringence, the fibres being stretched further than hitherto.

REFERENCES:
patent: 4377403 (1983-03-01), McLandrich
patent: 4591372 (1986-05-01), Bricheno et al.
patent: 4612028 (1986-09-01), Abebe et al.
patent: 4615582 (1986-10-01), Lefevre et al.
patent: 4632513 (1986-12-01), Stowe et al.
patent: 4647146 (1987-03-01), Karr, III et al.
Barlow et al., "Birefringence and Polarization Mode-dispersion in Spun Single Mode Fibers" Applied Optics vol. 20, No. 17 9/81 pp. 2962-2968.
Payne et al., "Development of Low and High Birefringence Optical Fibers" IEEE J. of Quant. Elect. vol. QE-18 No. 4 4/82 pp. 477-487.
T. Bricheno and A. Fielding, "Stable Low-Loss Single-Mode Couplers", Electronics Letters, 15th Mar. 1984, vol. 20, No. 6, pp. 230-232.

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