PATENT CLAIM ANALYSIS

Application Number: 16436573
Application Type: Utility
Filing Date: 2019-06
Publication Date: 2019-10
Patent Classification: ["385", "014000"]

Abstract:
The embodiments herein describe a single-frequency laser source (e.g., a distributed feedback (DFB) laser or distributed Bragg reflector (DBR) laser) that includes a feedback grating or mirror that extends along a waveguide. The grating may be disposed over a portion of the waveguide in an optical gain region in the laser source. Instead of the waveguide or cavity being linear, the laser includes a U-turn region so that two ends of the waveguide terminate at the same facet. That facet is coated with an anti-reflective (AR) coating.

Claim (Index 1):
A laser source, comprising:\n a facet coated with an anti-reflective (AR) coating; an intermediate region; a U-turn region, wherein the intermediate region is between the facet and the U-turn region; a waveguide extending through the facet, the intermediate region, and the U-turn region, wherein a first portion of the waveguide in the U-turn region changes direction such that the waveguide exits the U-turn region in an opposite direction than the first portion of the waveguide entered the U-turn region, wherein first and second ends of the waveguide terminate at the facet; and a grating disposed over a second portion of the waveguide in at least one of the intermediate region and the U-turn region, wherein the grating is disposed in an optical gain region that provides optical gain to a signal propagating in the waveguide.

Metadata:
- Claim Count in Document: 17.0
- Percentile: 100.0
- Lexical Diversity: 1.74138
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15953250', '10987807', '10317935', '13022614', '10852988']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8125599436177972
- 35 USC 102 Novelty (BERT): 0.5334333913744965
- Combined Prediction Score: 0.7846472883934672
- Mean Citation Score: 238.567526
- Max Citation Score: 375.37064
- Similarity Product: 367.0484017116976

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