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 15):
An evanescent optical coupler, comprising:\n a glass substrate having a top surface; an ion-exchanged (IOX) region formed in the glass substrate, wherein the IOX region and an immediately adjacent surrounding portion of the glass substrate define an IOX waveguide comprising a tapered section that runs in an axial direction and that supports optical transmission of a waveguide fundamental mode and up to six waveguide higher-order modes at an operating wavelength, wherein the waveguide fundamental mode has an effective index N W0  that varies within an effective index range \u0394N W0  as a function of the axial direction within the tapered section; a single mode optical fiber that supports a fundamental mode with a fiber effective index N F0  at the operating wavelength, the optical fiber comprising a glass core with a core refractive index, a glass inner cladding with a cladding refractive index disposed about the glass core and comprises a flat surface, and wherein the glass core and the glass inner cladding are updoped so that the fiber effective index N F0  falls within the effective index range \u0394N W0  of the mode effective index N W0  of the waveguide fundamental mode of the tapered section of the IOX waveguide; and wherein a portion of the flat surface of the glass inner cladding is interfaced with the tapered section of the IOX waveguide to establish evanescent optical coupling between the optical fiber and the IOX waveguide.

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): 0.8564713930701987
- 35 USC 102 Novelty (BERT): 0.5156057673639931
- Combined Prediction Score: 0.8223848304995782
- Mean Citation Score: 318.88479199999995
- Max Citation Score: 321.40955
- Similarity Product: 233.657117551142

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