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Title: Helical Fiber Amplifier

Abstract

A multi-mode gain fiber is provided which affords substantial improvements in the maximum pulse energy, peak power handling capabilities, average output power, and/or pumping efficiency of fiber amplifier and laser sources while maintaining good beam quality (comparable to that of a conventional single-mode fiber source). These benefits are realized by coiling the multimode gain fiber to induce significant bend loss for all but the lowest-order mode(s).

Inventors:
 [1];  [2];  [3]
  1. Washington, DC
  2. San Ramon, CA
  3. Fairfax, VA
Issue Date:
Research Org.:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
OSTI Identifier:
879646
Patent Number(s):
6496301
Application Number:
09/523215
Assignee:
The United States of America as represented by the Secretary of the Navy (Washington, DC)
Patent Classifications (CPCs):
G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01S - DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Koplow, Jeffrey P, Kliner, Dahy, and Goldberg, Lew. Helical Fiber Amplifier. United States: N. p., 2002. Web.
Koplow, Jeffrey P, Kliner, Dahy, & Goldberg, Lew. Helical Fiber Amplifier. United States.
Koplow, Jeffrey P, Kliner, Dahy, and Goldberg, Lew. Tue . "Helical Fiber Amplifier". United States. https://www.osti.gov/servlets/purl/879646.
@article{osti_879646,
title = {Helical Fiber Amplifier},
author = {Koplow, Jeffrey P and Kliner, Dahy and Goldberg, Lew},
abstractNote = {A multi-mode gain fiber is provided which affords substantial improvements in the maximum pulse energy, peak power handling capabilities, average output power, and/or pumping efficiency of fiber amplifier and laser sources while maintaining good beam quality (comparable to that of a conventional single-mode fiber source). These benefits are realized by coiling the multimode gain fiber to induce significant bend loss for all but the lowest-order mode(s).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 17 00:00:00 EST 2002},
month = {Tue Dec 17 00:00:00 EST 2002}
}

Works referenced in this record:

Hollow core waveguide for high quality CO2 laser beam delivery: exploitation of bend-induced mode coupling
journal, February 1995


Role of Bend on the Optimization of 980-nm-Pumped Erbium-Doped Fiber Amplifier
journal, October 1995


Bend losses of higher-order modes in dispersion-flattened multiple-clad optical fibres
journal, January 1987


Stimulated Raman scattering in a multimode optical fiber with bend-induced loss
journal, September 1994