JPS559534A - Optical fiber device - Google Patents
Optical fiber deviceInfo
- Publication number
- JPS559534A JPS559534A JP8206878A JP8206878A JPS559534A JP S559534 A JPS559534 A JP S559534A JP 8206878 A JP8206878 A JP 8206878A JP 8206878 A JP8206878 A JP 8206878A JP S559534 A JPS559534 A JP S559534A
- Authority
- JP
- Japan
- Prior art keywords
- light
- outside
- optical fiber
- refractive index
- elastic film
- 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
Landscapes
- Liquid Crystal (AREA)
Abstract
PURPOSE: To reduce size and facilitate production without degrading propagation charcteristics of light by removing the minute portion of the clad part of an optical fiber and interposing a medium in this minute portion.
CONSTITUTION: The clad part 2 of an optical fiber is partially removed and a film 9 having a refractive index higher than that of the core part 1 and elasticity is installed in this portion. This elastic film 9 is pressed by a piston 10 to draw out light to the outside. When this elastic film 9 is not in contact to the core part 1, the light L1 does not radiate light to the outside. As against this, in the state where the elastic film 9 is pressed by the piston 10, the refractive index of the outside becomes higher than the refractive index of the core part 1 and therefore part of the propagating light L2 is radiated to the outside through that portion. In this way, light is drawn out only at the desired time and therefore the device may be miniaturized and its production facilitated without degrading the propagation characteristics of light.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8206878A JPS559534A (en) | 1978-07-07 | 1978-07-07 | Optical fiber device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8206878A JPS559534A (en) | 1978-07-07 | 1978-07-07 | Optical fiber device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS559534A true JPS559534A (en) | 1980-01-23 |
Family
ID=13764161
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8206878A Pending JPS559534A (en) | 1978-07-07 | 1978-07-07 | Optical fiber device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS559534A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61210321A (en) * | 1985-03-15 | 1986-09-18 | Nippon Hoso Kyokai <Nhk> | Optical element |
JP2004212998A (en) * | 2002-12-26 | 2004-07-29 | Fujitsu Ltd | Variable attenuator |
JP2007532952A (en) * | 2004-04-09 | 2007-11-15 | オプティマー・フォトニックス・インコーポレーテッド | Control method of optical signal in optical functional waveguide structure |
JP2011164341A (en) * | 2010-02-09 | 2011-08-25 | Stanley Electric Co Ltd | Optical device |
-
1978
- 1978-07-07 JP JP8206878A patent/JPS559534A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61210321A (en) * | 1985-03-15 | 1986-09-18 | Nippon Hoso Kyokai <Nhk> | Optical element |
JP2004212998A (en) * | 2002-12-26 | 2004-07-29 | Fujitsu Ltd | Variable attenuator |
JP4557543B2 (en) * | 2002-12-26 | 2010-10-06 | 富士通株式会社 | Variable optical attenuator |
JP2007532952A (en) * | 2004-04-09 | 2007-11-15 | オプティマー・フォトニックス・インコーポレーテッド | Control method of optical signal in optical functional waveguide structure |
JP2011164341A (en) * | 2010-02-09 | 2011-08-25 | Stanley Electric Co Ltd | Optical device |
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