PATENT CLAIM ANALYSIS

Application Number: 15778607
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["250", "251000"]

Abstract:
A laser-source assembly that is configured to illuminate a vacuum chamber containing atoms in the gaseous state so as to implement a cold-atom inertial sensor, the atoms having at least two fundamental levels that are separated by a fundamental frequency difference comprised between 1 and a few gigahertz, the assembly comprises: a master laser that emits a beam having a master frequency; a first control loop that is configured to stabilize the master frequency of the master laser on a frequency corresponding to half a set frequency of an atomic transition between a fundamental level and an excited level of the atoms; a slave laser that has a slave frequency; and a second control loop that is configured to stabilize the slave frequency of the slave laser with respect to the master frequency, the slave frequency being offset with respect to the master frequency successively, over time, by a first preset offset value, a second preset offset value, and a third preset offset value, the offset values being comprised in an interval equal to half the fundamental frequency difference plus or minus a few hundred MHz.

Claim (Index 1):
A laser-source assembly that is configured to illuminate a vacuum chamber (E) containing atoms (At) in the gaseous state so as to implement a cold-atom inertial sensor, said atoms having at least two fundamental levels that are separated by a fundamental frequency difference (\u03b4f 0 ) comprised between 1 and a few gigahertz, said assembly comprising:\n a master laser (Lm) that emits a beam having a master frequency (fm); a first control loop (BA1) that is configured to stabilize the master frequency of the master laser on a frequency corresponding to half a set frequency of an atomic transition between a fundamental level and an excited level of said atoms; a slave laser (Le) that has a slave frequency (fe); and a second control loop (BA2) that is configured to stabilize the slave frequency of the slave laser with respect to the master frequency (fm), said second control loop (BA2) being made up of an optical phase-locked loop (OPLL) that is configured to achieve the stabilization on the basis of an error signal (\u03b5) that is dependent on a phase difference between, on the one hand, a beat (fm\u2212fe) between the master frequency and the slave frequency, and, on the other hand, a reference signal having a reference frequency defined beforehand on the basis of a preset offset value, the slave frequency (fe) being offset with respect to the master frequency (fm) successively, over time, by a first preset offset value (\u03b4f1), a second preset offset value (\u03b4f2), and a third preset offset value (\u03b4f3), said offset values being comprised in an interval equal to half the fundamental frequency difference (\u03b4f 0 ) plus or minus a few hundred MHz.

Metadata:
- Claim Count in Document: 6.0
- Percentile: 93.0
- Lexical Diversity: 2.36905
- Patent Class: 250.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15480129', '14312009', '14690148', '12788235', '15877985']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6678516336366853
- 35 USC 102 Novelty (BERT): 0.5155909545124476
- Combined Prediction Score: 0.6526255657242617
- Mean Citation Score: 221.362102
- Max Citation Score: 289.15283
- Similarity Product: 202.5077669658762

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

Dataset: test