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

B. P. Fox, Kelly Potter, S. W. Moore, J. H. Fisher, D. C. Meister

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

1 Citation (Scopus)

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 publicationProceedings of SPIE - The International Society for Optical Engineering
Volume7434
DOIs
StatePublished - 2009
EventOptical Technologies for Arming, Safing, Fuzing, and Firing V - San Diego, CA, United States
Duration: Aug 5 2009Aug 5 2009

Other

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

Fingerprint

Photodarkening
Photochromism
Transmittance
Gamma rays
Irradiation
Optical Fiber
Optical fibers
transmittance
Recovery
optical fibers
recovery
Radiation
Fiber
gamma rays
Rare earth-doped fibers
irradiation
fibers
Fibers
Rare Earths
rare earth elements

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

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

Cite this

Fox, B. P., Potter, K., Moore, S. W., Fisher, J. H., & Meister, D. C. (2009). Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery. In Proceedings of SPIE - The International Society for Optical Engineering (Vol. 7434). [74340C] https://doi.org/10.1117/12.828382

Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery. / Fox, B. P.; Potter, Kelly; Moore, S. W.; Fisher, J. H.; Meister, D. C.

Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7434 2009. 74340C.

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

Fox, BP, Potter, K, Moore, SW, Fisher, JH & Meister, DC 2009, Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery. in Proceedings of SPIE - The International Society for Optical Engineering. vol. 7434, 74340C, Optical Technologies for Arming, Safing, Fuzing, and Firing V, San Diego, CA, United States, 8/5/09. https://doi.org/10.1117/12.828382
Fox BP, Potter K, Moore SW, Fisher JH, Meister DC. Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery. In Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7434. 2009. 74340C https://doi.org/10.1117/12.828382
Fox, B. P. ; Potter, Kelly ; Moore, S. W. ; Fisher, J. H. ; Meister, D. C. / Gamma-radiation-induced photodarkening in actively pumped Yb3+- doped optical fiber and investigation of post-Irradiation transmittance recovery. Proceedings of SPIE - The International Society for Optical Engineering. Vol. 7434 2009.
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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.",
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AB - 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.

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