Photoconductive antenna, terahertz wave generating device, camera, imaging device, and measuring device
US-2015340560-A1 · Nov 26, 2015 · US
Self-registered comb laser source
US8969788B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8969788-B2 |
| Application number | US-201213717339-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 17, 2012 |
| Priority date | Dec 17, 2012 |
| Publication date | Mar 3, 2015 |
| Grant date | Mar 3, 2015 |
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Abstract
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An integrated optical source is described. This optical source outputs one or more optical signals that provide a comb of wavelengths for use in wavelength-division-multiplexing (WDM) optical interconnects or links. In particular, a shared echelle grating is used as a wavelength-selective filter or control device for multiple lasing cavities to achieve self-registered and accurate lasing-channel spacing without inter-channel gain competition. Furthermore, the optical source can be used to provide all the wavelength channels in one optical waveguide or in separate optical waveguides. Therefore, the optical source may be used with cascaded ring-resonator modulators and/or electro-absorption-based broadband modulators.
First claim
Opening claim text (preview).
What is claimed is: 1. An optical source, comprising: a first mirror configured to at least partially reflect a first optical signal having multiple wavelengths; a first optical waveguide optically coupled to the first mirror, configured to convey the first optical signal; a wavelength-control device, wherein the wavelength-control device includes: a first optical port configured to couple to the first optical waveguide; a propagation region configured to convey the first o…
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Frequently asked questions
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- What does patent US8969788B2 cover?
- An integrated optical source is described. This optical source outputs one or more optical signals that provide a comb of wavelengths for use in wavelength-division-multiplexing (WDM) optical interconnects or links. In particular, a shared echelle grating is used as a wavelength-selective filter or control device for multiple lasing cavities to achieve self-registered and accurate lasing-channe…
- Who is the assignee on this patent?
- Oracle Int Corp
- What technology area does this patent fall under?
- Primary CPC classification H01L31/16. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Mar 03 2015 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).