Acousto-optic tunable filter controller
US7142735B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 22, 2005 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Apr 22, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/33
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
AOTF controller that monitors output power of a plurality of wavelengths of an AOTF and scans the frequency of corresponding RF input signals to an AOTF acoustic transducer and searches for the RF frequency corresponding to each desired wavelength that provides maximum optical output for each wavelength. The controller includes a plurality of sensor inputs for monitoring the power of each wavelength output from the AOTF, and alternatively, also monitors other AOTF parameters such as temperature and/or reads AOTF identification performance data that can be stored in a EPROM on a AOTF housing. The controller includes facility for input of modulation data, and in response to the data modulates the corresponding wavelength parameter such as power. A USB bus is provided for input of programming to the controller, and for output of performance data from the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.