PATENT CLAIM ANALYSIS

Application Number: 15775536
Application Type: Utility
Filing Date: 2018-05
Publication Date: 2018-12
Patent Classification: ["372", "038020"]

Abstract:
Apparatus for providing optical radiation ( 1 ), which apparatus comprises a laser diode ( 2 ), a pulse generator ( 9 ), and a modulator ( 5 ), wherein: the pulse generator ( 9 ) is configured to emit picosecond pulses; the modulator ( 5 ) is configured to emit nanosecond pulses; the laser diode ( 2 ) has a first terminal ( 6 ) and a second terminal ( 7 ); the pulse generator ( 9 ) is connected to the first terminal ( 6 ); and the modulator ( 5 ) is configured to bias the laser diode ( 2 ) below a lasing threshold ( 8 ) of the laser diode ( 2 ), and the apparatus being characterized in that: the modulator ( 5 ) is connected to the second terminal ( 7 ); the pulse generator ( 9 ) comprises a semiconductor junction ( 32 ) connected to a differentiator ( 4 ); the semiconductor junction ( 32 ) is such that electric current flowing through the semiconductor junction ( 32 ) can be turned off more quickly than it can be turned on; and the differentiator ( 4 ) is such that a step change that occurs when the electric current flowing through the semiconductor junction ( 32 ) is turned off is converted to an electrical pulse, thereby gain switching the laser diode ( 2 ) such that it emits an optical pulse ( 10 ) having an optical pulse width ( 11 ) less than 10 ns.

Claim (Index 8):
Apparatus according to  claim 1  wherein the differentiator comprises an electrical waveguide defined by a first length and a first characteristic impedance, the semiconductor junction is connected to a first end of the electrical waveguide, and a second end of the electrical waveguide is defined by an impedance that is less than the first characteristic impedance, thereby causing a step voltage signal defined by a polarity propagating along from the first end of the electrical waveguide to the second end of the electrical waveguide to be reflected back to the first end of the electrical waveguide with the opposite polarity.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 93.0
- Lexical Diversity: 3.12644
- Patent Class: 372.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['13903857', '12268203', '15161067', '10683086', '12354373']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7985577514769064
- 35 USC 102 Novelty (BERT): 0.4981707786757317
- Combined Prediction Score: 0.768519054196789
- Mean Citation Score: 193.376496
- Max Citation Score: 204.49898
- Similarity Product: 147.6541027187359

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