Source: Market Research Intellect

Frequenct Tripling in Nonlinear Crystals

Overview

Frequenct tripling is a process where the optical frequency of a laser beam is tripled through nonlinear frequency conversion. This process is commonly achieved by cascading frequency doubling and sum frequency generation using nonlinear crystal materials.

Applications

The main application of frequency tripling is the generation of ultraviolet light. It is often used to produce 355-nm light by tripling a 1064 nm laser beam. This process is efficient when using Q-switched or mode-locked lasers.

Power Conversion Efficiency

Theoretical power conversion efficiency in frequency tripling can be close to 100%, but practical efficiency is usually lower due to various factors. Overall conversion efficiencies from infrared to ultraviolet light typically range from 30 to 40%.

Crystal Lifetime

Nonlinear crystals used in frequency tripling need to withstand high optical intensities, leading to gradual degradation over time. Crystal lifetime can vary based on factors such as crystal material type, quality, and operating parameters. Techniques like crystal indexing and resonant frequency conversion can enhance crystal lifetime.

Conclusion

Frequenct tripling in nonlinear crystals is a valuable technique for generating ultraviolet light with various applications. Understanding the efficiency and degradation factors of nonlinear crystals is crucial for optimizing the performance and longevity of frequency tripling setups.

Source: MDPI
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