Coherent light generators – Optical fiber laser
Reexamination Certificate
2006-01-17
2006-01-17
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Optical fiber laser
C372S010000, C372S025000, C372S026000
Reexamination Certificate
active
06987783
ABSTRACT:
An optically-active air-clad fiber (30) includes a core (34, 84) that facilitates doping with an ion optically excitable and having a three-level optical transition when pumped at a first end (28) of an optical cavity (46) by a multimode pump source (72) at a pump wavelength (64) for lasing at a signal wavelength (66) different than the pump wavelength (64) at a second end (29) of the optical cavity (46), the core (34, 84) having a refractive index, wherein the core (34, 84) is transformed from the first end to proximate the second end (29) thereof such that the optically-active fiber (30) is multimode at the pump wavelength proximate to the first end (28), and is single-mode at the signal wavelength proximate to the second end (29). An air-clad (36, 86) surrounds at least one portion of the core (34, 84) and has a lower effective refractive index than the refractive index of the core (34, 84).
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Fajardo James C.
Gallagher Michael T.
Liu Anping
Peng (Ying) Lisa
Truesdale Carlton M.
Agon Juliana
Corning Incorporated
Harvey Minsun Oh
Nguyen Dung (Michael) T.
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