Title :
Ionization-induced nonequivalent absorption in a birefringent silica fiber
Author :
Taylor, E.W. ; Wilson, V.R. ; Vigil, M.L. ; Lemire, R.A. ; Thompson, E.E.
Author_Institution :
Air Force Weapons Lab., Kirtland AFB, NM, USA
Abstract :
The response of a single-mode highly birefringent fiber, operating at a wavelength of 1.3 mu m and irradiated by a source of 200 MeV pulsed protons, is presented. The fiber fast and slow axes of birefringence were optically excited and observed to exhibit transient absorption at different rates which scaled linearly over the pulsed exposure range of 2.6-17.4 krad (Si). Mechanisms possibly affecting the fiber birefringence are discussed including the introduction of transient electric and magnetic fields arising from the ionizing radiation.<>
Keywords :
birefringence; light absorption; optical fibres; proton effects; silicon compounds; 1.3 micron; 200 MeV; ionization induced nonequivalent absorption; ionizing radiation; magnetic fields; pulsed exposure range; pulsed protons; silica; single mode highly birefringent SiO/sub 2/ fiber; transient absorption; transient electric fields; Absorption; Birefringence; Coils; Optical fiber polarization; Optical fiber testing; Optical fibers; Optical refraction; Optical waveguides; Protons; Silicon compounds;
Journal_Title :
Photonics Technology Letters, IEEE
