PATENT CLAIM ANALYSIS

Application Number: 15953473
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2018-08
Patent Classification: ["398", "016000"]

Abstract:
Using pump-probe measurements on multi-span optical links may result in the determination of one or more of the following: 1) wavelength-dependent power profile and gain evolution along the optical link; 2) wavelength-dependent dispersion map; and 3) location of regions of high polarization-dependent loss (PDL) and polarization-mode dispersion (PMD). Such measurements may be a useful diagnostic for maintenance and upgrade activities on deployed cables as well as for commissioning new cables.

Claim (Index 1):
A method for measuring physical properties of optical signals as a function of wavelength and as a function of location in an optical link, the method comprising:\n generating a first modulated optical carrier at a first wavelength, the first modulated optical carrier carrying pump pulses; generating a second modulated optical carrier at a second wavelength that differs from the first wavelength, the second modulated optical carrier carrying pilot pulses and carrying probe pulses; transmitting the first modulated optical carrier and the second modulated optical carrier on an optical fiber over the optical link, the optical link comprising multiple spans connected by one or more optical amplifiers, such that a probe pulse of the probe pulses is spatially overlapped in the optical fiber with a pump pulse of the pump pulses within at least one interaction region in the optical link; performing a measurement on the probe pulse beyond an end of the optical fiber to measure optical properties of the probe pulse relative to a coherent reference, wherein the coherent reference includes a component of at least one of the pilot pulses, the component being coherent to the probe pulse; and calculating physical properties of the pump pulse from the measurement on the probe pulse, wherein the pilot pulses are arranged to be not spatially overlapped in the optical fiber with any of the pump pulses, or the pilot pulses are arranged so that any interaction between the pilot pulses and any of the pump pulses introduces a negligible error or a deterministic-yet-correctable error in measurement of the optical properties.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 91.0
- Lexical Diversity: 1.41379
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15135272', '14346955', '11580473', '12029626', '13767851']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6080861403711528
- 35 USC 102 Novelty (BERT): 0.6206622666512426
- Combined Prediction Score: 0.6093437529991619
- Mean Citation Score: 264.51573
- Max Citation Score: 504.20062
- Similarity Product: 497.2010459106994

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

Dataset: test