Title: Diode-laser-pump module with integrated signal ports for pumping amplifying fibers and method

Abstract

Apparatus and method for collimating pump light of a first wavelength from laser diode(s) into a collimated beam within an enclosure having first and second optical ports, directing pump light from the collimated beam to the first port; and directing signal light inside the enclosure between the first and second port. The signal and pump wavelengths are different. The enclosure provides a pump block having a first port that emits pump light to a gain fiber outside the enclosure and that also passes signal light either into or out of the enclosure, and another port that passes signal light either out of or into the enclosure. Some embodiments use a dichroic mirror to direct pump light to the first port and direct signal light between the first and second ports. Some embodiments include a wavelength-conversion device to change the wavelength of at least some of the signal light.

Inventors:

Savage-Leuchs, Matthias P. ^[1]

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+ Show Inventor Affiliations

1. Woodinville, WA

Issue Date:

2009-05-26

Research Org.:

ACULIGHT CORP

Sponsoring Org.:

USDOE

OSTI Identifier:

988047

Patent Number(s):

7537395

Application Number:

11/682,234

Assignee:

Lockheed Martin Corporation (Bethesda, MD)

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

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G - PHYSICS G02 - OPTICS G02B - OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

G02B6/4249 - {comprising arrays of active devices and fibres}
G02B6/4296 - {coupling with sources of high radiant energy, e.g. high power lasers, high temperature light sources}

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

H01S3/0407 - {Liquid cooling, e.g. by water}
H01S3/042 - for solid state lasers {
H01S3/06704 - {Housings
H01S3/094003 - {the pumped medium being a fibre}
H01S3/09408 - {Pump redundancy}
H01S5/02423 - {Liquid cooling, e.g. a liquid cools a mount of the laser}

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DOE Contract Number:  

FG02-03ER83589

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

47 OTHER INSTRUMENTATION