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A Multiexposure Technology for Sampled Bragg Gratings and its Applications in Dual-Wavelength Lasing Generation and OCDMA En/Decoding

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8 Author(s)
Jingsi Li ; Nat. Lab. of Microstructures, Nanjing Univ., Nanjing, China ; Yun Cheng ; Zuowei Yin ; Linghui Jia
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In this letter, a multiexposure technology for sampled Bragg gratings is proposed and investigated for the first time. Combined with reconstruction-equivalent-chirp technology, the useless zeroth-order channel can be eliminated and the plusmn1st-order channels can be enhanced significantly. The proposed method is applied experimentally to achieve a dual-wavelength fiber laser and is studied both numerically and experimentally in two ways for the optical code-division multiple access en/decoding system. Its properties may lead to more efficient design and fabrication of grating-based optical devices.

Published in:

Photonics Technology Letters, IEEE  (Volume:21 ,  Issue: 21 )