Bandpass filter by a stretch and double-exposure technique
| Data(s) |
1998
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|---|---|
| Resumo |
We fabricated a bandpass filter based on Moire Bragg grating in fiber with a uniform phase mask We employed a stretch and two-exposure technique, in which the fiber was exposed to UV light from a KrF excimer through a phase mask and then the fiber is stretched and given another exposure at the same region. Due to the stretch, the periods of these two grating are slightly different, and there is a transmission between two reflection peaks at the Bragg wavelength of these two gratings.Applying different stretch can control the bandpass width of the filter. We measured the stretch characterization of a uniform Bragg grating and found the Bragg wavelength of the grating shifts linearly with the stretched length.We theoretically analyzed the grating structure and its reflection spectrum. The filter's characteristics can be optimized by choosing appropriate parameters. We will give a theoretical discussion concerning which parameters and how they affect the filter's operation. We fabricated a bandpass filter based on Moire Bragg grating in fiber with a uniform phase mask We employed a stretch and two-exposure technique, in which the fiber was exposed to UV light from a KrF excimer through a phase mask and then the fiber is stretched and given another exposure at the same region. Due to the stretch, the periods of these two grating are slightly different, and there is a transmission between two reflection peaks at the Bragg wavelength of these two gratings.Applying different stretch can control the bandpass width of the filter. We measured the stretch characterization of a uniform Bragg grating and found the Bragg wavelength of the grating shifts linearly with the stretched length.We theoretically analyzed the grating structure and its reflection spectrum. The filter's characteristics can be optimized by choosing appropriate parameters. We will give a theoretical discussion concerning which parameters and how they affect the filter's operation. 于2010-10-29批量导入 Made available in DSpace on 2010-10-29T06:37:16Z (GMT). No. of bitstreams: 1 3026.pdf: 737680 bytes, checksum: 5433a3c5fb1cafcc0e1ce041f243cb3b (MD5) Previous issue date: 1998 SPIE Int Soc Opt Engn.; COS.; COEMA. Chinese Acad Sci, Inst Semicond, Natl Res Ctr Optoelect Technol, Beijing 100083, Peoples R China SPIE Int Soc Opt Engn.; COS.; COEMA. |
| Identificador | |
| Idioma(s) |
英语 |
| Publicador |
SPIE-INT SOC OPTICAL ENGINEERING 1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA |
| Fonte |
Zhou KM; An G; Ge H; Wang W; Zhang L; Bennion I .Bandpass filter by a stretch and double-exposure technique .见：SPIE-INT SOC OPTICAL ENGINEERING .FIBER OPTIC COMPONENTS AND OPTICAL COMMUNICATIONS II, 3552,1000 20TH ST, PO BOX 10, BELLINGHAM, WA 98227-0010 USA ,1998,49-54 |
| Palavras-Chave | #光电子学 |
| Tipo |
会议论文 |
