PZT fiber optic modulator having a robust mounting and method of making same
US5493623A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1994 |
| Grant date | Feb 20, 1996 |
| Priority date | — |
| Expiry date | Jun 28, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0134
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A piezoelectric fiber optic phase modulator having a mount at a nodal point of the vibratory system of the modulator. The modulator is excited with an electric field applied in a direction parallel to the axis of the modulator or perpendicular to the radial direction of movement of the modulator. In contrast to the mere hollow cylinder modulator of the related art, the modulator of this invention has a web or center structure integral with the inside surface of the cylinder. The modulator here has a rugged mount, low absorption vibration and negligible harmonics at the mount for efficient and high Q functioning, and has rugged electrical connections for dependable operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.