Title :
Using an optical equalizer to transmit a 43-Gb/s signal with an 8-GHz bandwidth modulator
Author :
Doerr, C.R. ; Gnauck, A.H. ; Stulz, L.W. ; Gill, D.M.
Author_Institution :
Bell Labs., Holmdel, NJ, USA
Abstract :
We demonstrate that a simple general optical equalizer permits the generation of 42.7-Gb/s nonreturn-to-zero data from an 8-GHz bandwidth LiNbO/sub 3/ modulator. The sensitivity at 10/sup -9/ bit-error ratio is only 1 dB poorer than using a 36-GHz bandwith modulator. Since the equalizer can act on many channels simultaneously and be used in a set-and-forget mode, we can potentially reduce the cost of 40-Gb/s transmitters.
Keywords :
Mach-Zehnder interferometers; electro-optical modulation; equalisers; error statistics; lithium compounds; optical transmitters; wavelength division multiplexing; 36 GHz; 42.7 Gbit/s; 43 Gbit/s; 8 GHz; LiNbO/sub 3/; bandwidth modulator; bit-error ratio sensitivity; length-imbalanced Mach-Zehnder interferometers; nonreturn-to-zero data; set-and-forget mode; simple general optical equalizer; transmitter cost; Bandwidth; Equalizers; Intersymbol interference; Optical interferometry; Optical modulation; Optical receivers; Optical sensors; Optical transmitters; Satellites; Wavelength division multiplexing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2003.818639
