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Novel B/Ge codoped photosensitive fibres and their dispersion compensation applications

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Czechoslovak Journal of Physics Aims and scope

Abstract

A novel B/Ge codoped fibre was proposed, which also has photosensitive depressed inner cladding. The transmission spectrum of written grating in this fibre verified its strong photosensitivity and suppression of cladding mode coupling. After taking the diffraction into account, a more exact equation of the Bragg wavelength tuning theory of phase mask method was given. Then 8 cascaded fibre Bragg gratings centered at different wavelengths were successfully written with 248 nm KrF excimer laser and one piece of 1067 nm phase mask. By tilting the phase mask, chirp was also written in each grating. At last, it compensated the dispersion of 44 km single mode fibre in the 8 × 10 Gbit/s wavelength division multiplexing system successfully.

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Authors and Affiliations

  1. Network Technology Research Center, School of Electrical and Electronic Engineering, Nanyang Technological University, 639798, Singapore

    Yandong Gong & Ping Shum

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  1. Yandong Gong
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  2. Ping Shum
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Gong, Y., Shum, P. Novel B/Ge codoped photosensitive fibres and their dispersion compensation applications. Czech J Phys 51, 163–173 (2001). https://doi.org/10.1023/A:1002809601693

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  • DOI: https://doi.org/10.1023/A:1002809601693

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