Fiber for optical power amplification and/or optical power generation
A fluid filled fiber for a quasi-phase matched generator and a laser incorporating such a fluid filled fiber. The liquid filled fiber has charge transfer molecules dissolved in a solvent. In another embodiment, the liquid of the LF fiber comprises or consists essentially of highly polar liquids and/or charge transfer molecules having relatively high molecular dipole values. The liquid filled fiber is usable with a laser for differential frequency generation.
1 . An elongate liquid filled fiber for differential frequency generation in conjunction with a laser source and pump operably associated therewith, the liquid filled fiber comprising:
an external cladding surrounding a polar liquid, the fiber having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 1 when subjected to an applied voltage of 10 kV per mm to 100 kV/mm with a pump power from 25 W to 800 W.
2 . A liquid filled fiber according to claim 1 wherein the ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS is greater than 3.
3 . A liquid filled fiber according to claim 1 wherein the ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS is greater than 10.
4 . A liquid filled fiber according to claim 1 wherein the liquid comprises a polar solvent suitable for optical power amplification.
5 . A liquid filled fiber according to claim 4 wherein the liquid further comprises a charge transfer molecule solvent suitable for optical power amplification and optical power generation.
6 . A liquid filled fiber according to claim 1 wherein n core >n cladding .
7 . A liquid filled fiber according to claim 1 wherein the applied voltage of ranges from 10 KV per mm to 50 kV/mm.
8 . An elongate liquid filled fiber for differential frequency generation in conjunction with a dual electrode laser source and pump operably associated therewith, the liquid filled fiber comprising:
an external cladding surrounding a polar liquid, the fiber having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 2 when subjected to an applied voltage of 10 kV per mm to 100 kV/mm with a pump power from 25 W to 1000 W.
9 . A liquid filled fiber according to claim 8 wherein the laser has an electrode separation D and a wavelength Λ and
2.3
≤
Λ
D
≤
666.7
.
10 . A liquid filled fiber according to claim 9 wherein
3
≤
Λ
D
≤
650.
11 . A liquid filled fiber according to claim 8 having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 8 when subjected to an applied voltage of 10 kV per mm to 50 kV/mm.
12 . A liquid filled fiber according to claim 11 having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 15 when subjected to an applied voltage of 10 kV per mm.
13 . A liquid filled fiber according to claim 12 having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 9 at a pump power of 150 W to 800 W.
14 . A liquid filled fiber according to claim 13 having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 12 at a pump power of 150 W to 500 W.
15 . A liquid filled fiber according to claim 13 having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 15 at a pump power of 150 W to 300 W.
16 . An elongate liquid filled fiber for differential frequency generation in conjunction with a dual electrode laser source and pump operably associated therewith, the liquid filled fiber comprising:
an external cladding surrounding a polar liquid, the fiber having a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 2 when subjected to an applied voltage of 10 kV per mm to 100 kV/mm with a pump power from 25 W to 1000 W, wherein the laser has an electrode separation D and a wavelength Λ and
2.3
≤
Λ
D
≤
666.7
and n core >n cladding .
17 . A liquid filled fiber according to claim 16 having an applied voltage of 50 kV/mm and a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 3 at a pump power of 25 W to 400 W.
18 . A liquid filled fiber according to claim 16 having an applied voltage of 50 kV/mm and a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 3 at a pump power of 25 W to 400 W.
19 . A liquid filled fiber according to claim 16 having an applied voltage of 10 kV per mm to 50 kV/mm and a ratio of the gain of QPM/DFG to the gain of the Raman scattering SRS greater than 8 at a pump power of 300 W to 900 W.
20 . A liquid filled fiber according to claim 16 wherein the liquid further comprises a CTM.