JPS5458044A - Trasmission loss meter for optical waveguide - Google Patents
Trasmission loss meter for optical waveguideInfo
- Publication number
- JPS5458044A JPS5458044A JP12480577A JP12480577A JPS5458044A JP S5458044 A JPS5458044 A JP S5458044A JP 12480577 A JP12480577 A JP 12480577A JP 12480577 A JP12480577 A JP 12480577A JP S5458044 A JPS5458044 A JP S5458044A
- Authority
- JP
- Japan
- Prior art keywords
- prism
- waveguide
- decouple
- decoupling
- metering
- 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.)
- Granted
Links
Landscapes
- Testing Of Optical Devices Or Fibers (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
PURPOSE: To make it possible to effect such compensation as can always make the decoupling efficiency of a metering output prism constant by providing a monitoring prism at a distance from a metering output prism.
CONSTITUTION: The incident light of a preset quantity, which has passed through a input decouple prism 4 fixed by fixing jig 5, propagates through an optical waveguide 2 for a thin film to be metered, which is placed upon a substrate 3, and further passes through an output decouple prism 7, which is placed at a selected position of the waveguide 2 by means of a jig 8, so that it may be detected by an optical detector 11 and so that the transmission loss of the waveguide 2 is metered. On the other hand, the transmission loss is monitored by the decouple prism 12 and an optical detector 15, the former of which is fixed at a more distant position than the prism 7. The decoupling effeciency variation of the prism 7 due to the variation in the air gap between the prism 7 and the waveguide 2 during movement of the set position of the prism 7 is easily compensated by the monitor through the prism 12, which has a constant decoupling efficiency, thus improving the metering accuracy
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12480577A JPS5948335B2 (en) | 1977-10-17 | 1977-10-17 | Optical waveguide propagation loss measuring device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12480577A JPS5948335B2 (en) | 1977-10-17 | 1977-10-17 | Optical waveguide propagation loss measuring device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5458044A true JPS5458044A (en) | 1979-05-10 |
JPS5948335B2 JPS5948335B2 (en) | 1984-11-26 |
Family
ID=14894550
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12480577A Expired JPS5948335B2 (en) | 1977-10-17 | 1977-10-17 | Optical waveguide propagation loss measuring device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5948335B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5133597A (en) * | 1990-12-26 | 1992-07-28 | Industrial Technology Research Institute | Method and device for measuring the transmission loss and optical waveguide |
DE10219670A1 (en) * | 2002-02-15 | 2003-08-28 | Schleifring Und Appbau Gmbh | Device for transmitting modulated optical signals between first and second units causes the first unit to rotate against the second unit. |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62100130U (en) * | 1985-12-17 | 1987-06-25 |
-
1977
- 1977-10-17 JP JP12480577A patent/JPS5948335B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5133597A (en) * | 1990-12-26 | 1992-07-28 | Industrial Technology Research Institute | Method and device for measuring the transmission loss and optical waveguide |
DE10219670A1 (en) * | 2002-02-15 | 2003-08-28 | Schleifring Und Appbau Gmbh | Device for transmitting modulated optical signals between first and second units causes the first unit to rotate against the second unit. |
Also Published As
Publication number | Publication date |
---|---|
JPS5948335B2 (en) | 1984-11-26 |
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