Integrated delay line for optical coherence tomography
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United States of America Patent
Stats
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Jun 14, 2016
Grant Date -
May 1, 2014
app pub date -
Jun 28, 2012
filing date -
Jun 28, 2011
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A system includes a waveguide that guides a beam of radiation, a variable delay unit, and a polarization-dependent modulating unit. The variable delay unit modulates the refractive index in a region, and the waveguide makes a plurality of passes through the region. The polarization-dependent element compensates for birefringence associated with the beam of radiation and includes a polarization splitter and a plurality of modulating elements. The polarization splitter has a first arm and a second arm that each include modulation segments. The beam of radiation is split between the first arm and the second arm and recombined after traversing the modulation segments. The recombination of the beam generates a first polarized beam of radiation and a second polarized beam of radiation. The plurality of modulating elements apply a first and second modulation to the first polarized beam of radiation and the second polarized beam of radiation respectively.
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Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- A61B Class
- 9.65 % this patent is cited more than
- 9 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 14, 2027 |
