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 20):
A method for providing optical radiation, comprising\n providing a laser diode that has a first terminal and a second terminal; selecting a modulator that emits nanosecond pulses and which can be configured to bias the laser diode below a lasing threshold of the laser diode; and the method being characterized by the following steps:\n selecting a pulse generator that comprises a semiconductor junction connected to a differentiator; wherein the semiconductor junction is such that electric current flowing through the semiconductor junction can be turned off more quickly than it can be turned on; \n the pulse generator is connected to the first terminal; \n the modulator is connected to the second terminal; \n using the modulator to bias the laser diode below a lasing threshold of the laser diode; \n causing the semiconductor junction to emit a step change in output voltage as the electric current is turned off; \n using the differentiator to differentiate the step change in output voltage to create an electrical pulse; and \n using the electrical pulse to gain switch the laser diode such that it emits an optical pulse having an optical pulse width less than 1 ns.

Metadata:
- Claim Count in Document: 41.0
- Percentile: 93.0
- Lexical Diversity: 3.12644
- Patent Class: 372.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['13903857', '12268203', '15161067', '10683086', '12354373']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7804741560309787
- 35 USC 102 Novelty (BERT): 0.4858271530735554
- Combined Prediction Score: 0.7510094557352365
- Mean Citation Score: 193.376496
- Max Citation Score: 204.49898
- Similarity Product: 163.4549651360619

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