Title :
Twisted hi-bi fiber DFB lasers with controllable output polarization
Author :
Zervas, Michalis N. ; Wilmshurst, Richard ; Walker, Louise M B
Author_Institution :
SPI Lasers, Southampton, UK
Abstract :
We demonstrate that single polarization, hi-bi fiber DFB lasers are in general characterized by elliptical state of polarization, due to the in-built fiber birefringence axis rotation. Externally applied birefringence-axis twist is shown to provide accurate control of the output SOP. Continuous tuning from circular to linear polarization, with PER of ~40dB has been demonstrated.
Keywords :
birefringence; distributed feedback lasers; erbium; fibre lasers; laser beams; optical fibre polarisation; ytterbium; birefringence-axis twist; controllable output polarization; distributed feedback laser; elliptical polarization state; in-built fiber birefringence axis rotation; single polarization fiber DFB laser; twisted Hi-Bi fiber DFB laser; Fiber lasers; Laser modes; Optical fiber communication; Optical fiber polarization; Optical fiber sensors; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
