JPS61188103U - - Google Patents
Info
- Publication number
- JPS61188103U JPS61188103U JP5832286U JP5832286U JPS61188103U JP S61188103 U JPS61188103 U JP S61188103U JP 5832286 U JP5832286 U JP 5832286U JP 5832286 U JP5832286 U JP 5832286U JP S61188103 U JPS61188103 U JP S61188103U
- Authority
- JP
- Japan
- Prior art keywords
- core
- cladding
- refractive index
- thermal expansion
- expansion coefficient
- 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
- 238000005253 cladding Methods 0.000 claims 4
- 230000005540 biological transmission Effects 0.000 claims 2
- 230000003287 optical effect Effects 0.000 claims 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims 1
- 239000011521 glass Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 239000002019 doping agent Substances 0.000 description 2
Landscapes
- Glass Compositions (AREA)
Description
第１図は本考案を説明するためのドーパント添
加量と屈折率変化の関係を示す図、第２図はドー
パント添加量と熱膨張係数の変化の関係を示す図
である。
FIG. 1 is a diagram showing the relationship between the amount of dopant added and the change in the refractive index for explaining the present invention, and FIG. 2 is a diagram showing the relationship between the amount of dopant added and the change in the coefficient of thermal expansion.
Claims (1)
有する光伝送線において、屈折率増大用のＧｅＯ
２を２５ｗｔ％以上含有した所定熱膨張係数のＳ
ｉＯ２をコアとし、該コアと略等価の熱膨張係数
を有するよう調整された量の屈折率低減用のＢ２
Ｏ３を含有してなるＳｉＯ２をクラツドとし、前
記コアおよびクラツドをそれらの熱膨張係数に対
して、Ｂ２Ｏ３を４ｗｔ％以上含有することによ
り１６．５×１０−７／℃以内の膨張率差をもつ
た耐熱性ガラス管中に構成してなることを特徴と
する光伝送線。 In an optical transmission line having a core and a cladding with a lower refractive index than the core, GeO for increasing the refractive index is used.
S with a predetermined thermal expansion coefficient containing 25 wt% or more of 2
A core of iO 2 and an amount of B 2 for reducing the refractive index adjusted to have a coefficient of thermal expansion approximately equivalent to that of the core.
By using SiO 2 containing O 3 as a cladding and containing 4 wt% or more of B 2 O 3 in the core and cladding, the thermal expansion coefficient of the core and cladding is within 16.5×10 −7 /°C. An optical transmission line characterized by being constructed in a heat-resistant glass tube with a difference in expansion coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5832286U JPS61188103U (en) | 1986-04-17 | 1986-04-17 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5832286U JPS61188103U (en) | 1986-04-17 | 1986-04-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61188103U true JPS61188103U (en) | 1986-11-22 |
Family
ID=30583716
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5832286U Pending JPS61188103U (en) | 1986-04-17 | 1986-04-17 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61188103U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233546A (en) * | 1975-09-08 | 1977-03-14 | Corning Glass Works | Optical fiber containing p2* 05 and ge02 |
| JPS5288349A (en) * | 1976-01-20 | 1977-07-23 | Nippon Selfoc Co Ltd | Optical fiber for communication |
-
1986
- 1986-04-17 JP JP5832286U patent/JPS61188103U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233546A (en) * | 1975-09-08 | 1977-03-14 | Corning Glass Works | Optical fiber containing p2* 05 and ge02 |
| JPS5288349A (en) * | 1976-01-20 | 1977-07-23 | Nippon Selfoc Co Ltd | Optical fiber for communication |
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