Title :
State of the art laser sources for high bit rate, long haul fiber optic communications systems
Author :
Johnston, W.D., Jr.
Author_Institution :
Lucent Technol., AT&T Bell Labs., Murray Hill, NJ, USA
Abstract :
The worldwide voice and data telecommunications network operates over optical fiber cable using semiconductor lasers emitting at wavelengths near 1.55 micrometer wavelength. Spans up to 640 kilometers are served, without electronic regeneration, using erbium-doped optical fiber amplifiers. Typically, a number of wavelength "channels" are multiplexed together and sent over a single fiber strand. The number of channels so multiplexed has grown from 8 to 16 in systems installed in 1997, to 40 for systems in 1998 to 80 or more in 1999 systems. Each channel carries 2.5 or 10 Gbits/sec. of information.
Keywords :
data communication; laser beam applications; multiplexing; optical fibre amplifiers; optical transmitters; semiconductor lasers; telecommunication channels; voice communication; 1.55 mum; 10 Gbit/s; 2.5 Gbit/s; data telecommunications network; electronic regeneration; erbium-doped optical fiber amplifiers; high bit rate long haul fiber optic communications systems; optical fiber cable; semiconductor lasers; single fiber strand; state of the art laser sources; wavelength channel multiplexing; worldwide voice; Bit rate; Distributed feedback devices; Erbium-doped fiber lasers; Fiber lasers; Laser feedback; Laser stability; Optical fiber cables; Optical fiber communication; Optical transmitters; Semiconductor lasers;
Conference_Titel :
Microwave Photonics, 1998. MWP '98. International Topical Meeting on
Conference_Location :
Princeton, NJ, USA
Print_ISBN :
0-7803-4936-9
DOI :
10.1109/MWP.1998.745671
