Title :
Narrow linewidth tunable DFB laser array for PDM-16QAM transmission
Author :
Kimoto, Tatsuya ; Kobayashi, Go ; Kurobe, T. ; Mukaihara, Toshikazu ; Ralph, Stephen
Author_Institution :
Opt. Devices Dept., Furukawa Electr. Co., Ltd., Chiba, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
To increase capacity of Long-Haul optical network, digital coherent transmission method is recently launched. Due to progress of multi-valued phase modulation, tunable light sources of narrow spectral linewidth are strongly demanded for local oscillator in optical receiver. While, modulators structure become complicated in optical transmitter, so high power signal sources are required to compensate the insertion loss. We report realization of narrow linewidth (<;218 kHz) and high power characteristics (>15.5 dBm) in DFB array integrated tunable light source. Results of PDM-16QAM transmission have been successfully demonstrated.
Keywords :
distributed feedback lasers; laser arrays; laser tuning; multiplexing; optical fibre networks; optical transmitters; quadrature amplitude modulation; spectral line breadth; PDM-16QAM transmission; digital coherent transmission method; integrated tunable light source; long-haul optical network; multivalued phase modulation; narrow linewidth tunable DFB laser array; narrow spectral linewidth; optical transmitter; Arrays; Bit error rate; Laser modes; Laser noise; Power amplifiers; Power generation; Semiconductor optical amplifiers;
Conference_Titel :
OptoElectronics and Communications Conference held jointly with 2013 International Conference on Photonics in Switching (OECC/PS), 2013 18th
Conference_Location :
Kyoto
