Title :
A predistortion technique for multichannel AM-VSB lightwave CATV systems
Author :
Lin, Hung-Tser ; Kao, Yao-Huang
fDate :
30 Oct-2 Nov 1995
Abstract :
In this letter, the linearisation technique of DFB lasers with applications to AM-VSB lightwave CATV systems was presented. With a careful selection of bias point the only 42 channel capability of laser transmitter was able to be extended to 60 channel with our simple predistortion circuit. In addition, multiple subbands were suggested for easily trimming the phase controller and attenuator for ultrawide band extension
Keywords :
amplitude modulation; cable television; channel capacity; distributed feedback lasers; electro-optical modulation; linearisation techniques; optical transmitters; phase control; semiconductor lasers; 42 channel capability; 60 channel; attenuator; bias point; laser transmitter; linearisation technique; multichannel AM-VSB lightwave CATV systems; multiple subbands; phase controller; predistortion circuit; predistortion technique; ultrawide band extension; Amplitude modulation; Channel capacity; Circuits; Diode lasers; Equations; Frequency; Laser feedback; Laser noise; Nonlinear distortion; Predistortion;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1995. 8th Annual Meeting Conference Proceedings, Volume 1., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-2450-1
DOI :
10.1109/LEOS.1995.484755
