JP4792309B2 - 電気光学素子 - Google Patents
電気光学素子 Download PDFInfo
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- JP4792309B2 JP4792309B2 JP2006081595A JP2006081595A JP4792309B2 JP 4792309 B2 JP4792309 B2 JP 4792309B2 JP 2006081595 A JP2006081595 A JP 2006081595A JP 2006081595 A JP2006081595 A JP 2006081595A JP 4792309 B2 JP4792309 B2 JP 4792309B2
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- electro
- cathode
- crystal
- anode
- optic
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- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
Description
ΔΦ=2π×Δn×L/λ
と表される。さらに、Δnは、
Δn=−0.5n3rE
と表される。ここで、Eは導波路に印加された電界、rは一次の電気光学係数、nは屈折率である。
11 導波路
12a,22a,42a,52a,62a,72a 陽極
12b,22b,42b,52b,62b,72b 陰極
20,40,50,60,70 KTN結晶
Claims (5)
- 電気光学結晶を用いた電気光学素子において、
前記電気光学結晶に電界を印加するための陽極および陰極を備え、
前記陽極の前記電気光学結晶との接触面積は、前記陰極の前記電気光学結晶との接触面積より狭く、
前記電気光学結晶はKTa 1−x Nb x O 3 (0<x<1)またはK 1−y Li y Ta 1−x Nb x O 3 (0<x<1,0<y<0.1)のいずれかであり、該電気光学結晶を常誘電相で用いることを特徴とする電気光学素子。 - 前記陽極の、前記電気光学結晶を通過する光の進行方向に垂直な方向の幅は、前記陰極の幅より狭いことを特徴とする請求項1に記載の電気光学素子。
- 前記陽極の幅は、前記陽極および陰極間の間隔より狭く、前記陰極の幅は、前記陽極および陰極間の間隔より広いことを特徴とする請求項2に記載の電気光学素子。
- 前記陽極は、光の進行方向に平行に、複数に分割されていることを特徴とする請求項1、2または3に記載の電気光学素子。
- 前記陰極は、光の進行方向に平行に、複数に分割されていることを特徴とする請求項1、2または3に記載の電気光学素子。
Priority Applications (1)
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JP2006081595A JP4792309B2 (ja) | 2006-03-23 | 2006-03-23 | 電気光学素子 |
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JP2006081595A JP4792309B2 (ja) | 2006-03-23 | 2006-03-23 | 電気光学素子 |
Publications (2)
Publication Number | Publication Date |
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JP2007256675A JP2007256675A (ja) | 2007-10-04 |
JP4792309B2 true JP4792309B2 (ja) | 2011-10-12 |
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ID=38630968
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JP2006081595A Expired - Fee Related JP4792309B2 (ja) | 2006-03-23 | 2006-03-23 | 電気光学素子 |
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JP (1) | JP4792309B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4908387B2 (ja) * | 2007-12-04 | 2012-04-04 | 日本電信電話株式会社 | 光変調器 |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2805027B2 (ja) * | 1992-08-05 | 1998-09-30 | 日本電信電話株式会社 | 導波路型光変調器 |
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2006
- 2006-03-23 JP JP2006081595A patent/JP4792309B2/ja not_active Expired - Fee Related
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