Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery

B. P. Fox, K. Simmons-Potter, S. W. Moore, J. H. Fisher, D. C. Meister

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Fibers doped with rare-earth constituents such as Yb3+ and Er3+, as well as fibers co-doped with these species, form an essential part of many optical systems requiring amplification. This study consists of two separate investigations examining the effects of gamma-radiation-induced photodarkening on the behavior of rare-earth doped fibers. In one part of this study, a suite of previously irradiated rare-earth doped fibers was heated to an elevated temperature of 300°C and the transmittance monitored over an 8-hour period. Transmittance recoveries of ~10 - 20% were found for Er3+- doped fiber, while recoveries of ~5 - 15% and ~20% were found for Yb3+- and Yb3+/Er3+ co-doped fibers, respectively. In the other part of this study, an Yb3+-doped fiber was actively pumped by a laser diode during a gamma-radiation exposure to simulate the operation of an optical amplifier in a radiation environment. The response of the amplified signal was observed and monitored over time. A significant decrease in amplifier output was observed to result from the gamma-radiation exposure.

Original languageEnglish (US)
Title of host publicationOptical Technologies for Arming, Safing, Fuzing, and Firing V
DOIs
StatePublished - Nov 18 2009
EventOptical Technologies for Arming, Safing, Fuzing, and Firing V - San Diego, CA, United States
Duration: Aug 5 2009Aug 5 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume7434
ISSN (Print)0277-786X

Other

OtherOptical Technologies for Arming, Safing, Fuzing, and Firing V
CountryUnited States
CitySan Diego, CA
Period8/5/098/5/09

Keywords

  • Elevated-temperature thermal anneal
  • Fiber annealing
  • Fiber loss recovery
  • Gamma irradiation
  • Photodarkening
  • Radiation-induced absorption
  • Rare-earth doped fibers
  • Yb-doped fiber amplifier

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery'. Together they form a unique fingerprint.

Cite this