JPH0362323U - - Google Patents
Info
- Publication number
- JPH0362323U JPH0362323U JP12268689U JP12268689U JPH0362323U JP H0362323 U JPH0362323 U JP H0362323U JP 12268689 U JP12268689 U JP 12268689U JP 12268689 U JP12268689 U JP 12268689U JP H0362323 U JPH0362323 U JP H0362323U
- Authority
- JP
- Japan
- Prior art keywords
- directional coupler
- light control
- type light
- coupler type
- length
- 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.)
- Pending
Links
- 239000013307 optical fiber Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 230000003287 optical effect Effects 0.000 description 4
- 239000013078 crystal Substances 0.000 description 1
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Optical Couplings Of Light Guides (AREA)
Description
第１図ａ，ｂは本考案による方向性結合器型光
制御デバイスの一例を示す平面図および断面図、
第２図ａ，ｂは従来の方向性結合器型光制御デバ
イスの一例を示す平面図および断面図である。
図において、１…ニオブ酸リチウム結晶基板、
２，３…光導波路、４…方向性結合器、５…制御
電極、６…バツフア層、７…入射光、８，９…出
射光、１０，１１，１２…光フアイバ、２０，２
１，３０，３１…光導波路、４０，４１…方向性
結合器、５０，５１…制御電極。
FIGS. 1a and 1b are a plan view and a sectional view showing an example of a directional coupler type optical control device according to the present invention,
FIGS. 2a and 2b are a plan view and a sectional view showing an example of a conventional directional coupler type optical control device. In the figure, 1... lithium niobate crystal substrate,
2, 3... Optical waveguide, 4... Directional coupler, 5... Control electrode, 6... Buffer layer, 7... Incident light, 8, 9... Outgoing light, 10, 11, 12... Optical fiber, 20, 2
1, 30, 31... Optical waveguide, 40, 41... Directional coupler, 50, 51... Control electrode.
Claims (1)
方向性結合器型光制御素子が同一の基板上に同時
に形成され、前記方向性結合器の結合部の長さが
最も完全結合長に近い前記方向性結合器型光制御
素子を選択し、光フアイバと光学的に結合したこ
とを特徴とする方向性結合器型光制御デバイス。 A plurality of directional coupler type light control elements having only slightly different lengths of the coupling portions are simultaneously formed on the same substrate, and the length of the coupling portion of the directional coupler is the closest to the perfect coupling length. A directional coupler type light control device, characterized in that a directional coupler type light control element is selected and optically coupled to an optical fiber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12268689U JPH0362323U (en) | 1989-10-21 | 1989-10-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12268689U JPH0362323U (en) | 1989-10-21 | 1989-10-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0362323U true JPH0362323U (en) | 1991-06-18 |
Family
ID=31670676
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12268689U Pending JPH0362323U (en) | 1989-10-21 | 1989-10-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0362323U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002199935A (en) * | 2000-12-28 | 2002-07-16 | Rogosu Corp:Kk | Rucksack |
-
1989
- 1989-10-21 JP JP12268689U patent/JPH0362323U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002199935A (en) * | 2000-12-28 | 2002-07-16 | Rogosu Corp:Kk | Rucksack |
| JP4554069B2 (en) * | 2000-12-28 | 2010-09-29 | 株式会社ロゴスコーポレーション | rucksack |