Optical transmitter
US7489838B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2006 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Dec 31, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/50
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical transmitter comprises an array of modulated sources having different operating wavelengths approximating a standardized wavelength grid and providing signal outputs of different wavelengths. Signal outputs of the modulated sources are optically coupled to inputs of the wavelength selective combiner to produce a combined signal output from the combiner. The wavelength selective combiner has a wavelength grid passband response approximating the wavelength grid of the standardized wavelength grid. A first wavelength tuning element is coupled to each of the modulated sources and a second wavelength tuning element is coupled to the wavelength selective combiner. A wavelength monitoring unit is coupled to receive a sampled portion the combined signal output from the wavelength selective combiner. A wavelength control system is coupled to the first and second wavelength tuning elements and to the wavelength monitoring unit to receive the sampled portion of the combined signal output. The wavelength control system adjusts the respective wavelengths of operation of the modulated sources to approximate the standardized wavelength grid and for adjusting the optical combiner wavelen…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.