1. Ultrahigh-channel-count fiber Bragg grating based on the triple sampling method
- Author
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Chen, Xuxing, Hayashi, Junya, and Li, Hongpu
- Subjects
- *
OPTICAL fiber communication , *FIBER optics , *BRAGG gratings , *NUMERICAL analysis , *DISPERSION (Chemistry) , *MATHEMATICAL physics , *WAVELENGTHS - Abstract
Abstract: A triple sampling method to have enabled excellent channel uniformity and high in-band energy efficiency is firstly proposed for the design of an ultrahigh-channel-count fiber Bragg grating (FBG), which is based on the simultaneous utilization of two amplitude-assisted phase sampling (AAPS) functions and a phase-only sampling (POS) function. As an example, one linearly chirped FBG with consecutive 1215 channels enabling to cover all fiber telecom bands (O+E+S+C+L+U) is numerically demonstrated, which has a length of 9cm, a dispersion of −1360ps/nm, and a channel spacing of 50GHz. The maximum index-change required for 10dB strength of the FBG is less than 6×10−3. [Copyright &y& Elsevier]
- Published
- 2011
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