Depolarised WDM source
US8380064B2 · kind B2 · utility
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24Claims
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Key dates
| Filing date | Mar 15, 2007 |
| Grant date | Feb 19, 2013 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04B10/506
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device and method for depolarising the total field of a wavelength division multiplexed (WDM) signal is provided. A polarization maintaining multiplexor combines a plurality of optical signals to form a polarized multiplexed signal. The multiplexed signal is then passed through a differential group delay (DGD) element adapted to modify the polarization state of one or more optical source signals within the multiplexed signal and thereby to at least partially depolarise the multiplexed signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.