Title :
A four-channel multiwavelength fiber-grating external-cavity-laser array
Author :
Hamakawa, Atsushi ; Kato, Takashi ; Sasaki, Goro ; Shigehara, Masakazu
Author_Institution :
Optoelectron. R&D Lab., Sumitomo Electr. Ind. Ltd., Kanagawa, Japan
Abstract :
A fiber-grating external-cavity-laser (FG-ECL) is expected as a useful light source in optical fiber communication systems. Its oscillation wavelength is determined by a reflection peak wavelength of the fiber grating. The wavelength controllability of fiber gratings is in the order of subnanometers, so the FG-ECL could be especially useful in dense wavelength-division multiplexing (WDM) systems where precise wavelength control of lasers is required. Utilizing a four-channel fiber grating array, we obtained a four-channel multiwavelength oscillation with 1-nm spacing, which demonstrated the feasibility of the FG-ECL as the WDM light source
Keywords :
diffraction gratings; laser cavity resonators; laser tuning; optical communication equipment; optical fibre networks; semiconductor laser arrays; wavelength division multiplexing; Bragg gratings; dense WDM systems; fiber-grating external-cavity-laser array; four-channel fiber grating array; four-channel multiwavelength; lens array; optical fiber communication systems; precise wavelength control; semiconductor optical amplifier array; wavelength controllability; Communication system control; Control systems; Controllability; Fiber gratings; Fiber lasers; Light sources; Optical control; Optical fiber communication; Optical reflection; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication. OFC 97., Conference on
Conference_Location :
Dallas, TX
Print_ISBN :
1-55752-480-7
DOI :
10.1109/OFC.1997.719907
