PATENT CLAIM ANALYSIS

Application Number: 15874779
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-07
Patent Classification: ["385", "010000"]

Abstract:
An on-chip optical phased array includes an array of photonic antenna units connected in series by photonic waveguides and arranged in a two-dimensional array to produce complex still and scanning optical patterns through optical interference effect. Each antenna unit includes an output photonic antenna (e.g. grating antenna), and a waveguide phase shifter for adjusting the optical phase of the optical beam output by the antenna unit. The grating antenna and the waveguide phase shifter are formed in the same optical wave guiding layer which includes a core layer between two cladding layers. The grating antennas may be a shallow-etched structure or a deep-etched edge-modulated grating. The optical phased array, including the array of photonic antenna units and the electrodes that connect and provide electrical power to them, can be made on a single chip of silicon using complementary metal-oxide-semiconductor (CMOS) or compatible fabrication processes.

Claim (Index 1):
An on-chip optical phased array for forming far field optical patterns from an input coherent light source, comprising:\n a substrate; a plurality of antenna units formed on the substrate, each antenna unit including:\n a grating antenna, formed in an optical wave guiding layer, configured to emit a pre-defined portion of an input light out of a plane of the optical wave guiding layer and to transmit remaining input light which passes through the grating antenna; \n a waveguide phase shifter, formed in the optical wave guiding layer, configured to adjust an optical phase and a field strength of the antenna unit by an applied electrical power; and \n an optical waveguide, formed in the optical wave guiding layer, which connects the grating antenna and the waveguide phase shifter via direct butt coupling; and \n a plurality of additional optical waveguides including a plurality of optical waveguide bends, formed in the optical wave guiding layer, which serially connect the plurality of antenna units in a serpentine shape, wherein the remaining input light which passes through one grating antenna is transmitted to another antenna unit by one of the additional optical waveguides, wherein the plurality of grating antennas are arranged in a two-dimensional array with equal or unequal distances between them; and wherein the emitted light from the plurality of grating antennas forms a far field optical pattern based on optical interference.

Metadata:
- Claim Count in Document: 15.0
- Percentile: 86.0
- Lexical Diversity: 1.8046
- Patent Class: 385.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['14149099', '15279295', '15543903', '14289375', '15447297']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.820214373578683
- 35 USC 102 Novelty (BERT): 0.4986352496918286
- Combined Prediction Score: 0.7880564611899976
- Mean Citation Score: 264.353548
- Max Citation Score: 285.48816
- Similarity Product: 240.67990930538173

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