JP4677388B2 - 先細光ファイバから製造された4ポート光フィルタ - Google Patents
先細光ファイバから製造された4ポート光フィルタ Download PDFInfo
- Publication number
- JP4677388B2 JP4677388B2 JP2006248629A JP2006248629A JP4677388B2 JP 4677388 B2 JP4677388 B2 JP 4677388B2 JP 2006248629 A JP2006248629 A JP 2006248629A JP 2006248629 A JP2006248629 A JP 2006248629A JP 4677388 B2 JP4677388 B2 JP 4677388B2
- Authority
- JP
- Japan
- Prior art keywords
- optical
- optical fiber
- loop
- port
- tapered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000013307 optical fiber Substances 0.000 title claims description 80
- 230000003287 optical effect Effects 0.000 title claims description 60
- 230000008878 coupling Effects 0.000 claims description 20
- 238000010168 coupling process Methods 0.000 claims description 20
- 238000005859 coupling reaction Methods 0.000 claims description 20
- 230000005499 meniscus Effects 0.000 claims description 8
- 239000012530 fluid Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 230000001902 propagating effect Effects 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 238000002834 transmittance Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 238000001914 filtration Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29331—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by evanescent wave coupling
- G02B6/29335—Evanescent coupling to a resonator cavity, i.e. between a waveguide mode and a resonant mode of the cavity
- G02B6/29338—Loop resonators
- G02B6/2934—Fibre ring resonators, e.g. fibre coils
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
- G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
- G02B6/29383—Adding and dropping
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
- G02B6/29386—Interleaving or deinterleaving, i.e. separating or mixing subsets of optical signals, e.g. combining even and odd channels into a single optical signal
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
- G02B6/2821—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using lateral coupling between contiguous fibres to split or combine optical signals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Description
本発明の重要な1つの利点は、リング共振器が、光ファイバ自体によって形成されることであり、それゆえ、上述した従来技術において教示されたように、先細部分を、単体の球状又は他の形状の共振器に結合する問題が、解消される。加えて、先細光ファイバは従来の単一モードと容易に集積できる。何故なら、先細光ファイバは、本質的には如何なる先細ファイバの直径でも、2者の間で本質的にロスのない遷移を成すことができるからである。更に、エバネッセント場結合を先細光ファイバとともに用いても良い。光ファイバを伝搬して通る光は、光ファイバの先細部分と外部環境との間の境界によって案内されるからである。
F=フリースペクトルレンジ
C=光速
neff=先細胴の基本モードの実効屈折率
L=共振器の周囲長
である。
τ1=入力ポートからスルーポートへの透過係数
τ2=入力ポートからドロップポートへの透過係数
e−αL=結合領域における伝播損失及び過剰損失を考慮した共振器の光路中での光学透過率(round trip transmission)
L=共振器の周囲長
neff=先細胴の基本モードの実効屈折率
λ=波長
である。
12 第1光ファイバ
14 第2光ファイバ
16 ロッド
18、20 先細部分
22、28 ループ
24 入力ポート
26 ドロップポート
30 スルーポート
32 付加ポート
34 共振器
36 メニスカス
37 ループ22及び28が互いに関して固定される箇所
38、42 信号
40、41 エバネッセント場
46、48 ループ22と28との間
Claims (9)
- 第1ループを形成する先細部分を有する第1光ファイバと;
第2ループを形成する先細部分を有する第2光ファイバと;
を有し、
前記第1ループ及び前記第2ループはともに共振器を形成するよう互いに対して位置づけられ、前記の第1及び第2光ファイバのうち一方の中を伝搬する光パワーがエバネッセント場結合により前記共振器へ入力され、
前記第1光ファイバの前記先細部分は、円柱ロッド周りを折り返して前記第1ル―プを形成し、
前記第2光ファイバの前記先細部分は、前記円柱ロッド周りを折り返して前記第2ル―プを形成する、
光デバイス。 - 前記円柱ロッドの少なくとも一部分は前記の各第1及び第2光ファイバの屈折率より少ない屈折率を有する、
請求項1記載の光デバイス。 - 前記第1及び第2光ファイバの前記先細部分は、前記円柱ロッドに対して張力をかけて保持される、
請求項1記載の光デバイス。 - 前記第1光ファイバの前記先細部分はアニールされて前記第1ル―プを形成し、前記第1ループは前記円柱ロッド周りに位置づけられている、
請求項2記載の光デバイス。 - 前記第2光ファイバの前記先細部分はアニールされて前記第2ル―プを形成し、前記第2ループは前記円柱ロッド周りに位置づけられている、
請求項2記載の光デバイス。 - 前記の第1及び第2ループは融合される、
請求項1記載の光デバイス。 - 前記第1ループと前記第2ループとの間にメニスカスが配置される、
請求項1記載の光デバイス。 - 前記メニスカスは流体によって形成される、
請求項7記載の光デバイス。 - 前記メニスカスは液体によって形成され、前記液体はその後硬化して固体を形成する、
請求項7記載の光デバイス。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/226,833 US7177503B1 (en) | 2005-09-14 | 2005-09-14 | Four-port optical filter fabricated from tapered optical fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007079579A JP2007079579A (ja) | 2007-03-29 |
JP4677388B2 true JP4677388B2 (ja) | 2011-04-27 |
Family
