PATENT CLAIM ANALYSIS

Application Number: 16077781
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["385", "012000"]

Abstract:
Provided is an optical waveguide with an inscribed Bragg grating, where the Bragg grating is stable at high temperature, has low scattering loss and high reflectivity. Also provided is a method for inscribing a Bragg grating in an optical waveguide, the method comprising irradiating the optical waveguide with electromagnetic radiation from an ultrashort pulse duration laser of sufficient intensity to cause a permanent change in an index of refraction within a core of the optical waveguide, where the irradiating step is terminated prior to erasure of a Bragg resonance, and heating the optical waveguide to a temperature and for a duration sufficient to substantially remove a non-permanent grating formed in the optical waveguide by the irradiating step.

Claim (Index 1):
A method for inscribing a Bragg grating in an optical waveguide, comprising the steps of:\n providing the optical waveguide; providing electromagnetic radiation from an ultrashort pulse duration laser, wherein the electromagnetic radiation has a pulse duration of less than or equal to 5 picoseconds, and wherein the wavelength of the electromagnetic radiation has a characteristic wavelength in the wavelength range from 150 nm to 2.0 microns; irradiating the optical waveguide with the electromagnetic radiation to form a Bragg grating, the electromagnetic radiation incident on the optical waveguide being sufficiently intense to cause a permanent change in an index of refraction within a core of the optical waveguide when exposed to a succession of laser pulses, wherein the irradiating step is carried out for at least a number of pulses sufficient to form the permanent index of refraction change in the core of the optical waveguide, and wherein the irradiating step is terminated prior to erasure of a Bragg resonance by the irradiating; and heating the optical waveguide to a temperature and for a duration sufficient to substantially remove a non-permanent grating formed in the optical waveguide by the irradiating step.

Metadata:
- Claim Count in Document: 23.0
- Percentile: 96.0
- Lexical Diversity: 2.03279
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['13592845', '12486796', '12169920', '11243193', '15693556']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8160797621114458
- 35 USC 102 Novelty (BERT): 0.5348335746427154
- Combined Prediction Score: 0.7879551433645728
- Mean Citation Score: 329.356632
- Max Citation Score: 364.70523
- Similarity Product: 288.1209654358452

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

Dataset: test