Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
119 words
A fiber optic device, comprising: a pair of optical fibers (12a, 12b), juxtaposed at an interaction region (32) having an effective interaction length, one of said fibers (12b) doped with material which will lase to produce light at a first light wavelength; means (101, 103) for supplying pumping illumination to the other (12a) of said pair of fibers (12a, 12b) at a second light wavelength; and said pair of fibers (12a, 12b) having a wavelength-dependent coupling length at said interaction region (32), said effective interaction length being an even multiple of the coupling length at one of said first and second wavelengths and an odd multiple of the coupling length at the other of said first and second wavelengths.
Claim 2
Dependent Claim
119 words
A fiber optic device, comprising: a pair of optical fibers (12a, 12b), juxtaposed at an interaction region (32) having an effective interaction length, one of said fibers (12b) doped with material which will lase to produce light at a first light wavelength; means (101, 103) for supplying pumping illumination to the other (12a) of said pair of fibers (12a, 12b) at a second light wavelength; and said pair of fibers (12a, 12b) having a wavelength-dependent coupling length at said interaction region (32), said effective interaction length being an even multiple of the coupling length at one of said first and second wavelengths and an odd multiple of the coupling length at the other of said first and second wavelengths.
Claim 3
Dependent Claim
36 words
A fiber optic device, as defined in Claim 1, wherein said device operates as a fiber optic amplifier, said one of said fibers (12b) doped with material which will lase transmitting a signal to be amplified.
Claim 4
Dependent Claim
46 words
A fiber optic device, as defined in Claim 2, wherein said effective interaction length is an even multiple of the coupling length at the wavelength of said signal to be amplified and an odd multiple of the coupling length at the wavelength of said pumping illumination.
Claim 5
Dependent Claim
25 words
A fiber optic device, as defined in Claim 1, wherein said interaction region (32) provides evanescent field coupling between said pair of optical fibers (12a,12b).
Claim 6
Dependent Claim
19 words
A fiber optic device, as defined in Claim 1, wherein said one of said fibers (12b) comprises ND:YAG material.
Claim 7
Dependent Claim
26 words
A fiber optic device, as defined in Claim 5, wherein said pumping illumination is at a wavelength at which said ND:YAG material exhibits high energy absorption.
Claim 8
Dependent Claim
40 words
A fiber optic device, as defined in Claim 1, wherein said pair of optical fibers (12a, 12b) are arcuately curved, and wherein said effective interaction length is a function of the radius of curvature of said arcuate fibers (12a, 12b).
Claim 9
Dependent Claim
32 words
A fiber optic device, as defined in Claim 1, wherein said pair of juxtaposed optical fibers (12a, 12b) are laterally offset from one another to select said first and second optical wavelengths.
Claim 10
Dependent Claim
44 words
A fiber optic device, as defined in Claim 1, wherein said pair of optical fibers (12a, 12b) are arcuate and wherein the radius of said arcuate optical fibers (12a, 12b) is selected to define the frequency difference between said first and second optical wavelengths.
Claim 11
Dependent Claim
38 words
A fiber optic device, as defined in Claim 1, wherein said fibers (12a, 12b) are arcuate and wherein said effective interaction length is a function of the square root of the radius of said arcuate fibers (12a, 12b).