Optical waveguides – Optical fiber waveguide with cladding
Patent
1989-07-17
1991-10-15
Lee, John D.
Optical waveguides
Optical fiber waveguide with cladding
385126, G02B 622
Patent
active
050568884
ABSTRACT:
A single-mode, single-polarization optical fiber ("PZ fiber") can have a large single-polarization wavelength bandwidth when .eta. (as herein defined) for one symmetry axis is positive when calculated from the refractive index profile determined with one of two orthogonal orientations of polarized light and is negative when calculated from the refractive index profile determined with the other orientation, and for each other symmetry axis of the novel optical fiber .eta. is positive for both orientations of plane polarized light. Preferably the absolute values for .eta. when positive and .eta. when negative are about equal for said one symmetry axis. A preferred PZ fiber can be formed by depositing siliceous layers onto the interior surface of a hollow substrate tube of quartz to provide a preform. After forming two parallel flat faces in its outer surface, the preform is pulled to form a PZ fiber having an ellipitcal stress-applying region.
REFERENCES:
patent: 4354736 (1982-10-01), Maklad et al.
patent: 4480897 (1984-11-01), Okamoto et al.
patent: 4493530 (1985-01-01), Kajioka et al.
patent: 4515436 (1985-05-01), Howard et al.
patent: 4717225 (1988-01-01), Feth et al.
patent: 4896942 (1990-01-01), Onstott et al.
patent: 4913521 (1990-04-01), Tajima et al.
Brochure entitled "York Fiber Polarizer" from York V.S.O.P., Burbank, CA (Jun. 1987).
Varnham et al., "Single-Polarisation Operation of Highly Birefringent Bow-Tie Optical Fibres," Electronics Letters, vol. 19 (1983) 679-680.
J. R. Simpson, R. H. Stolen, F. M. Sears, W. Pleibel, J. B. Macchesney and R. E. Howard, "A Single-Polarization Fiber," Journal of Lightwave Technology, vol. Lt-1, No. 2 (Jun. 1983) 370-374.
J. R. Simpson, R. H. Stolen, W. Pleibel, A. J. Ritger and H. T. Shang, "Properties of Rectangular Polarizing and Polarization Maintaining Fiber," Proc. SPIE, vol. 719 (1986) 220-225.
R. H. Stolen, W. Pleibel, J. R. Simpson, W. A. Reed and G. Mitchell, "Short W-Tunnelling Fibre Polarisers," Electronics Letters, vol. 24, No. 9, (Apr. 28, 1988) 524-525.
Katsunari Okamoto, Toshihito Hosaka and Juichi Noda, "High-Birefringence Polarizing Fiber with Flat Cladding," Journal of Lightwave Technology, vol. Lt-3, No. 4 (Aug. 1985) 758-762.
Katsunari Okamoto, "Single-polarization Operation in Highly Birefringent Optical Fibers," Applied Optics, vol. 23, No. 15 (Aug. 1, 1984) 2638-2641.
J. R. Onstott, L. J. Donalds, and R. C. Mikkelson, "Polarization Controlling Optical Fibers," SPIE, vol. 719, Fiber Optic Gyros: 10th Anniversary Conference, Bellingham: SPIE 1986.
Messerly Michael J.
Mikkelson Raymond C.
Onstott James R.
Buckingham Stephen W.
Griswold Gary L.
Heartney Phan T.
Kirn Walter N.
Lee John D.
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