ID=37451172
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006248629A Expired - Fee Related JP4677388B2 (ja) | 2005-09-14 | 2006-09-13 | 先細光ファイバから製造された4ポート光フィルタ |
Country Status (5)
Country | Link |
---|---|
US (2) | US7177503B1 (ja) |
EP (1) | EP1764636B1 (ja) |
JP (1) | JP4677388B2 (ja) |
CA (1) | CA2559506C (ja) |
DE (1) | DE602006001178D1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010151973A (ja) * | 2008-12-24 | 2010-07-08 | Fujitsu Ltd | 光半導体装置及びその製造方法、光伝送装置 |
US20100260453A1 (en) * | 2009-04-08 | 2010-10-14 | Block Bruce A | Quality factor (q-factor) for a waveguide micro-ring resonator |
CN103606809B (zh) * | 2013-08-20 | 2015-12-09 | 无锡成电光纤传感科技有限公司 | 一种光纤微环谐振器的制作方法及装置 |
CN104570216B (zh) * | 2014-11-21 | 2018-04-27 | 华中科技大学 | 全光纤滤波器及其制备方法 |
EP3073303B1 (en) * | 2015-03-25 | 2020-05-06 | Aurrion, Inc. | Wavelength locking filter |
US9651737B2 (en) | 2015-09-24 | 2017-05-16 | Harris Corporation | Optical communication system having filter with index selectable material and related methods |
EP3316034A1 (en) * | 2016-11-01 | 2018-05-02 | University of Vienna | Apparatus for generating frequency converted radiation, multi-frequency radiation source, fiber laser, method of generating frequency converted radiation |
CN107069403A (zh) * | 2017-06-08 | 2017-08-18 | 电子科技大学 | 基于级联拉锥氟化物光纤的可调谐中红外锁模光纤激光器 |
CN107526135B (zh) * | 2017-10-19 | 2019-05-03 | 兰州大学 | 基于微纳光纤环形谐振器的上下载滤波器及其制作方法 |
CN111751933A (zh) * | 2020-06-08 | 2020-10-09 | 苏州凯文堡尼光电科技有限公司 | 基于微纳光纤多环谐振器的周期性通带滤波器及制作方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991020007A1 (en) * | 1990-06-15 | 1991-12-26 | Aster Corporation | Miniature fiberoptic bend device and method |
US6580851B1 (en) * | 1998-11-13 | 2003-06-17 | California Institute Of Technology | Resonator fiber bidirectional coupler |
US20050013529A1 (en) * | 2003-07-18 | 2005-01-20 | Chiu Raymond C. | Microring resonator and method for manufacturing |
US6865317B2 (en) * | 2000-02-17 | 2005-03-08 | Xponent Photonics Inc | Resonant optical filters |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5742633A (en) * | 1996-10-02 | 1998-04-21 | Yale University | Asymmetric resonant optical cavity apparatus |
-
2005
- 2005-09-14 US US11/226,833 patent/US7177503B1/en active Active
-
2006
- 2006-09-12 CA CA2559506A patent/CA2559506C/en not_active Expired - Fee Related
- 2006-09-13 EP EP06019199A patent/EP1764636B1/en not_active Expired - Fee Related
- 2006-09-13 JP JP2006248629A patent/JP4677388B2/ja not_active Expired - Fee Related
- 2006-09-13 DE DE602006001178T patent/DE602006001178D1/de active Active
- 2006-10-05 US US11/538,957 patent/US7430348B2/en active Active
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1991020007A1 (en) * | 1990-06-15 | 1991-12-26 | Aster Corporation | Miniature fiberoptic bend device and method |
US5138676A (en) * | 1990-06-15 | 1992-08-11 | Aster Corporation | Miniature fiberoptic bend device and method |
JPH05508033A (ja) * | 1990-06-15 | 1993-11-11 | アスター コーポレーション | 小型光ファイバ湾曲方法及び装置 |
US5452393A (en) * | 1990-06-15 | 1995-09-19 | Aster Corporation | Miniature fiberoptic bend device and method |
US6580851B1 (en) * | 1998-11-13 | 2003-06-17 | California Institute Of Technology | Resonator fiber bidirectional coupler |
US6865317B2 (en) * | 2000-02-17 | 2005-03-08 | Xponent Photonics Inc | Resonant optical filters |
US20050013529A1 (en) * | 2003-07-18 | 2005-01-20 | Chiu Raymond C. | Microring resonator and method for manufacturing |
Also Published As
Publication number | Publication date |
---|---|
EP1764636A1 (en) | 2007-03-21 |
JP2007079579A (ja) | 2007-03-29 |
CA2559506A1 (en) | 2007-03-14 |
DE602006001178D1 (de) | 2008-06-26 |
CA2559506C (en) | 2011-05-31 |
US20070154139A1 (en) | 2007-07-05 |
US7430348B2 (en) | 2008-09-30 |
US7177503B1 (en) | 2007-02-13 |
EP1764636B1 (en) | 2008-05-14 |
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