Gamma-Ray Radiation Effect on Non-Resonant Third-Order Optical Nonlinearity of Germano-Silicate Optical Fiber

Author

Youngwoong Kim ; Seongmin Ju ; Seongmook Jeong ; Jong-Yeol Kim ; Nam-Ho Lee ; Hyun-Kyu Jung ; Won-Taek Han

Author_Institution

Dept. of Phys. & Photon Sci., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea

Volume

62

Issue

3

fYear

2015

fDate

Jun-15

Firstpage

1362

Lastpage

1366

Abstract

Gamma-ray radiation effect on the non-resonant third-order optical nonlinearity of the germano-silicate optical fiber has been investigated by the continuous-wave self-phase modulation method. The nonlinear refractive index, n₂, of the gamma-ray irradiated optical fiber was found to increase linearly with the increase of the gamma-ray induced absorption. The increased n₂ has been mainly ascribed to the NBOs and Ge-realted radiation-induced defects having hyperpolarizabilities.

Keywords

gamma-ray effects; germanium compounds; nonlinear optical susceptibility; optical fibre polarisation; optical glass; refractive index; self-phase modulation; Ge-realted radiation-induced defects; NBO; continuous-wave self-phase modulation method; gamma-ray induced absorption; gamma-ray irradiated optical fiber; gamma-ray radiation effect; germano-silicate optical fiber; hyperpolarizabilities; nonlinear refractive index; nonresonant third-order optical nonlinearity; Nonlinear optics; Optical attenuators; Optical fibers; Optical refraction; Optical variables control; Radiation effects; Gamma-ray; hyperpolarizabilities; non-resonant optical nonlinearity; nonlinear refractive index; optical fiber; radiation-induced defects; radiation-induced effects;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2015.2427804

Filename

7117459