Method and device for measuring the transmission loss and optical waveguide
US5133597A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1990 |
| Grant date | Jul 28, 1992 |
| Priority date | — |
| Expiry date | Dec 26, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M11/35
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device and method for measuring transmission loss in an optical waveguide. The device includes a base on which an optical waveguide can be secured. A first clamp is mounted on the base so that the first clamp can be fixed relative to the secured waveguide. The first clamp secures the first prism for coupling with the waveguide so that the first prism can guide light to enter the waveguide. A second clamp is mounted on the base so that the second clamp can alternatively be fixed or shifted relative to the waveguide. A second prism is secured to the second clamp for coupling with the waveguide so that part of the light in the waveguide exits by way of the second prism. Also provided is a device for adjusting the distance between the first and second prisms, a first sensor for detecting the optical power of the light exited from the waveguide through the second prism and a second sensor for detecting the optical power of the light exiting the waveguide through the waveguide's rear end face.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.