Laser Device Optical Path Segmentation for Power and Detection
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Solution Overview
Problem
Conventional laser devices face challenges in increasing light output power while maintaining the ability to detect laser light characteristics, such as wavelength, due to increased reflectivity of the second reflecting unit, which results in decreased power of rearward output light and difficulties in detection.
Innovation Solution
A laser device configuration that includes a first reflecting unit, a second reflecting unit, a gain unit, and a divider to split laser light into two outputs, allowing for separate amplification and output of laser light, thereby enabling more reliable detection of wavelength characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If reflectivity of the second reflecting unit is increased to increase light output power, then power of output light is improved, but power of rearward output light is decreased making detection difficult
Solution Approach 1:
The patent divides the optical path into two separate output paths: a first end portion for outputting amplified laser light and a second end portion for outputting rearward transmitted light. This segmentation allows the system to simultaneously achieve high output power through amplification while maintaining sufficient rearward light power for detection, resolving the contradiction between output power and measurement precision.
2Productivity
If reflectivity of the second reflecting unit is increased to increase light output power, then productivity is improved, but detection of wavelength characteristics becomes difficult
Solution Approach 1:
The patent introduces a beam splitter as an intermediary component that divides the laser light into two paths. This allows the system to achieve high productivity through amplified output while the beam splitter ensures sufficient light reaches the detection path for wavelength measurement, resolving the contradiction between productivity and measurement difficulty.
3Power
If output power is increased through amplification, then power of output light is improved, but stray light interference increases affecting detection accuracy
Solution Approach 1:
The patent segments the optical system into distinct paths: one for amplified output and another for detection. By physically separating these functions and positioning the second end portion away from the amplifier, the system achieves high output power while minimizing stray light interference in the detection path, thus resolving the contradiction between power and harmful factors.
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
This configuration allows for improved detection accuracy and reliability of laser light characteristics by minimizing stray light interference and optimizing output power, facilitating more precise examination results.
Implementation Method 1
a gain unit provided between the first reflecting unit and the second reflecting unit
Implementation Method 2
a first reflecting unit, a second reflecting unit, and a gain unit between the first reflecting unit and the second reflecting unit
Data Source
AI summary
A laser device includes: a first reflecting unit; a second reflecting unit; a gain unit provided between the first reflecting unit and the second reflecting unit; a divider provided after the first reflecting unit and configured to divide laser light from the first reflecting unit into first light and second light; a first end portion positioned separately from the divider in a first direction, and positioned after the divider, the first end portion being configured to output, as output light, the first light or the first light that has been amplified; and a second end portion positioned separately from the divider in a second direction different from the first direction, the second end portion being configured to output the second light.