Optical fibre, waveguide, and optical active device

Details Optical fibre, waveguide, and optical active device Optical fibre, waveguide, and optical active device

1993-08-11

1995-07-04

Bovernick, Rodney B.

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

372 6, 385129, G02B 600

Patent

active

054308240

ABSTRACT:
An optically active device comprising an optical fiber, a light source and an optical device is disclosed. The optical fiber comprises a core made of an optical functioning glass doped with Pr.sup.3+ as an active ion and transmits light at a first wavelength. The light source generates excitation light at a second wavelength shorter than the first wavelength. The optical device directs the excitation light from the light source into the optical fiber. Then, Pr.sup.3+ in the core of the optical fiber is stimulated to emit light at the second wavelength. As a result, an optical function such as optical amplification can be effected at the second wavelength.

REFERENCES:
patent: 4848998 (1989-07-01), Snitzer et al.
R. M. Percival et al, "Characterization of Spontaneous and Stimulated Emission from Praseodymium (Pr3+) Ions Doped Into a Silica-Based Monomode Optical Fiber", IEEE Journal Of Quantum Electronics, vol. 25, No. 10, Oct. 1989, pp. 2119-2123, New York.
K. Kubodera et al, "A slab waveguide laser formed of glass-clad LiNdP4012", J. Appl. Phys., vol. 49, No. 1, Jan. 1978, pp. 65-68.
M. V. Babukova et al, "Investigation of neodymium silicate glass diffused waveguides", Soviet Journal Of Quantum Electronics, vol. 15, No. 9, Sep. 1985, pp. 1304, 1305.
R. Wolfe et al, "Single mode magneto-optic waveguide films", Appl. Phys. Lett., vol. 48, No. 8, 24 Feb. 1986, pp. 508-510.

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