PATENT CLAIM ANALYSIS

Application Number: 15765988
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-10
Patent Classification: ["356", "477000"]

Abstract:
The present invention provides devices, systems, and methods for producing bi-photons without the need for complex alignment or source design by the user. The invention provides a tunable source of high-brightness, high-visibility, bi-photons that can be configured for a number of applications.

Claim (Index 1):
A device for generating bi-photons, comprising:\n a nonlinear crystal element comprising a first face, a second face parallel to the first face, and a first axis perpendicular to the first and second faces; a crystal holder configured to mechanically support the crystal and provide a thermal conduit between the crystal and the crystal holder; a thermal element operably connected to the crystal holder to heat and/or cool the crystal holder and the nonlinear crystal element; a thermal sensor operably connected to the crystal holder and configured to measure the temperature of the crystal holder and/or the nonlinear crystal element; a thermal control circuit operably connected to the thermal sensor and the thermal element and configured to control the temperature of the crystal holder to within +/\u22120.1 degrees Celsius; a crystal holder mount configured to mechanically support the crystal holder and thermally isolate the crystal holder from the rest of the device components; a pump focusing optic configured to produce a converging pump beam from the linearly polarized output of a polarization-maintaining optical fiber and provide translational adjustment of the position of the produced pump beam relative to the first axis, the pump beam traversing a first optical path to a first face of the nonlinear crystal element along the first axis, the nonlinear crystal element providing down-conversion of a subset of photons in the pump beam, resulting in a beam of down-converted bi-photons and a beam of non-down-converted photons along the first axis; an optical element comprising a dichroic reflector configured to receive photons exiting a second face of the nonlinear crystal element along the first axis and to direct down-converted bi-photons to a third optical path along the first axis, and to reflect non-down-converted photons to a fourth optical path along a third axis; and a bi-photon focusing optic configured to collect the down-converted photons into an optical fiber and provide adjustment of the optical fiber's optical axis relative to the first axis.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 91.0
- Lexical Diversity: 1.41176
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15306991', '11900347', '10502773', '12530325', '13113458']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6798026720371753
- 35 USC 102 Novelty (BERT): 0.5580209543828694
- Combined Prediction Score: 0.6676245002717447
- Mean Citation Score: 296.6156180000001
- Max Citation Score: 448.4305
- Similarity Product: 309.23373959901926

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 0
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test