Coherent light generators – Optical fiber laser
Patent
1997-09-02
1999-04-06
Healy, Brian
Coherent light generators
Optical fiber laser
372 69, 372 70, 372 96, 372102, 359341, 359345, 359115, 359124, 359134, 385 24, 385 39, 385 42, 385 37, H01S 330, H01S 300, G02B 628
Patent
active
058927816
ABSTRACT:
Arrangements for high output power laser sources and optical fiber amplifiers are disclosed. In one arrangement, an optical fiber section which is doped with erbium, is coupled with one or two mirror elements, such as fiber Bragg gratings, to form a DBR or DFB fiber laser. The optical fiber section receives energy at one end from a pumping laser and lases at one or more selected wavelengths. This output light, along with energy from the pumping laser, is transmitted through the second end of the optical fiber section to an erbium-doped fiber amplifier, which boosts the laser output even higher. The gain of the optical fiber section may be further increased by co-doping the section with erbium and ytterbium. With co-doped optical fiber sections, high power output fiber optical amplifiers and laser sources, in the form of DBR and DFB fiber lasers, which can accept the pumping energies of a plurality of pumping lasers, can be created with properly selected WDM coupler and WDM coupler/isolator devices.
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Pan Jing-Jong
Shi Yuan
E-Tek Dynamics, Inc.
Healy Brian
LandOfFree
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