Title :
Growth and decay of the electrooptic effect in thermally poled B/Ge codoped fiber
Author :
Janos, Mark ; Xu, Wei ; Wong, Danny ; Inglis, H. ; Fleming, S.
Author_Institution :
Uniphase Fiber Components, North Ryde, NSW, Australia
fDate :
6/1/1999 12:00:00 AM
Abstract :
Using an in situ technique for measuring the induced electrooptic effect during poling, we have studied the growth and decay characteristics of thermally poled twin hole B/Ge codoped fiber devices. The decay characteristic measured at elevated temperatures were best fitted with a stretched exponential function, indicating a distribution of relaxation times is present in this material. Using the Arrhenius relation, we calculate an activation energy for the stability of the electrooptic effect with this material and poling geometry in the range from 25 to 28 kJ/mol (0.28-0.31 eV), corresponding to a lifetime at 298 K of approximately 45 days
Keywords :
boron; electro-optical effects; germanium; optical fibre testing; stability; thermo-optical effects; 0.28 to 0.31 eV; 298 K; 45 d; Arrhenius relation; activation energy; decay characteristic; electrooptic effect; elevated temperatures; in situ technique; induced electrooptic effect measurement; lifetime; poling geometry; relaxation times; stability; stretched exponential function; thermally poled B/Ge codoped fiber; thermally poled twin hole B/Ge codoped fiber devices; Australia; Electrodes; Electrooptic effects; Electrostatic measurements; Geometry; Optical fiber devices; Optical fiber sensors; Optical fibers; Photonics; Testing;
Journal_Title :
Lightwave Technology, Journal of
