PATENT CLAIM ANALYSIS

Application Number: 15757588
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["356", "451000"]

Abstract:
Disclosed is a system for measuring the duration, time profile and spectrum of an ultra-fast laser pulse, including a single-shot optical correlator with wavefront division, a non-linear optical crystal arranged so that a first divided wavefront and a second divided wavefront superpose in the non-linear optical crystal, an optical system forming an image of the non-linear optical crystal on a detection system, a filtering device arranged between the non-linear optical crystal and the detection system and configured to detect both a second-order single-shot interferometric autocorrelation trace at the optical double frequency as well as at least one other first-order single-shot interferometric autocorrelation trace at the fundamental optical frequency or a second-order intensimetric trace at the optical double frequency.

Claim (Index 16):
A system for measuring the duration, the temporal profile and the spectrum of an ultrashort laser pulse, wherein the measurement system includes a single-shot optical autocorrelator comprising:\n a wavefront-splitting optical component arranged so as to receive a collimated wavefront of fundamental optical frequency \u03c9 coming from an ultrashort laser pulse source and to spatially split the collimated wavefront of an ultrashort light pulse into a first split wavefront propagating along a first direction and a second split wavefront propagating along a second direction forming a non-null angle with the first direction, a non-linear optical crystal arranged at a determined distance from the wavefront-splitting optical component so that the first split wavefront and the second split wavefront are superimposed to each other in the non-linear optical crystal, an optical system forming an image of the non-linear optical crystal on a detection system spatially resolved in at least one direction, a filtering device arranged between the non-linear optical crystal and the detection system, the filtering device and the detection system being configured to detect, on the one hand, a second-order single-shot interferometric autocorrelation trace at the double optical frequency 2\u03c9 and, on the other hand, at least another single-shot autocorrelation trace of the first-order interferometric type at the fundamental optical frequency \u03c9 or of the second-order intensimetric type at the double optical frequency 2\u03c9, and in that the measurement system includes a signal processing system configured to analyse, on the one hand, the second-order single-shot interferometric autocorrelation trace at the double optical frequency 2\u03c9 and, on the other hand, the other single-shot autocorrelation trace, and to deduce therefrom a measurement of the duration, the temporal profile and the spectrum of an ultrashort laser pulse.

Metadata:
- Claim Count in Document: 2.0
- Percentile: 90.0
- Lexical Diversity: 1.96825
- Patent Class: 356.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14364668', '15549266', '12692326', '10265211', '10557809']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.583318129440873
- 35 USC 102 Novelty (BERT): 0.4770797294727718
- Combined Prediction Score: 0.572694289444063
- Mean Citation Score: 207.774904
- Max Citation Score: 222.073
- Similarity Product: 195.6159443622232

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