Ultrafast Laser System Nanosecond Pulse Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current ultrafast laser generating mechanisms, such as active mode-locked, passive mode-locked, and gain switched systems, face limitations in generating high-power pulses with precise timing resolution and material processing capabilities.
Innovation Solution
An ultrafast laser generating system comprising a laser signal generator, a laser signal amplifier, and a beam steering device that generates a first nanosecond laser pulse, amplifies it to produce a second nanosecond laser pulse including a picosecond laser pulse, and splits the picosecond pulse, with the laser signal generator producing output power in less than one nanosecond.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If active mode-locked, passive mode-locked or gain switched mechanisms are used, then ultrafast laser generation is achieved, but the power and timing resolution are limited
Solution Approach 1:
The patent segments the laser generation process into distinct stages: a nanosecond laser pulse generator produces an initial pulse, which is then amplified by a separate amplifier system to generate high-power picosecond pulses. This segmentation allows optimization of each stage for its specific function, achieving both high power and precise timing control independently
Solution Approach 2:
The patent introduces an intermediary nanosecond laser pulse as a trigger signal that mediates between the control system and the final picosecond pulse generation. This intermediary pulse serves as a precise timing reference that enables accurate timing resolution while the main amplifier system handles the power generation
2Ease of operation
If longer pulse duration is used, then easier generation is achieved, but timing resolution and material processing precision deteriorate
Solution Approach 1:
The patent performs preliminary action by generating a nanosecond laser pulse with precise timing characteristics before the main amplification process. This pre-prepared pulse serves as a accurately timed seed that guides the subsequent high-power pulse generation, ensuring both ease of operation and precise timing resolution
3Manufacturing precision
If rapid rise and fall times are achieved, then material processing precision is improved, but system complexity increases
Solution Approach 1:
The patent divides the laser system into separate functional modules: a nanosecond pulse generator, an amplifier system, and a beam steering device. Each module is optimized for its specific function, allowing rapid rise and fall times to be achieved in the amplifier stage without complicating the entire system, as each segment handles a specific aspect of the process
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves efficient generation of high-power picosecond laser pulses with rapid rise and fall times, enhancing applications in optical data processing, data transmission, and material processing by overcoming limitations of existing mechanisms.
Implementation Method 1
The laser signal amplifier is configured to amplify the first nanosecond laser pulse to generate a second nanosecond laser pulse
Data Source
AI summary
An ultrafast laser generating system comprises a laser signal generator, a laser signal amplifier and a beam splitting element. The laser signal generator is configured to generate a first nanosecond pulse laser. The laser amplifier is configured to amplify the first nanosecond pulse laser from the laser signal generator so as to generate a second nanosecond pulse laser, which includes a picosecond pulse laser. The beam splitting element is configured to receive the second nanosecond pulse laser and split the picosecond pulse laser from the second nanosecond pulse laser.