Optical fiber test instrument with mechanically positioned attenuator
US5589933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 1994 |
| Grant date | Dec 31, 1996 |
| Priority date | — |
| Expiry date | Oct 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3594
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical test instrument, for testing response of an optical medium to optical energy, comprises a light source for emitting optical energy in response to electrical energy, a detector for providing an electrical output signal in response to incident optical energy, and a propagation path for delivering optical energy from the light source to the medium under test and for delivering optical energy from the medium under test to the detector. A positioning mechanism displaces an optical attenuator element between a first position, in which it is out of the propagation path, and a second position, in which it is interposed in a segment of the path in which the optical energy is propagated as a beam.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.