Doped Glass Optical Devices for High-Power Laser Systems
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Solution Overview
Problem
Laser systems face high costs and reduced optical device lifetimes due to the exponential increase in defects and absorption of electromagnetic radiation as device size increases, leading to performance degradation over time.
Innovation Solution
Doped glass optical devices with transition metal, actinide, or lanthanide elements are used, dispersed at concentrations less than 2.0 atomic percent, which facilitate energy transmission without significant absorption of the emitted radiation, extending the useful lifetime of optical devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If the size of optical devices is increased to manipulate high-powered laser beams, then the ability to handle higher power is improved, but the probability of defects and absorption increases exponentially
Solution Approach 1:
The patent changes the chemical composition parameters of the glass material by incorporating specific dopants (transition metal elements, actinide elements, or lanthanide elements) at controlled concentrations (less than 2.0 atomic percent). This compositional modification alters the optical properties of the glass, enabling it to transmit laser radiation more efficiently and reduce absorption, thereby maintaining reliability in high-power applications.
Solution Approach 2:
The patent creates a composite glass material by combining a base glass composition with dopant elements. This composite structure leverages the properties of both the base glass (providing mechanical strength and optical clarity) and the dopant elements (providing enhanced energy transmission and reduced absorption), resulting in an optical device that can handle high laser power without the exponential increase in defects that plagues conventional single-material optics.
2Use of energy by moving object
If the concentration of dopant is increased to improve energy transmission, then the facilitation of energy transmission is improved, but the absorption of electromagnetic radiation may increase
Solution Approach 1:
The patent optimizes the dopant concentration parameter to be less than 2.0 atomic percent. This precise parameter control ensures that the dopant provides sufficient energy transmission facilitation without reaching concentration levels that would cause significant absorption of the laser wavelength. The optimal concentration range balances energy transmission enhancement with minimal absorption loss.
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 doped glass optical devices effectively manage energy input from laser beams, reducing absorption and extending the operational lifespan of optical devices, particularly in high-powered systems, by facilitating the release of energy that might otherwise cause defects.
Implementation Method 1
The doped glass does not significantly absorb a selected wavelength of laser electromagnetic radiation to be manipulated by the optical device and facilitates the transmission of energy out from the glass material
Data Source
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AI summary
Optical devices include a doped glass material in which the dopant facilitates the transmission of energy out from the glass material. The doped glass may not significantly absorb a selected wavelength of laser radiation to be manipulated by the optical devices. The dopant may comprise one or more of a transition metal element, an actinide element, and a lanthanide element. Laser systems include at least one such optical device and a laser device configured to emit a beam to be manipulated by the optical device. Methods for forming optical devices and laser systems including such optical devices include dispersing a dopant within a glass material to form, and forming the glass material into a body having a size and shape configured to manipulate a beam of radiation emitted by a laser device. The dopant is selected to comprise a material that facilitates the transmission of energy out from the glass material.