| Presentation | 2014-01-24 Accurate fabrication of low-loss SFBGs assisted by multivariate structure identification Tomoya HAGIHARA, Masanori HANAWA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Phase differences between two FBGs of low-loss sampled fiber Bragg gratings (SFBGs) are identified and the phase differences are calibrated by the phase trimming method. The phase differences, which are determined by optical lengths between two adjacent FBGs, are the most important parameter in SFBG fabrication. The frequency of estimation error of phase difference within 0.05π for low-loss 4-chip SFBGs has been improved from 56% to 78% by using the downhill simplex method (DHS) instead of LMS algorithm. The calculation amount was also reduced 40 times. The average of maximum phase error for fabricated low-loss 4-chip SFBGs was 0.14π by using the DHS. In addition, fabrication result of low-loss 8-chip SFBG is shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Sampled FBG / Multivariate structure identification / Phase difference / Phase trimming |
| Paper # | PN2013-75,OPE2013-189,LQE2013-175,EST2013-124,MWP2013-95 |
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| Conference Information | |
| Committee | OPE |
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| Conference Date | 2014/1/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Optoelectronics (OPE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Accurate fabrication of low-loss SFBGs assisted by multivariate structure identification |
| Sub Title (in English) | |
| Keyword(1) | Sampled FBG |
| Keyword(2) | Multivariate structure identification |
| Keyword(3) | Phase difference |
| Keyword(4) | Phase trimming |
| 1st Author's Name | Tomoya HAGIHARA |
| 1st Author's Affiliation | University of Yamanashi() |
| 2nd Author's Name | Masanori HANAWA |
| 2nd Author's Affiliation | University of Yamanashi |
| Date | 2014-01-24 |
| Paper # | PN2013-75,OPE2013-189,LQE2013-175,EST2013-124,MWP2013-95 |
| Volume (vol) | vol.113 |
| Number (no) | 394 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |