Wavelength division multiplexing optical receiver
US-2015381301-A1 · Dec 31, 2015 · US
Modal rotation in optical waveguides
US9329344B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9329344-B2 |
| Application number | US-201414496489-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 25, 2014 |
| Priority date | Mar 14, 2013 |
| Publication date | May 3, 2016 |
| Grant date | May 3, 2016 |
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Abstract
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An optical waveguide structure includes a rotator having a dual-layer core. A first layer of the dual-layer core may include a tapering portion. A second layer of the dual-layer core may include a rib portion disposed on the tapering portion. The combination of the rib portion and the tapering portion may receive a pair of optical signals, one being polarized in a TE mode and the other being polarized in a TM mode, and convert them to a pair of TE mode optical signals.
First claim
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We claim: 1. An apparatus comprising: an optical waveguide structure configured to transmit a pair of optical signals in guided modes, the optical waveguide structure comprising a rotator that comprises a dual-layer core comprising a first layer disposed on a substrate and a second layer disposed on the first layer, wherein the first layer comprises a base portion that inversely tapers from a first end to a second end of the core such that a width of the base portion at the firs…
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- What does patent US9329344B2 cover?
- An optical waveguide structure includes a rotator having a dual-layer core. A first layer of the dual-layer core may include a tapering portion. A second layer of the dual-layer core may include a rib portion disposed on the tapering portion. The combination of the rib portion and the tapering portion may receive a pair of optical signals, one being polarized in a TE mode and the other being po…
- Who is the assignee on this patent?
- Cisco Tech Inc
- What technology area does this patent fall under?
- Primary CPC classification G02B6/126. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue May 03 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).