PATENT CLAIM ANALYSIS

Application Number: 15922123
Application Type: Utility
Filing Date: 2018-03
Publication Date: 2018-08
Patent Classification: ["385", "001000"]

Abstract:
Embodiments of the invention describe systems, apparatuses and methods for providing athermicity and a tunable spectral response for optical filters. Finite impulse response (FIR) filters are commonly implemented in photonic integrated circuits (PICs) to make devices such as wavelength division multiplexing (WDM) devices, asymmetric Mach-Zehnder interferometers (AMZIs) and array waveguide gratings (AWGs). Athermicity of an FIR filter describes maintaining a consistent frequency transmission spectrum as the ambient temperature changes. A tunable spectral response for an FIR filter describes changing the spectrum of an FIR filter based on its application, as well as potentially correcting for fabrication deviations from the design. In addition, embodiments of the invention reduce energy dissipation requirements and control complexity compared to prior art solutions.

Claim (Index 10):
The tunable optical filter of  claim 2 , wherein:\n the first waveguide section has a first length and a first temperature coefficient of refractive index; the second waveguide section has a second length and a second temperature coefficient of refractive index greater than the first temperature coefficient of refractive index; the second waveguide includes a third waveguide section and a fourth waveguide section; the third waveguide section has a third length and a third temperature coefficient of refractive index; the fourth waveguide section has a fourth length and a fourth temperature coefficient of refractive index greater than the third temperature coefficient of refractive index; and a product of the first length and the first temperature coefficient of refractive index added to a product of the second length and the second temperature coefficient of refractive index differs from a product of the third length and the third temperature coefficient of refractive index added to a product of the fourth length and the fourth temperature coefficient of refractive index.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 90.0
- Lexical Diversity: 1.55682
- Patent Class: 385.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: False
- Related Applications: ['13751492', '15612364', '14929603', '14537575', '15853422']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8184141964407737
- 35 USC 102 Novelty (BERT): 0.5020908788674148
- Combined Prediction Score: 0.7867818646834379
- Mean Citation Score: 246.07698800000003
- Max Citation Score: 311.4513
- Similarity Product: 247.6331011656404

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