PATENT CLAIM ANALYSIS

Application Number: 15890616
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-06
Patent Classification: ["398", "208000"]

Abstract:
A silicon photonics based temperature-insensitive delay line interferometer (DLI). The DLI includes a first arm comprising a first length of a first material characterized by a first group index corresponding to a first phase delay to transfer a first light wave with a first peak frequency and a second arm comprising a second length of a second material characterized by a second group index corresponding to a second phase to transfer a second light wave with a second peak frequency with a time-delay difference relative to the first light wave. The first phase delay and the second phase delay are configured to change equally upon a change of temperature. The time-delay difference between the first light wave and the second light wave is set to be inversed value of a free spectral range (FSR) to align at least the first peak frequency to a channel of a designated frequency grid.

Claim (Index 18):
A method for forming an optical device, the method comprising a method of forming a temperature insensitive delay line interferometer, the method comprising:\n forming a first waveguide arm comprising a first length of a first material and a second length of a second material characterized by a second group index corresponding to a second phase delay; forming a second waveguide arm comprising the first length of the first material and a third length of a third material characterized by a third group index corresponding to a third phase delay, the third phase delay and the second phase delay being set to change a same amount upon temperature change; transferring a first light wave received from an input coupler through the first waveguide arm with a first peak frequency at a first temperature; transferring a second light wave received from the same input coupler through the second waveguide arm with a second peak frequency having a time-delay difference relative to the first light wave at the first temperature; setting the time-delay difference to be equal to an inversed value of free spectral range (FSR) associated with a designated frequency grid; disposing a heater on the first length of the first material to set a second temperature locally above the first temperature to induce a frequency shift to align at least the first peak frequency to one of channel frequencies of the designated frequency grid.

Metadata:
- Claim Count in Document: 50.0
- Percentile: 88.0
- Lexical Diversity: 2.54839
- Patent Class: 398.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: False
- Related Applications: ['15148710', '15088862', '15453618', '14569471', '15374967']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6433074334349114
- 35 USC 102 Novelty (BERT): 0.5970660234901077
- Combined Prediction Score: 0.6386832924404311
- Mean Citation Score: 296.916586
- Max Citation Score: 462.70654
- Similarity Product: 434.21808966045256

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