Patent · US Active

Frequency-stabilized random distributed feedback fiber ring laser with low intensity noise

US9252555B2 · kind B2 · utility

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14Claims

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Assignee

THE UNIVERSITY OF OTTAWA · CA

Inventors

Yang Li · Shanghai, CN
Ping Lu · Ottawa, CA
Xiaoyi Bao · Ottawa, CA
Zhonghua OU · Ottawa, CA

Key dates

Filing date	Mar 3, 2015
Grant date	Feb 2, 2016
Priority date	—
Expiry date	Apr 5, 2035

Classification

Technology area (CPC H)Electricity
CPC primaryH01S2301/02
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A method and apparatus for producing single mode random fiber ring laser by inducing random distributed feedback in a short section of the fiber ring to thereby enable single mode lasing while reducing frequency jitter and relative intensity noise. The random distributed feedback maybe achieved through deep refractive index modulation at a series of randomly distributed laser-irradiated points inscribed along the length of the induced random distributed feedback fiber. The laser-processed random distributed feedback fiber maybe incorporated into the fiber ring in conjunction with a variable optical attenuator and band pass optical filter for enhancing the single mode operation.

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