Transmissive Fiber Bragg Grating-Based Delay Line Interferometer for RZ-OOK to NRZ-OOK Format Conversion
Autor: | Jiabi Xiong, Hui Cao, Xin Liu, Yu Yu, Miguel A. Preciado, Adenowo Gbadebo, Zuowei Xu, Lin Zhang, Xuewen Shu |
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Jazyk: | angličtina |
Rok vydání: | 2019 |
Předmět: |
Materials science
Optical fiber General Computer Science 02 engineering and technology Grating 01 natural sciences law.invention 010309 optics 020210 optoelectronics & photonics Optics optical fiber communication Fiber Bragg grating law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering General Materials Science Fiber Optical filter fiber optics optical signal processing business.industry General Engineering Bragg gratings optical fiber devices Keying Delay line interferometer Laser lcsh:Electrical engineering. Electronics. Nuclear engineering business lcsh:TK1-9971 |
Zdroj: | IEEE Access, Vol 7, Pp 140300-140304 (2019) |
ISSN: | 2169-3536 |
Popis: | We propose a return-to-zero on-off keying (RZ-OOK) to non-return-to-zero (NRZ) OOK conversion scheme based on a transmissive phase-modulated fiber Bragg grating (PM-FBG). The PM-FBG has a spectrum similar to the combination of a delay line interferometer and a narrow band optical filter, which is designed and synthesized using numerical optimization algorithm. The coupling strength of the PM-FBG is almost uniform and the grating period varies along the fiber length according to the optimization method. The designed PM-FBG has been fabricated using advanced ultraviolet laser inscription technique. Experimental results show that such a PM-FBG can perform RZ-OOK to NRZ-OOK format conversion successfully. |
Databáze: | OpenAIRE |
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