PATENT CLAIM ANALYSIS

Application Number: 15946807
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-10
Patent Classification: ["385", "024000"]

Abstract:
A photonic integrated circuit (PIC) includes a semiconductor substrate with a main bus waveguide disposed within the substrate. Two or more ring lasers are disposed within the substrate and are optically coupled to the main bus waveguide. The ring lasers have a wavelength control mechanism allowing change of a lasers emitted wavelength. A wavelength selective filter is optically coupled to the bus waveguide. A control circuit is electronically coupled to each wavelength control mechanism, and the wavelength selective filter. The control circuit in conjunction with the selective filter allows monitoring of a ring laser's wavelength on the main bus waveguide. Based on a determined wavelength, the control circuit may change a ring laser wavelength to a desired wavelength to achieve a desired wavelength spacing for each of the ring lasers. The PIC may be integrated as a coarse wave-length division multiplexing (CWDM) transmit module.

Claim (Index 9):
A photonic integrated circuit comprising:\n a semiconductor substrate, comprising a first surface and a second surface; an optical bus waveguide disposed through the semiconductor substrate; at least four ring laser cavities disposed within the semiconductor substrate, the ring cavities optically coupled to the optical bus waveguide, each ring laser cavity comprising a portion of a respective laser and having a local wavelength control mechanism; a wavelength selective filter optically coupled to the bus waveguide, the filter having a first photodetector; and a control circuit electronically coupled to each wavelength control mechanism, and the first photodetector, wherein, in operation, the control circuit is configured to:\n determine whether a respective laser's wavelength aligns with a channel spacing grid; and \n control the wavelength control mechanisms to adjust the wavelength of the first ring laser, and the second ring laser, to align the wavelengths to the channel spacing grid.

Metadata:
- Claim Count in Document: 44.0
- Percentile: 91.0
- Lexical Diversity: 2.37313
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15855328', '14625971', '12820833', '11272604', '15047090']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8159484753648693
- 35 USC 102 Novelty (BERT): 0.4849937463528416
- Combined Prediction Score: 0.7828530024636665
- Mean Citation Score: 210.537224
- Max Citation Score: 216.41762000000003
- Similarity Product: 162.2335348171413

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