Optical signal generation with D/A converters and optical clock pulse stream
US8169683B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Sep 29, 2009 |
| Grant date | May 1, 2012 |
| Priority date | — |
| Expiry date | Jun 23, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S359/90
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
An apparatus includes an optical train pulse generator for generating continuous optical pulses each having a narrow width; a clock source having a high frequency for triggering the generator and operable as a sampling clock; a digital-to-analog converter DAC for converting an input signal from a digital signal processor, the DAC responsive to the sampling clock; a data modulator responsive to an amplified output from the DAC to modulate the continuous optical pulses from the train pulse generator; and a filter for removing higher frequency harmonics from the modulated continuous optical pulses out of the data modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.