Title :
Single-frequency MOPA Er/sup 3+/ DBR fiber laser for WDM digital telecommunication systems
Author :
Bonfrate, G. ; Vaninetti, F. ; Negrisolo, F.
Author_Institution :
Optoelectron. Res. Centre, Southampton Univ., UK
Abstract :
The realization, the characteristics and the bit-error-rate (BER) performance of a single frequency, linear polarization Er/sup 3+/-doped distributed Bragg reflector fiber laser are reported. The device, pumped at 980 nm, gives a maximum output power of 13 mW with an overall slope efficiency /spl eta/=24%, a continuous-wave intensity ripple around 1% and a linewidth of 2.2 kHz. The BER test, performed without any polarization control system in a complete 475-km-long 2.5-Gb/s wavelength-division-multiplexed transmission line, shows only a 0.5-dB penalty is introduced.
Keywords :
distributed Bragg reflector lasers; erbium; fibre lasers; infrared sources; laser frequency stability; laser transitions; optical communication equipment; optical fibre polarisation; optical pumping; wavelength division multiplexing; 13 mW; 2.5 Gbit/s; 24 percent; 475 km; 980 nm; Gb/s wavelength-division-multiplexed transmission line; WDM digital telecommunication systems; bit-error-rate performance; continuous-wave intensity ripple; laser pumping; laser transitions; master oscillator power amplifiers; maximum output power; overall slope efficiency; single frequency linear polarization Er/sup 3+/-doped DBR fibre laser; single-frequency MOPA Er/sup 3+/ DBR fiber laser; Bit error rate; Distributed Bragg reflectors; Erbium; Fiber lasers; Frequency; Optical fiber devices; Optical fiber polarization; Optical fiber testing; Power generation; Pump lasers;
Journal_Title :
Photonics Technology Letters, IEEE
