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

Volume

15

Issue

11

fYear

2003

Firstpage

1624

Lastpage

1626

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;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2003.818639

Filename

1237609