PRECHIRP TECHNIQUE AS A LINEAR DISPERSION COMPENSATION FOR ULTRAHIGH-SPEED LONG-SPAN INTENSITY MODULATION DIRECTED DETECTION OPTICAL COMMUNICATION-SYSTEMS
N. Henmi et al., PRECHIRP TECHNIQUE AS A LINEAR DISPERSION COMPENSATION FOR ULTRAHIGH-SPEED LONG-SPAN INTENSITY MODULATION DIRECTED DETECTION OPTICAL COMMUNICATION-SYSTEMS, Journal of lightwave technology, 12(10), 1994, pp. 1706-1719
Prechirp technique, as a linear dispersion compensation for intensity
modulation direct detection (IM-DD) optical transmission systems, has
been investigated theoretically and experimentally. This technique is
based on a predistortion technique in an optical transmitter. Implemen
tation to the ordinary IM-DD optical transmitter, which uses an extern
al intensity modulator, is easily realized merely by adding a small in
jection current modulation to a semiconductor laser diode. Allowable o
ptical transmission fiber dispersion will be more than doubled with th
is technique. Modified prechirp technique, which utilizes a time divis
ion superimposing prechirped bit streams, has also been investigated t
o achieve greater dispersion compensation capability.