Optical fiber, optical amplification/oscillation device,...

Details Optical fiber, optical amplification/oscillation device,... Optical fiber, optical amplification/oscillation device,...

2005-05-24

2005-05-24

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

Having particular optical characteristic modifying chemical...

Of waveguide core

C385S123000, C385S144000, C359S341100, C372S006000

Reexamination Certificate

active

06898366

ABSTRACT:
Disclosed herein is an optical fiber including a core doped with first metal ions; and a cladding formed so as to surround the core and doped with second metal ions selected so that the absorption coefficient in a transition wavelength band of first transition of the first metal ions is greater than the absorption coefficient in a transition wavelength band of second transition of the first metal ions. The amplification of light due to the first transition is suppressed, and at least the amplification or oscillation of light due to the second transition is effected. Also disclosed are an optical amplification/oscillation device, a laser light generating device, and a laser display unit, and a color laser display unit each employing the optical fiber.

REFERENCES:
patent: 5668659 (1997-09-01), Sakamoto et al.
patent: 63184386 (1988-07-01), None
patent: 08152531 (1996-06-01), None
A High Gain, High Output Saturation Power Pr3+-Doped Fluoride Amplifier Operating at 1.3μm, Yasutake Ohishi et al, IEEE Photonics Technology Letters, vol. 3, No. 3, Aug. 1991, pp. 715-717.
Optimization of Pr3+:ZBLAN Fiber Amplifiers, B. Pedersen et al, IEEE Photonics Technology Letters, vol. 4, No. 5, May 1992, pp. 446-448.
Schott Glass Technologies, Inc. Products and Applications, Rare Earth Doped Filter Glass, 1999, 4 pages.
“Erbium-doped filter amplifiers, fundamentals and technology”, P.C. Becker et al, Optical Fiber Fabrication, Academic Press 1999, pp. 26, 74, 51 and 413.

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