Abstract
We demonstrate a cost-effective method to implement a 10-Gb/s optical duobinary transmitter using a simple nonbuffered x-cut LiNbO3 Mach-Zehnder (MZ) modulator. The bandwidth of the modulator used in our experimental demonstration is 4 GHz. The duobinary signal generated from the nonbuffered MZ modulator exhibits a similar performance to the one using a 9-GHz bandwidth buffered MZ modulator, in terms of dispersion and self-phase modulation tolerance. Thus, the use of cost-effective nonbuffered x-cut MZ modulators will substantially relax the cost issues of duobinary transmitters, by offsetting the cost of the precoder and the encoder which are not needed in conventional ON-OFF keying transmitters.
Original language | English |
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Pages (from-to) | 1188-1190 |
Number of pages | 3 |
Journal | IEEE Photonics Technology Letters |
Volume | 16 |
Issue number | 4 |
DOIs | |
State | Published - Apr 2004 |
Externally published | Yes |
Keywords
- Lithium niobate (LiNbO) modulator
- Optical communication
- Optical duobinary
- Optical modulation