Title :
Wide temperature range of stable single-mode operation in weakly coupled asymmetric mirror reflectivity DFB lasers
Author :
Soda, H. ; Kihara, K. ; Furutsu, M. ; Matsuda, Manabu ; Seki, Hiroshi ; Ogita, Shoichi ; Ishikawa, Hiroshi ; Imai, H.
Author_Institution :
Fujitsu Laboratories Ltd., Atsugi, Japan
Abstract :
A maximum difference between the peak gain wavelength and the lasing wavelength where stable DFB mode operation is achieved has been obtained for weakly coupled (KL¿; 0¿7), asymmetric mirror structure (Rf = 5%, Rr = 31%) DFB lasers. DFB lasers optimally fabricated exhibit single-longitudinal-mode operation over a wide temperature range of 5¿100°C.
Keywords :
III-V semiconductors; distributed feedback lasers; gallium arsenide; gallium compounds; indium compounds; laser modes; semiconductor junction lasers; 5 to 100 degC; GaInAsP-InP laser; lasing wavelength; peak gain wavelength; semiconductor laser; single-longitudinal-mode operation; stable single-mode operation; weakly coupled asymmetric mirror reflectivity DFB lasers; wide temperature range;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870514
