Mr. Brian P. Fox Profile

Brian P. Fox

at Univ of Arizona

SPIE Involvement:

Author

Publications (6)

Proceedings Article | 29 August 2009 Paper

Gamma-radiation-induced photodarkening in actively pumped Yb[sup]3+[/sup]-doped optical fiber and investigation of post-irradiation transmittance recovery

B. Fox, K. Simmons-Potter, S. Moore, J. Fisher, D. Meister

Proceedings Volume 7434, 74340C (2009) https://doi.org/10.1117/12.828382

KEYWORDS: Optical fibers, Optical amplifiers, Transmittance, Fiber amplifiers, Absorption, Amplifiers, Annealing, Diodes, Semiconductor lasers, Radiation effects

Read Abstract +

Proceedings Article | 26 August 2008 Paper

Temperature and dose-rate effects in gamma irradiated rare-earth doped fibers

B. Fox, K. Simmons-Potter, W. Thomes, D. Meister, R. Bambha, D. Kliner

Proceedings Volume 7095, 70950B (2008) https://doi.org/10.1117/12.795595

KEYWORDS: Optical fibers, Transmittance, Ocean optics, Absorption, Xenon, Spectroscopy, Silicon, Erbium, Ytterbium, Fiber amplifiers

Read Abstract +

Proceedings Article | 14 April 2008 Paper

Overview of Sandia's fiber laser program

Dahv A. Kliner, Ray Bambha, Binh Do, Roger Farrow, Jean-Philippe Fève, Brian Fox, G. Ronald Hadley, Andrea Hansen, Hanna Hoffman, Mircea Hotoleanu, Alexandra Hoops, Wen Hsu, Jeffrey Koplow, Joona Koponen, Sean Moore, Randal Schmitt, Paul Schrader, Joseph Simmons, Kelly Simmons-Potter, Arlee Smith, Mikko Söderlund, W. Joseph Thomes, Georg Wien

Proceedings Volume 6952, 695202 (2008) https://doi.org/10.1117/12.782227

KEYWORDS: Fiber amplifiers, Diodes, Fiber lasers, Optical amplifiers, 3D modeling, Nonlinear dynamics, Optical damage, Performance modeling, Optical filters, Optical pumping

Read Abstract +

Proceedings Article | 22 February 2008 Paper

Radiation damage effects in doped fiber materials

B. Fox, K. Simmons-Potter, J. Simmons, W. Thomes, R. Bambha, D. Kliner

Proceedings Volume 6873, 68731F (2008) https://doi.org/10.1117/12.778764

KEYWORDS: Transmittance, Ocean optics, Radiation effects, Silicon, Absorption, Optical fibers, Gamma radiation, Resistance, Near infrared, Spectroscopy

Read Abstract +

Proceedings Article | 26 September 2007 Paper

Investigation of radiation-induced photodarkening in passive erbium-, ytterbium-, and Yb/Er co-doped optical fibers

B. Fox, K. Simmons-Potter, J. Simmons, W. Thomes, R. Bambha, D. A. Kliner

Proceedings Volume 6713, 67130R (2007) https://doi.org/10.1117/12.735212

KEYWORDS: Optical fibers, Transmittance, Ocean optics, Gamma radiation, Absorption, Silicon, Resistance, Spectroscopy, Erbium, Color centers

Read Abstract +

Proceedings Article | 23 February 2007 Paper

Gamma radiation effects in Yb-doped optical fiber

B. Fox, Z. Schneider, K. Simmons-Potter, W. Thomes, D. Meister, R. Bambha, D. Kliner

Proceedings Volume 6453, 645328 (2007) https://doi.org/10.1117/12.712244

KEYWORDS: Transmittance, Silicon, Gamma radiation, Optical fibers, Fiber lasers, Ocean optics, Color centers, Ytterbium, Radiation effects, Spectroscopy

Read Abstract +

Determination of the radiation response of doped-fiber laser materials, systems and components to relevant ionizing radiation fluxes is central to the prediction of long-term fiber-based laser performance/survivability in adverse and/or space-based environments. It is well known that optical elements that are placed into orbit around the Earth experience harsh radiation environments that originate from trapped-particle belts, cosmic rays, and solar events. Of particular interest to optical materials is the continuous flux of gamma photons that the materials encounter. Such radiation exposure commonly leads to the formation of color centers in a broad range of optical materials. Such color center formation gives rise to changes in optical transmission, loss and luminescent band structure, and, thus, impacts long-term optical device performance. In this paper we will present the results of our investigation of gamma-radiation-induced photodarkening on the passive optical transmittance of a number of ytterbium- (Yb-) doped optical fibers. We will discuss the evolution of the optical response of the fiber across the 1.0 to 1.6 micron wavelength window with increasing gamma exposure. Results indicate that these fibers exhibit reasonable radiation resistance to gamma exposures typical of a 5-year, low-earth-orbit environment. Maximum transmittance losses of less than 10% were observed for total gamma exposures of 2-5 krad (Si). In this paper we will present the results of our investigation of gamma-radiation-induced photodarkening on the optical transmittance of a number of ytterbium- (Yb-) doped optical fibers. We will discuss the evolution of the optical response of the fiber across the 1.0 to 1.6 micron wavelength window with increasing gamma exposure. Results indicate that these fibers exhibit reasonable radiation resistance to gamma exposures typical of a 5-year, low-earth orbit environment. Maximum transmittance losses of less than 10% were observed for total gamma exposures of 2-5 krad (Si).

Showing 5 of 6 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years