JP4274007B2 - 波長分析装置 - Google Patents
波長分析装置 Download PDFInfo
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- JP4274007B2 JP4274007B2 JP2004072789A JP2004072789A JP4274007B2 JP 4274007 B2 JP4274007 B2 JP 4274007B2 JP 2004072789 A JP2004072789 A JP 2004072789A JP 2004072789 A JP2004072789 A JP 2004072789A JP 4274007 B2 JP4274007 B2 JP 4274007B2
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- wavelength
- fbg
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Description
ここで、λB はFBGで反射される波長、nは、光ファイバの実効屈折率、ΛはFBGの屈折率分布周期を表している。
2、9 光サーキュレータ
4、10 FBG
5 AWG
5、13 温度制御装置
7、14 O/E変換器および信号処理装置
11 CWDM分波器
12 集積化マッハツェンダー型波長フィルタ
Claims (5)
- 光ファイバブラッググレーティング(FBG)に光を入射させ、そのFBGからの反射光を波長フィルタに入射し、その波長フィルタからの光で前記FBGにかかる歪みを検出する波長分析装置において、前記FGBをセンサとして使用する場合に、測定対象の前記FBGからの任意の反射光の中心波長が、測定範囲の中心にくるように温度制御装置で波長フィルタの温度を制御することで必要な感度、測定範囲を確保したうえで、外部から前記FBGに加わる応力を検出することを特徴とする波長分析装置。
- 前記反射光の中心波長が、前記波長フィルタの2つの出力チャンネルの中心波長間の中心にくるように、前記波長フィルタの温度を制御する請求項1記載の波長分析装置。
- 前記波長フィルタが、AWG型波長フィルタである請求項1記載の波長分析装置。
- 前記波長フィルタが、マッハツェンダー型波長フィルタであり、そのマッハツェンダー型波長フィルタの入力側にCWDM分波器が接続される請求項1記載の波長分析装置。
- 前記温度制御装置は、ヒータ又はペルチェ素子を用いて構成されている請求項1記載の波長分析装置。
Priority Applications (1)
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JP2004072789A JP4274007B2 (ja) | 2004-03-15 | 2004-03-15 | 波長分析装置 |
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JP2004072789A JP4274007B2 (ja) | 2004-03-15 | 2004-03-15 | 波長分析装置 |
Publications (2)
Publication Number | Publication Date |
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JP2005257624A JP2005257624A (ja) | 2005-09-22 |
JP4274007B2 true JP4274007B2 (ja) | 2009-06-03 |
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JP2004072789A Expired - Fee Related JP4274007B2 (ja) | 2004-03-15 | 2004-03-15 | 波長分析装置 |
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Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5008182B2 (ja) * | 2006-12-01 | 2012-08-22 | 富士重工業株式会社 | 衝撃探知システム |
JP2008139170A (ja) * | 2006-12-01 | 2008-06-19 | Fuji Heavy Ind Ltd | 衝撃探知システム |
JP4930034B2 (ja) * | 2006-12-15 | 2012-05-09 | 日立電線株式会社 | 物理量測定システム |
KR101271571B1 (ko) * | 2011-11-30 | 2013-06-11 | (주)파이버피아 | 광섬유 브래그 격자 센서를 이용한 선박 모니터링 시스템 |
CN103271724B (zh) * | 2013-04-22 | 2015-02-11 | 天津工业大学 | 一种用于智能服装中的阵列波导光栅解调系统温度补偿方法 |
JP6590410B2 (ja) * | 2016-05-21 | 2019-10-16 | 日鉄溶接工業株式会社 | Fbgを用いる物理量測定装置 |
JP2019078632A (ja) * | 2017-10-24 | 2019-05-23 | 長野計器株式会社 | 光ファイバセンサ測定装置 |
JP7131967B2 (ja) * | 2018-05-30 | 2022-09-06 | 株式会社Subaru | 光検査システム、光検査方法及び航空機構造体 |
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2004
- 2004-03-15 JP JP2004072789A patent/JP4274007B2/ja not_active Expired - Fee Related
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JP2005257624A (ja) | 2005-09-22 |
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