Arrayed waveguide grating
US6445853B1 · kind B1 · utility
5Cited by
3References
4Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 13, 2000 |
| Grant date | Sep 3, 2002 |
| Priority date | — |
| Expiry date | Oct 12, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12023
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An arrayed waveguide grating comprise at least two half-wavelength plates 8a1 and 8a2 crossing the center in the length direction of the plurality of arrayed waveguides 4 disposed in series in the vertical direction of the arrayed waveguides 4. By these half-wavelength plates 8a1 and 8a2, a polarization mode conversion part to convert the TE mode and TM mode of signal beams to be transmitted through the arrayed waveguides 4 is formed. The arrayed waveguides 4 are divided into a group of arrayed waveguides 4 crossed by the half-wavelength plate 8a1 and a group of arrayed waveguides 4 crossed by the half-wavelength plate 8a2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.