A multi-wavelength optical source for synchronous and asynchronous data transfer at a minimum of 16×10 Gbps
✍ Scribed by D.D. Shah; Nimish Dixit; R. Vijaya
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 159 KB
- Volume
- 9
- Category
- Article
- ISSN
- 1068-5200
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✦ Synopsis
Numerical calculations have been carried out to study the characteristics of a multi-channel optical source capable of delivering (i) picosecond pulses with 10 GHz repetition rate at 16 different wavelengths and (ii) at least 16 channel multi-wavelength single mode CW output with precise 40 GHz channel spacing for application to fiber communication. In the first scheme, the pulse characteristics like power variation, pulse width and de-synchronization across the 16 demultiplexed channels are numerically investigated. The pulse width is observed to be almost constant (∼13 ps) in all the channels. The suitability of dispersion flattened fiber and dispersion shifted fiber as supercontinuum fiber is analyzed from the viewpoint of power variation and de-synchronization. In the second scheme a negligible power variation is observed across the 16 CW channels. The advantage of the proposed scheme lies in obtaining easy up-gradation with ultra-stable pulse train. The first scheme is suitable only for synchronous data transfer while the second scheme can be used also for asynchronous data transfer.