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Helical Fiber Amplifier

Patent ·
OSTI ID:879646
 [1];  [2];  [3]
  1. Washington, DC
  2. San Ramon, CA
  3. Fairfax, VA
+ Show Author Affiliations
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).
Research Organization:
Sandia Corporation
DOE Contract Number:
AC04-94AL85000
Assignee:
The United States of America as represented by the Secretary of the Navy (Washington, DC)
Patent Number(s):
US 6,496,301
Application Number:
09/523215
OSTI ID:
879646
Country of Publication:
United States
Language:
English

References (4)

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
Stimulated Raman scattering in a multimode optical fiber with bend-induced loss journal September 1994
Bend losses of higher-order modes in dispersion-flattened multiple-clad optical fibres journal January 1987

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