Praseodymium laser system
AssigneeRutgers University
InventorsYasutake Ohishi, Elias Snitzer
Life of this patent
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Abstract
A system for producing an optical gain. The system includes an optical fiber having a core and a cladding, the core being doped with Pr.sup.3+ ; and a source producing light to energize the Pr.sup.3+ to the .sup.1 G.sub.4 state and produce an optical gain by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition at a wavelength in the range of 1.25 to 1.34 microns. The system also includes a method of making and a method of using the same.
Claims81
A system for producing an optical gain, the system comprising:
- an optical fiber having a core and a cladding, the core being doped with Pr.sup.3+ ;
- and
- a light source producing light at a wavelength in the range of from about 0.94 to 1.07 microns to energize the Pr.sup.3+ to the .sup.1 G.sub.4 state and produce an optical gain by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition for light at a wavelength in the range of 1.25 to 1.34 microns.
A method for making a laser system to produce an optical gain, the method comprising the steps of:
- forming an optical fiber having a core and a cladding, the core being doped with Pr.sup.3+ ;
- connecting the optical fiber core to a light source providing light at a wavelength in the range of from about 0.94 to 1.07 microns operable to energize the Pr.sup.3+ to the .sup.1 G.sub.4 state to produce an optical gain by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition for light at a wavelength in the range of 1.25 to 1.34 microns.
A method for using a laser system to produce an optical gain, the method comprising the step of energizing a core doped with Pr.sup.3+ in a cladding of an optical fiber with a light at a wavelength in the range of from about 0.94 to 1.07 microns to energize the Pr.sup.3+ to the .sup.1 G.sub.4 state to produce an optical gain by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition for light at a wavelength in the range of 1.25 to 1.34 microns.
A composition for the manufacture of a core for an optical fiber capable of producing an optical gain by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition at a wave length of 1.25 to 1.34 microns comprising:
- A. Pr.sup.3+.
- B. A host material selected from the group consisting of:
- 1. 50.ltoreq.X halide.ltoreq.55
- 16.ltoreq.BaF halide.ltoreq.24
- 16.ltoreq.Q halide.ltoreq.24
- 3.ltoreq.La halide.ltoreq.5
- 2.ltoreq.Z halide.ltoreq.4,
- wherein X is selected from the group consisting of Zr, Ha, Th, Bi, Pb, and any combination thereof;
- Q is selected from the group consisting of Na, Ag, Rb, Ce, Tl, or a combination thereof;
- and Z is selected from the group consisting of Al, Y, Gd, or any combination thereof;
- 2. A chalcogenide, a chalco-halide and combinations thereof;
- and
- 3. A halide of a metal selected from the group consisting of Cd, Pb, K, Zn and any combination thereof.
A system for producing fluorescence comprising:
- an optical fiber having a core and a cladding, the core being doped with Pr.sup.3+ ;
- and a light source producing light at a wave length in the range of from about 0.94 to 1.07 microns to energize the Pr.sup.3+ to the .sup.1 G.sub.4 state and produce fluorescence by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition for light at a wavelength in the range of 1.25 to 1.34 microns.
A method for making a system to produce fluorescence, said method comprising the steps of:
- forming an optical fiber having a core and a cladding, the core being doped with Pr.sup.3+ ;
- connecting the optical core to a light source providing light at a wavelength in the range of from about 0.94 to 1.07 microns operable to energize the Pr.sup.3+ to the .sup.1 G.sub.4 state and produce fluorescence by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition for light at a wavelength in the range of 1.25 to 1.34 microns.
A composition for the manufacture of a core for an optical fiber capable of producing an optical gain by a .sup.1 G.sub.4 -.sup.3 H.sub.5 transition at a wavelength of 1.2 to 1.3 microns comprising:
- (A) A host material selected from the group consisting of those having the composition:
- 50.ltoreq.X halide.sub.4 .ltoreq.55
- 16.ltoreq.BaF halide.sub.2 .ltoreq.24
- 16.ltoreq.Q halide.ltoreq.24
- 3.ltoreq.LaF halide.sub.3 .ltoreq.5
- 2.ltoreq.Z halide.sub.3 .ltoreq.4,
- wherein X is selected from the group consisting of Zr, Ha, Th, Bi, Pb, and any combination thereof;
- Q is selected from the group consisting of Na, Ag, Rb, Ce, Tl, or a combination thereof;
- and Z is selected from the group consisting of Al, Y, Gd, or any combination thereof;
- and
- (B) Pr.sup.3+.
Dependencies are inferred from the claim text.