PATENT CLAIM ANALYSIS

Application Number: 16185875
Application Type: Utility
Filing Date: 2018-11
Publication Date: 2019-05
Patent Classification: ["372", "038050"]

Abstract:
A surface-emitting quantum cascade laser of an embodiment comprises a substrate, an active layer, and a photonic crystal layer. The active layer has optical nonlinearity, and is capable of emitting a first and a second infrared laser light. The photonic crystal layer includes a first and a second region. The rectangular grating of the first region is orthogonal to the rectangular grating of the second region. The first infrared laser light has a wavelength corresponding to a maximum gain outside a first photonic bandgap in a direction parallel to a first side of two sides constituting the rectangular grating. The second infrared laser light has a wavelength corresponding to a maximum gain outside a second photonic bandgap in a direction parallel to a second side of the two sides of the rectangular grating.

Claim (Index 1):
A surface-emitting quantum cascade laser comprising:\n a substrate; an active layer provided on the substrate, having optical nonlinearity, and being capable of emitting a first and a second infrared laser light by intersubband transition; and a photonic crystal layer placed on the active layer and including a first region provided with a rectangular grating having optical anisotropy and a second region provided with the rectangular grating, the rectangular grating of the first region being orthogonal to the rectangular grating of the second region, in the first region, the first infrared laser light having a first wavelength corresponding to a maximum gain outside a first photonic bandgap in a direction parallel to a first side of two sides constituting the rectangular grating, and the first infrared laser light lasing in the direction parallel to the first side, in the second region, the second infrared laser light having a second wavelength corresponding to a maximum gain outside a second photonic bandgap in a direction parallel to a second side of the two sides of the rectangular grating, and the second infrared laser light lasing in the direction parallel to the second side, part of the first infrared laser light flowing into the second region and being capable of existing in the second region, and the first and second infrared laser light being emitted in a direction generally perpendicular to the active layer.

Metadata:
- Claim Count in Document: 21.0
- Percentile: 98.0
- Lexical Diversity: 2.89796
- Patent Class: 372.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15693601', '14919383', '16120808', '15145951', '15251119']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8010518693396425
- 35 USC 102 Novelty (BERT): 0.4657847559644197
- Combined Prediction Score: 0.7675251580021203
- Mean Citation Score: 161.596176
- Max Citation Score: 183.05502
- Similarity Product: 155.07309039489985

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