Scan pattern and signal processing for optical coherence tomography
US-2023363640-A1 · Nov 16, 2023 · US
Intensity noise reduction methods and apparatus for interferometric sensing and imaging systems
US8948613B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8948613-B2 |
| Application number | US-201113050410-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 17, 2011 |
| Priority date | Mar 17, 2010 |
| Publication date | Feb 3, 2015 |
| Grant date | Feb 3, 2015 |
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Abstract
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In part, aspects of the invention relate to methods, apparatus, and systems for intensity and/or pattern line noise reduction in a data collection system such as an optical coherence tomography system that uses an electromagnetic radiation source and interferometric principles. In one embodiment, the noise is intensity noise or line pattern noise and the source is a laser such as a swept laser. One or more attenuators responsive to one or more control signals can be used in conjunction with an analog or digital feedback network in one embodiment.
First claim
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What is claimed is: 1. A method of reducing or suppressing intensity noise from a laser source in an optical coherence tomography system, the method comprising transmitting light from a laser to an interferometer, the laser having a sweep period, the interferometer having a reference arm and a sample arm, wherein light emitted by the laser is amplitude modulated at a fixed frequency to create a first signal in a reference arm of the interferometer; generating a plurality of phot…
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Physics · mapped topic
Electricity · mapped topic
Physics · mapped topic
- G01B9/02074Primary
Physics · mapped topic
- H03G3/3084Primary
Electricity · mapped topic
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- What does patent US8948613B2 cover?
- In part, aspects of the invention relate to methods, apparatus, and systems for intensity and/or pattern line noise reduction in a data collection system such as an optical coherence tomography system that uses an electromagnetic radiation source and interferometric principles. In one embodiment, the noise is intensity noise or line pattern noise and the source is a laser such as a swept laser.…
- Who is the assignee on this patent?
- Schmitt Joseph M, Grinberg Victor, Lightlab Imaging Inc
- What technology area does this patent fall under?
- Primary CPC classification G01B9/02074. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Feb 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).