| Paper Abstract and Keywords |
| Presentation |
2005-10-14 13:50
A novel fabrication method of SSFBGs based on the structure identification using least mean square algorithm
Kenji Osada, Masanori Hanawa, Koichi Toda, Kazuhiko Nakamura (Univ of Yamanashi) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
A reflection spectrum of a superstructure fiber Bragg gratings (FBGs) is
strongly dependent on the phase differences between the reflected lights
from sub FBGs. To obtain the desired phase differences, it is neccesary
to control the FBG spacing very precisely in several tens nano meters.
From this reason, it is difficult to make the desired superstructure FBGs.
In this report, a novel method to identify the structure of a
superstructure FBG using the least mean square algorithm is proposed.
Moreover a novel method to make a superstructure FBG using the proposed
identification method is also reported. In this method, the phase
differences of the fabricated superstructure FBG is identified, then the
number of UV pulses to correct them to the desired values is calculated.
Finally the reflactive indices at the gaps between the sub FBGs are corrected in a batch process.
By these methods the requirements to the accuracy of the movable stage to be used in the fabrication process is drastically relaxed and it makes easy to
make the desired superstructure FBGs. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
super structure fiber Bragg grationgs / phase difference / structure identification method / / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 105, no. 333, OFT2005-29, pp. 11-16, Oct. 2005. |
| Paper # |
OFT2005-29 |
| Date of Issue |
2005-10-07 (OFT) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
OFT |
| Conference Date |
2005-10-14 - 2005-10-14 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
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| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
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| Paper Information |
| Registration To |
OFT |
| Conference Code |
2005-10-OFT |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
A novel fabrication method of SSFBGs based on the structure identification using least mean square algorithm |
| Sub Title (in English) |
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| Keyword(1) |
super structure fiber Bragg grationgs |
| Keyword(2) |
phase difference |
| Keyword(3) |
structure identification method |
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| 1st Author's Name |
Kenji Osada |
| 1st Author's Affiliation |
University of Yamanashi (Univ of Yamanashi) |
| 2nd Author's Name |
Masanori Hanawa |
| 2nd Author's Affiliation |
University of Yamanashi (Univ of Yamanashi) |
| 3rd Author's Name |
Koichi Toda |
| 3rd Author's Affiliation |
University of Yamanashi (Univ of Yamanashi) |
| 4th Author's Name |
Kazuhiko Nakamura |
| 4th Author's Affiliation |
University of Yamanashi (Univ of Yamanashi) |
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| Speaker |
Author-2 |
| Date Time |
2005-10-14 13:50:00 |
| Presentation Time |
25 minutes |
| Registration for |
OFT |
| Paper # |
OFT2005-29 |
| Volume (vol) |
vol.105 |
| Number (no) |
no.333 |
| Page |
pp.11-16 |
| #Pages |
6 |
| Date of Issue |
2005-10-07 (OFT) |