Title :
Emission characteristics of polymer circular grating distributed feed-back lasers
Author :
Barlow, G.F. ; Shore, K.A.
Author_Institution :
Sch. of Informatics, Univ. of Wales, Bangor, UK
Abstract :
The current work forms part of a thorough theoretical and practical investigation of circular grating CG-DFB laser designs using thin polymer films as the active material on a silicate substrate. CG-DFBs constructed from MEH-PPV thin films having emission spectra peaks at approximately 630 nm have been analysed to obtain near-field and far-field radiation patterns for their lasing modes. It is also seen how multisection designs can be used to give more favourable emission characteristics.
Keywords :
diffraction gratings; distributed feedback lasers; electroluminescence; laser modes; optical design techniques; optical films; optical polymers; polymer films; silicon compounds; DFB laser design; emission characteristic; emission spectra peak; far-field radiation pattern; lasing modes; near-field radiation pattern; polymer circular grating distributed feed-back laser; silicate substrate; thin polymer films; Gratings; Laser modes; Laser tuning; Optical films; Optical materials; Optical polymers; Polymer films; Semiconductor lasers; Semiconductor materials; Substrates;
Conference_Titel :
Lasers and Electro-Optics Europe, 2003. CLEO/Europe. 2003 Conference on
Print_ISBN :
0-7803-7734-6
DOI :
10.1109/CLEOE.2003.1312094
