Dispersion-tolerant all-optical subcarrier modulator for broad-band BPSK transmissions

We introduce a novel all-optical binary phase-shift keying (BPSK) subcarrier modulator based on commercial Mach-Zehnder electrooptic modulators (MZ-EOMs) that provides a dispersion-tolerant output signal with enhanced optical modulation depth. The design exploits the nonlinear transfer function of M...

Full description

Saved in:
Bibliographic Details
Published in:IEEE photonics technology letters 2004-04, Vol.16 (4), p.1161-1163
Main Authors: Loayssa, A., Benito, D.
Format: Article
Language:English
Subjects:
Binary phase shift keying
Dispersions
Electrooptic modulators
Frequency
Impairment
Millimeter wave technology
Modulation
Modulators
Nonlinearity
Optical modulation
Phase modulation
Phase shift keying
Photonics
Signal design
Signal generators
Subcarriers
Transfer functions
Transmission
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We introduce a novel all-optical binary phase-shift keying (BPSK) subcarrier modulator based on commercial Mach-Zehnder electrooptic modulators (MZ-EOMs) that provides a dispersion-tolerant output signal with enhanced optical modulation depth. The design exploits the nonlinear transfer function of MZ-EOM to halve the frequency of the electrical signal required to generate a given subcarrier. Moreover, the bit rate of the data imposed on the subcarrier is shown to be constrained only by the bandwidth of the deployed MZ-EOM; hence, in principle, current commercial technology could provide BPSK modulation of microwave/millimeter-wave subcarriers at up to 40 Gb/s. The operation of the BPSK subcarrier modulator and its tolerance to chromatic dispersion impairments are experimentally demonstrated transmitting a 15-GHz subcarrier with 2.5-Gb/s BPSK modulation over a 25-km standard single-mode fiber link.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2004.824980