Accession Number:

AD1033878

Title:

All-Glass Fiber Amplifier Pumped by Ultra-High Brightness Pumps

Descriptive Note:

Technical Report

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LEXINGTON United States

Personal Author(s):

Report Date:

2016-02-15

Pagination or Media Count:

6.0

Abstract:

We investigate high brightness pumping of multi-kW fiber amplifier in a bi-directional pumping configuration. Each pump outputs 2 kW in a 200 m, 0.2 NA multi-mode fiber. Specialty gain fibers, with 17 m MFD and 5-dBmeter pump absorption, have been developed. The maximum fiber amplifier output power is 2550 W, limited by multi-mode instability, with 90 O-O efficiency and M2 1.15. The fiber amplifier linewidth is 12 GHz. We also present kW fiber amplifier results using gain fiber with metalized fiber coating.

Subject Categories:

  • Electrical and Electronic Equipment
  • Optics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE