Optical-coupler based modulation-averaging structures for self-seeded colorless WDM-PON
US9667026B2 · kind B2 · utility
1Cited by
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9Claims
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Key dates
| Filing date | Sep 1, 2015 |
| Grant date | May 30, 2017 |
| Priority date | — |
| Expiry date | Oct 21, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04Q2011/0032
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A connected optical waveguide structure comprises n four-port optical couplers, where n is greater than one; and n waveguide loops, each loop having a corresponding perimeter; wherein each of the n perimeters is different from each of the other n−1 perimeters. In one embodiment, for any pair of the n loops, the ratio of the larger perimeter to the smaller perimeter is greater than five halves (5/2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.