Title :
Uncooled Fabry-Perot lasers for QPSK transmission
Author :
Woodward, S.L. ; Bodeep, G.E.
Author_Institution :
Crawford Hill Lab., AT&T Bell Labs., Holmdel, NJ, USA
fDate :
5/1/1995 12:00:00 AM
Abstract :
We investigate the use of uncooled lasers in an optical fiber transmission system employing quadrature-phase-shift keyed (QPSK) signals on subcarriers. The BER of a 2 Mb/s QPSK channel is measured in a system containing 60 subcarriers. Error-free performance (BER <10/sup -9/) is achieved over a wide range of modulation depths. This demonstrates that these inexpensive lasers can be used in multi-channel digital systems.<>
Keywords :
digital communication; error statistics; fibre lasers; laser beam applications; optical fibre communication; optical modulation; quadrature phase shift keying; 2 Mbit/s; BER; QPSK transmission; bit error rate; error-free performance; modulation depths; multichannel digital systems; optical fiber transmission system; phase-shift keyed signals; quadrature-PSK signals; subcarriers; uncooled Fabry-Perot lasers; Bandwidth; Bit error rate; Fabry-Perot; Fiber lasers; Laser modes; Laser noise; Optical fiber networks; Optical fiber testing; Quadrature phase shift keying; Temperature;
Journal_Title :
Photonics Technology Letters, IEEE
