JP5594192B2 - 光変調器 - Google Patents
光変調器 Download PDFInfo
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- JP5594192B2 JP5594192B2 JP2011050655A JP2011050655A JP5594192B2 JP 5594192 B2 JP5594192 B2 JP 5594192B2 JP 2011050655 A JP2011050655 A JP 2011050655A JP 2011050655 A JP2011050655 A JP 2011050655A JP 5594192 B2 JP5594192 B2 JP 5594192B2
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/355—Non-linear optics characterised by the materials used
- G02F1/3558—Poled materials, e.g. with periodic poling; Fabrication of domain inverted structures, e.g. for quasi-phase-matching [QPM]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference
- G02F1/225—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure
- G02F1/2255—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference in an optical waveguide structure controlled by a high-frequency electromagnetic component in an electric waveguide structure
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/05—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/03—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect
- G02F1/05—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties
- G02F1/0508—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on ceramics or electro-optical crystals, e.g. exhibiting Pockels effect or Kerr effect with ferro-electric properties specially adapted for gating or modulating in optical waveguides
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour by interference
- G02F1/212—Mach-Zehnder type
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/353—Frequency conversion, i.e. wherein a light beam is generated with frequency components different from those of the incident light beams
- G02F1/3544—Particular phase matching techniques
- G02F1/3548—Quasi phase matching [QPM], e.g. using a periodic domain inverted structure
Description
本発明は、図1に示すように、電気光学効果を有する材料で構成される基板1と、該基板に形成された光導波路2と、該光導波路を伝搬する光波を変調するための変調電極3とを有する光変調器において、該光導波路から出射する出射光L2を光ファイバ(不図示)で導波し、該光ファイバの波長分散特性と逆の特性の波形歪を有するように、該光導波路に沿って該基板を所定のパターンで分極反転10させることを特徴とする。
(1)デジタル信号処理技術では対応が困難な40Gbpsを超える高速電子に対応可能
(2)FBG方式のような、波長帯域の制限がない
(3)データ変調器との集積が可能
光ファイバー中を伝搬する光波の位相定数をβ(ω)とすると、長さLの光ファイバの伝達関数H(ω)は、以下の式となる。
H(ω)=exp(jβ(ω)L)
H(ω)=exp(jβ2ω2L/2)
ここで、β2は、テーラー展開の2次の項を意味し、群速度分散を表す。
2 光導波路
21,22 分岐導波路
3 信号電極
10 分極反転パターン
L1 入射光
L2 出射光
S 変調信号
Claims (2)
- 電気光学効果を有する材料で構成される基板と、該基板に形成された光導波路と、該光導波路を伝搬する光波を変調するための変調電極と、該光導波路からの出射光を導波する光ファイバとを有する光変調器において、
該光導波路から出射する該出射光が、該光ファイバの波長分散特性と逆の特性の波形歪を有するように、該光導波路に沿って該基板を所定のパターンで分極反転させる構成であって、該光導波路が2つの分岐導波路を持つマッハツェンダー型導波路を有し、一方の分岐導波路に形成される分極反転のパターンは、該光ファイバのインパルス応答h(t)を補償するインパルス応答1/h(t)の実部応答性に対応するパターンであり、他方の分岐導波路に形成される分極反転のパターンは、前記インパルス応答1/h(t)の虚部応答性に対応するパターンであり、前記2つの分岐導波路を通過した光波を所定の位相差で合波するよう構成されていることを特徴とする光変調器。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011050655A JP5594192B2 (ja) | 2011-03-08 | 2011-03-08 | 光変調器 |
US13/413,432 US8755641B2 (en) | 2011-03-08 | 2012-03-06 | Optical modulator |
CN201210057762.6A CN102681217B (zh) | 2011-03-08 | 2012-03-07 | 光调制器 |
Applications Claiming Priority (1)
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JP2011050655A JP5594192B2 (ja) | 2011-03-08 | 2011-03-08 | 光変調器 |
Publications (2)
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JP2012189630A JP2012189630A (ja) | 2012-10-04 |
JP5594192B2 true JP5594192B2 (ja) | 2014-09-24 |
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JP2011050655A Active JP5594192B2 (ja) | 2011-03-08 | 2011-03-08 | 光変調器 |
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US (1) | US8755641B2 (ja) |
JP (1) | JP5594192B2 (ja) |
CN (1) | CN102681217B (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5594192B2 (ja) * | 2011-03-08 | 2014-09-24 | 住友大阪セメント株式会社 | 光変調器 |
JP5792702B2 (ja) * | 2012-09-26 | 2015-10-14 | 住友大阪セメント株式会社 | 光変調器 |
CN104155779A (zh) * | 2013-05-14 | 2014-11-19 | 鸿富锦精密工业(深圳)有限公司 | 电光调变器 |
CN104167342B (zh) * | 2014-08-14 | 2017-01-25 | 中国科学院电子学研究所 | 速调管功率合成输出装置 |
JP5983839B2 (ja) * | 2015-08-06 | 2016-09-06 | 住友大阪セメント株式会社 | 光変調器 |
JP6597052B2 (ja) * | 2015-08-21 | 2019-10-30 | 住友大阪セメント株式会社 | 光変調器 |
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-
2011
- 2011-03-08 JP JP2011050655A patent/JP5594192B2/ja active Active
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2012
- 2012-03-06 US US13/413,432 patent/US8755641B2/en active Active
- 2012-03-07 CN CN201210057762.6A patent/CN102681217B/zh active Active
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US8755641B2 (en) | 2014-06-17 |
CN102681217A (zh) | 2012-09-19 |
CN102681217B (zh) | 2016-06-22 |
JP2012189630A (ja) | 2012-10-04 |
US20120230625A1 (en) | 2012-09-13 |
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