Narrow line-width laser characterization based on bi-directional pumped Brillouin random fiber laser

US9640942B2 · kind B2 · utility

Assignee

• THE UNIVERSITY OF OTTAWA · CA

Inventors

• Zhonghua OU · Ottawa, CA
• Xiaoyi Bao · Ottawa, CA
• Yang Li · Shanghai, CN
• Liang Chen

Key dates

• Filing date: May 3, 2016
• Grant date: May 2, 2017
• Expiry date: May 3, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01S3/0014
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A method and apparatus for launching optical pump signals into a disordered gain medium at two points thereby producing a narrow line-width random fiber laser within the disordered gain medium. The optical pump signals are propagated in a direction through the disordered gain medium towards one another. The apparatus may comprise an optical gain fiber having a first end configured to receive a first fiber pump signal and a second end configured to receive a second fiber pump signal such that the first fiber pump signal and the second fiber pump signal propagate within the optical gain fiber in a direction towards one another. An optical loss device is coupled to the optical gain fiber, wherein the optical loss device isolates a narrow line-width random fiber laser signal from a signal generated within the optical gain fiber.