Generation of Time- and Wavelength-Interleaved Optical Pulse-Train With Tunable Pulsewidth Based on Dispersion and Sectional Compression
| Autor: | Peng Huei Lim, Sheel Aditya, Jia Haur Wong, Kenneth Eng Kian Lee, Kan Wu, Huy Quoc Lam, Ping Shum |
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| Rok vydání: | 2013 |
| Předmět: | |
| Zdroj: | Journal of Lightwave Technology. 31:1106-1113 |
| ISSN: | 1558-2213 0733-8724 |
| DOI: | 10.1109/jlt.2013.2242194 |
| Popis: | We show analytically as well as experimentally a technique to generate a time- and wavelength interleaved optical pulse-train (TWIPT) with tunable pulsewidth. The technique involves dispersing an initial pulse-train using a standard single-mode-fiber (SMF) followed by sectional dispersion compensation using a tunable multi-channel dispersion compensation module. Using an initial pulse-train with a fixed repetition frequency frep and a tunable multi-channel dispersion compensation module with a fixed frequency spacing between the adjacent channels, our scheme shows that by choosing appropriate value for the length of the SMF, we can generate a N×frep TWIPT in the case when there are N channels within the bandwidth of the initial pulses. By tuning the channel dispersion to be the opposite of the dispersion introduced by the SMF, one is able to generate transform-limited pulsewidths for the TWIPT. Furthermore, tuning the channel dispersion to other values permits pulsewidth tunability. Based on the proposed scheme, using a 2 GHz supercontinuum source as an initial pulse-train, we demonstrate the generation of a 10 × 2 GHz TWIPT with pulsewidth tunability. |
| Databáze: | OpenAIRE |
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