Title :
Compensation of Laser Thermal Depolarization Using Free Space
Author :
Morehead, James J.
Author_Institution :
JDSU Commercial Lasers, Milpitas
Abstract :
Thermally induced birefringence in a single-transverse-mode laser for moderate pumping is well compensated when the rod is double-passed after reflection from a mirror one Rayleigh range away from the rod. The depolarized light is in a spatial (1, 1) mode and the relative Gouy phase shift between the fundamental and depolarized modes in propagating a Rayleigh range leads to good compensation.
Keywords :
birefringence; light polarisation; optical retarders; quantum optics; thermo-optical effects; Rayleigh range; depolarized light; laser thermal depolarization; relative Gouy phase shift; single-transverse-mode laser; thermally induced birefringence; Birefringence; Laser beams; Laser excitation; Laser modes; Mirrors; Optical propagation; Optical retarders; Polarization; Pump lasers; Thermal stresses; Depolarization compensation; Gouy phase; laser cavities; quarter-wave plate;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/JSTQE.2007.896616
