PATENT CLAIM ANALYSIS

Application Number: 15882122
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2018-06
Patent Classification: ["385", "014000"]

Abstract:
Embodiments describe high-efficiency optical waveguide transitions—i.e., creating heterogeneous transitions between Si and III-V semiconductor regions or devices with minimal reflections. This is advantageous for III-V device performance, e.g. for an on-chip lasers achieving lower relative intensity noise (RIN) and lower phase noise by avoiding reflections, higher gain and reduced gain-ripple from an semiconductor optical amplifier (SOA) by avoiding internal reflections in the SOA. Furthermore, in some embodiments, generated photocurrent can be used as a monitor signal for control purposes, thereby avoiding the use of separate tap-monitor photodetectors, which provide additional link loss.

Claim (Index 18):
A waveguide coupling apparatus, comprising:\n a first waveguide including silicon semiconductor material, the first waveguide including a tapered coupling region that extends to a termination region; a second waveguide including silicon nitride dielectric material, the second waveguide positioned parallel to and directly adjacent to the first waveguide in the coupling region of the first waveguide, the tapered coupling region of the first waveguide being configured to couple light from the first waveguide to the second waveguide, the termination region of the first waveguide positioned away from the second waveguide and operatively minimizing reflections at transitions between the silicon semiconductor material and the silicon nitride dielectric material of the first and second waveguides; and a structure coupled to the termination region of the first waveguide and configured to reduce back-reflections of light from the termination region toward the tapered coupling region.

Metadata:
- Claim Count in Document: 9.0
- Percentile: 86.0
- Lexical Diversity: 1.37179
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14537609', '14159886', '09991371', '13966194', '14938815']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7933978341448329
- 35 USC 102 Novelty (BERT): 0.4583789753214315
- Combined Prediction Score: 0.7598959482624928
- Mean Citation Score: 140.281912
- Max Citation Score: 180.8894
- Similarity Product: 154.85608787181374

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