PATENT CLAIM ANALYSIS

Application Number: 16229083
Application Type: Utility
Filing Date: 2018-12
Publication Date: 2019-06
Patent Classification: ["385", "014000"]

Abstract:
An optical circuit that monolithically integrates a splitter, two optical 90° hybrids, and first to fourth waveguides on a unique substrate is disclosed. The splitter splits a local beam into first and second local beams each provided to the hybrids through the third and fourth waveguides, while, the signal beam including first and second signal beams each provided to the hybrids through the first and second waveguides without intersecting with the third and fourth waveguides. The hybrids extract in-phase components and quadrature phase components of the first and second signal beams with respect to the first and second local beams, respectively. The phase statuses of the quadrature components against the in-phase components are same in the two hybrids.

Claim (Index 3):
The optical circuit according to  claim 1 ,\n wherein the first optical 90\u00b0 hybrid and the second optical 90\u00b0 hybrid each includes a 2\u00d74 multi-mode interference (MMI) element, a 2\u00d72 MMI element, and a phase shifter, wherein the 2\u00d74 MINE element includes a signal input port and a local input port, and first to fourth output ports, the first output port causing phase shifts of 135\u00b0 and \u221245\u00b0 for beams inputting to the signal input port and the local input port, respectively, the second and third output ports each causing phase shifts of 0\u00b0 and 0\u00b0 for beams inputting to the signal input port and the local input port, respectively, and the fourth output port causing phase shifts of \u221245\u00b0 and 135\u00b0 for beams inputting to the signal input port and the local input port respectively, where angles of 135\u00b0, 0\u00b0, and \u221245\u00b0 correspond to the wavelength \u03bb and include equivalent angles thereof, and wherein the 2\u00d72 MMI element includes first and second input ports and first and second output ports, the first output port causing phase shifts of 0\u00b0 and \u221290\u00b0 for the first input port and the second input, respectively, the second output port causing phase shifts of \u221290\u00b0 and 0\u00b0 for the first input port and the second input port, respectively, where angles of 0\u00b0, and \u221290\u00b0 correspond to the wavelength \u03bb and include equivalent angles thereof.

Metadata:
- Claim Count in Document: 3.0
- Percentile: 98.0
- Lexical Diversity: 2.35185
- Patent Class: 385.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13377774', '13379702', '13202088', '15779135', '13378034']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8339907033773968
- 35 USC 102 Novelty (BERT): 0.4925680718110499
- Combined Prediction Score: 0.7998484402207622
- Mean Citation Score: 231.965014
- Max Citation Score: 238.08318
- Similarity Product: 179.05604256408333

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