PATENT CLAIM ANALYSIS

Application Number: 15907647
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2019-08
Patent Classification: ["385", "030000"]

Abstract:
The evanescent optical coupler is constituted by an IOX waveguide and an optical fiber. The IOX waveguide is formed in a glass substrate and has a tapered section that runs in an axial direction. The IOX waveguide supports a waveguide fundamental mode having an waveguide effective index N W0  that varies within a range ΔN W0  as a function of the axial direction. The IOX waveguide can also support a few higher-order modes. The optical fiber supports a fiber fundamental mode having a fiber effective index N F0  that falls within the waveguide effective index range ΔN W0  of the waveguide fundamental mode of the tapered section of the IOX waveguide. A portion of the optical fiber is interfaced with the tapered section of the IOX waveguide to define a coupling region over which evanescent optical coupling occurs between the optical fiber and the IOX waveguide.

Claim (Index 26):
A method of performing evanescent optical coupling of an optical signal at an operating wavelength, comprising:\n interfacing an ion-exchanged (IOX) waveguide with an optical fiber to define a coupling region over which evanescent optical coupling occurs between the optical fiber and the IOX waveguide, wherein the IOX waveguide comprises a tapered section at the coupling region that supports a waveguide fundamental mode having a waveguide effective index N W0  that varies within a waveguide effective index range \u0394N W0  within the tapered section, and wherein the optical fiber supports a fiber fundamental mode having a fiber effective index N F0  that falls within the waveguide effective index range \u0394N W0  at an axial position within the tapered section and transmitting the optical signal in one of the fiber fundamental mode and the waveguide fundamental mode to cause the evanescent optical coupling of the optical signal into the other of the waveguide fundamental mode and the fiber fundamental mode in the coupling region and at the axial position where the fiber effective index N F  equals the waveguide fundamental mode effective index N W0 .

Metadata:
- Claim Count in Document: 48.0
- Percentile: 88.0
- Lexical Diversity: 2.4918
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14023824', '10599057', '12789931', '13493264', '15409962']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8564880992386668
- 35 USC 102 Novelty (BERT): 0.5151480564134749
- Combined Prediction Score: 0.8223540949561475
- Mean Citation Score: 318.88479199999995
- Max Citation Score: 321.40955
- Similarity Product: 237.41074271632127

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