Advances in Engineering Advances in Engineering features breaking research judged by Advances in Engineering advisory team to be of key importance in the Engineering field. Papers are selected from over 10,000 published each week from most peer reviewed journals.
Optics Express, Vol. 21, Issue 12, pp. 14808-14815 (2013).
Hang-Zhou Yang, Kok-Sing Lim, Xue-Guang Qiao, Wu-Yi Chong, Yew-Ken Cheong, Weng-Hong Lim, Wei-Sin Lim, and Harith Ahmad.
Photonics Research Centre, Dept. of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia and
Dept. of Physics, Northwest University, Xi’an, Shaanxi 710069, China.
Abstract
We present a new theoretical model for the broadband reflection spectra of etched FBGs which includes the effects of axial contraction and stress-induced index change. The reflection spectra of the etched FBGs with several different taper profiles are simulated based on the proposed model. In our observation, decaying exponential profile produces a broadband reflection spectrum with good uniformity over the range of 1540-1560 nm. An etched FBG with similar taper profile is fabricated and the experimental result shows good agreement with the theoretical model.
© 2013 OSA
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