Controlling the 1 μm spontaneous emission in Er/Yb co-doped fiber amplifiers

Opt Express. 2011 Sep 26;19(20):19104-13. doi: 10.1364/OE.19.019104.

Abstract

In this paper we present our experimental studies on controlling the amplified spontaneous emission (ASE) from Yb(3+) ions in Er/Yb co-doped fiber amplifiers. We propose a new method of controlling the Yb-ASE by stimulating a laser emission at 1064 nm in the amplifier, by providing a positive 1 μm signal feedback loop. The results are discussed and compared to a conventional amplifier setup without 1 μm ASE control and to an amplifier with auxiliary 1064 nm seeding. We have shown, that applying a 1064 nm signal loop in an Er/Yb amplifier can increase the output power at 1550 nm and provide stable operation without parasitic lasing at 1 μm.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amplifiers, Electronic*
  • Computer-Aided Design
  • Equipment Design
  • Fiber Optic Technology / instrumentation*
  • Lasers, Solid-State*
  • Light*
  • Reproducibility of Results
  • Scattering, Radiation*
  • Telecommunications*