Patent · US Active

Single mode propagation in fibers and rods with large leakage channels

US7787729B2 · kind B2 · utility

41Cited by

61References

58Claims

0Family size

Assignee

IMRA America, Inc. · US

Inventors

Liang Dong · Ann Arbor, US
William Wong · New York, US
Martin E. Fermann · Dexter, US

Key dates

Filing date	May 20, 2005
Grant date	Aug 31, 2010
Priority date	—
Expiry date	Jul 8, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH01S2302/00
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Various embodiments include large cores fibers that can propagate few modes or a single mode while introducing loss to higher order modes. Some of these fibers are holey fibers that comprising cladding features such as air-holes. Additional embodiments described herein include holey rods. The rods and fibers may be used in many optical systems including optical amplification systems, lasers, short pulse generators, Q-switched lasers, etc. and may be used for example for micromachining.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.