Optical Output System for Pulse Laser Timing Control
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Solution Overview
Problem
Existing configurations for switching the timing to output two pulse lasers are cumbersome and complicated.
Innovation Solution
An optical output system that includes a first laser and a second laser, both capable of outputting pulse lasers in response to input signals, and an arithmetic unit that repeatedly inputs these signals with a variable delay value, allowing for easy switching of the timing between the two lasers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If optical path length is changed to switch emission timing, then timing control is achieved, but device complexity increases
Solution Approach 1:
The patent replaces the mechanical/optical path length adjustment system with an electronic timing control system. The arithmetic unit generates timing signals that directly control when each laser emits pulses, eliminating the need for mechanical delay lines or optical path adjustments. This substitution of mechanical control with electronic timing resolution achieves precise timing control while significantly reducing device complexity.
2Speed
If a pulse picker is used to control emission timing, then timing control is achieved, but device complexity increases
Solution Approach 1:
The patent extracts the timing control function from the laser system itself and places it in a separate arithmetic unit. Instead of using a pulse picker that modifies the laser output, the system generates timing signals that control the laser emission directly. This separation allows precise timing control to be achieved through software/algorithms in the arithmetic unit without adding complex optical modulation components.
3Measurement precision
If complex configurations are used to switch timing, then timing precision is improved, but ease of operation deteriorates
Solution Approach 1:
The arithmetic unit automatically generates and adjusts timing signals for the lasers without requiring manual intervention. The system can programmatically vary the delay values and switching patterns, enabling precise timing control through software algorithms rather than manual mechanical adjustments. This automation maintains high timing precision while significantly improving ease of operation through programmable control.
Data Source
AI summary
An optical output system includes: a first laser that outputs first light which is a pulse laser in response to input of a first signal; a second laser that outputs second light which is a pulse laser in response to input of a second signal; and an arithmetic unit that inputs the first signal and the second signal to the first laser and the second laser, wherein the arithmetic unit repeatedly inputs the first signal and the second signal with switching a variable delay value, which is a difference between a timing to input the first signal to the first laser and a timing to input the second signal to the second laser, in a plurality of ways.