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METHOD AND DEVICE FOR IDENTIFYING BRAGG GRATING STRUCTURE AND MANUFACTURING METHOD THEREOF

外国特許コード F070001651
整理番号 F070001651
掲載日 2007年9月7日
出願国 世界知的所有権機関(WIPO)
国際出願番号 2006JP302909
国際公開番号 WO 2007/004339
国際出願日 平成18年2月14日(2006.2.14)
国際公開日 平成19年1月11日(2007.1.11)
優先権データ
  • 特願2005-257777 (2005.9.6) JP
  • 特願2005-194118 (2005.7.1) JP
発明の名称 (英語) METHOD AND DEVICE FOR IDENTIFYING BRAGG GRATING STRUCTURE AND MANUFACTURING METHOD THEREOF
発明の概要(英語) Structure of the super-grating structure fiber Bragg grating (FBG) is identifiedand by using the identification method, a super-grating structure FBG temporarilycreated is subjected to phase trimming. A continuous light is introduced to oneend of the super-grating structure FBG (10) whose structure is to be identifiedand a measured spectrum D () of the reflected light outputted from thatend is measured by an optical spectrum analyzer (11). On the other hand, an analysisspectrum H () of Fourier analysis model of the super-grating structureFBG is calculated. The spectrum D () is compared tot he spectrum H ()and the parameter of the Fourier analysis model is updated by the method of leastsquares (LMS) algorithm to make a final decision. Since the structure (characteristics)of the temporarily created super-grating structure FBG is identified, thisis compared to a desired structure (characteristics) and subjected to phasetrimming, thereby obtaining a super-grating structure FBG having desired characteristics.
  • 出願人(英語)
  • ※2012年7月以前掲載分については米国以外のすべての指定国
  • University Of Yamanashi
  • 発明者(英語)
  • Hanawa, Masanori
国際特許分類(IPC)
指定国 AE AG AL AM AT AU AZ BA BB BE BF BG BJ BR BW BY BZ CA CF CG CH CI CM CN CO CR CU CY CZ DE DK DM DZ EC EE EG ES FI FR GA GB GD GE GH GM GN GQ GR GW HR HU ID IE IL IN IS IT JP KE KG KM KN KP KR KZ LC LK LR LS LT LU LV LY MA MC MD MG MK ML MN MR MW MX MZ NA NE NG NI NL NO NZ OM PG PH PL PT RO RU SC SD SE SG SI SK SL SM SN SY SZ TD TG TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW
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