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Optical Crystals Library

A Comprehensive Guide to High-Performance Optical Crystals Library

Optical crystals play a critical role in modern photonics, enabling advanced optical systems for various industries. These precision-engineered materials are tailored for high-performance applications in laser systems, imaging, telecommunications, and scientific research.

Overview of Optical Crystals

At Photonics on Crystals (POC), we take pride in providing a comprehensive library of optical crystals, offering customers an in-depth understanding of their properties, applications, and suitability for different use cases. This page serves as a cornerstone for customers exploring optical crystal solutions, providing expert insights and guidance for selection.

From nonlinear and laser crystals to specialized optical components, our extensive portfolio demonstrates our expertise in precision fabrication, high-quality material sourcing, and innovative engineering. With detailed descriptions and technical specifications, this library empowers you to identify and select the right optical crystal tailored to your unique application needs. POC’s advanced manufacturing capabilities and consultancy services ensure that every optical solution is optimized for performance, reliability, and efficiency.

Below, we provide a detailed overview of our key optical crystals.

Here is a comparison table for the optical crystals:

CrystalTransmission Range (µm)Refractive IndexKey FeaturesApplications
Cr²⁺/ZnS Crystal0.45 – 122.2Broad transparency, high damage threshold, ideal for mid-IR laser applicationsMedical diagnostics, mid-IR spectroscopy, environmental sensing
Co²⁺/ZnS Crystal1.5 – 102.2Strong absorption, passive Q-switch functionality, high thermal stabilityIndustrial and military laser systems, pulse generation
Fe²⁺/ZnS Crystal4 – 82.2Wide absorption band, saturable absorber for high-pulse lasers, mid-IR performanceAtmospheric sensing, military targeting systems, optical communications
YAg Crystal0.2 – 51.82Low thermal expansion, excellent mechanical properties, versatile optical performanceHigh-power lasers, SHG (Second Harmonic Generation), Raman scattering, industrial use
Eye-Safe Laser Crystal1.5 – 31.45 – 1.82 (material dependent)Safe for eye operation, highly efficient for medical and lidar applicationsMedical lasers, lidar, range-finding, safe laser applications
Bonding Laser CrystalsVaries (based on materials)Varies (based on materials)Combines strengths of multiple crystals, high-energy capability, optimized thermal performanceIndustrial lasers, military-grade applications, high-energy systems

This table provides an easy-to-understand comparison of the features, specs, and applications of the listed optical crystals.

Cr²⁺/ZnS Crystal

Cr²⁺-doped ZnS crystals are high-performance materials widely used in mid-infrared laser systems. These crystals exhibit excellent optical properties, including broad transparency (0.45–12 µm) and high damage thresholds, making them suitable for ultra-short pulsed lasers and high-power laser systems. With exceptional gain characteristics, Cr²⁺/ZnS crystals are ideal for applications in medical diagnostics, environmental sensing, and mid-infrared spectroscopy. POC offers precise fabrication and coating to meet specific design requirements.
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Co²⁺/ZnS Crystal

Co²⁺-doped ZnS crystals are another versatile optical material with strong absorption properties in the infrared range, typically spanning 1.5–10 µm. These crystals are primarily employed as passive Q-switches in laser systems, facilitating high-energy pulse generation. Their stability and resistance to thermal degradation make them a preferred choice for industrial and military laser applications. POC ensures stringent quality control during the manufacturing process, delivering high-purity Co²⁺/ZnS crystals for demanding environments.
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Fe²⁺/ZnS Crystal

Fe²⁺-doped ZnS crystals offer exceptional performance in mid-IR laser applications, particularly as saturable absorbers for high-energy, high-pulse lasers. With a wide absorption band in the 4–8 µm range, these crystals are pivotal in atmospheric sensing, military targeting systems, and free-space optical communications. POC’s advanced engineering ensures consistent quality and precision, enabling seamless integration into cutting-edge laser platforms.
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YAg Crystal

Yttrium Aluminum Garnet (YAg) crystals are a powerful optical material with excellent thermal and mechanical properties. Known for their broad transmission range and low thermal expansion, YAg crystals are commonly used in high-power laser systems, particularly in industrial cutting and medical equipment. Their versatility extends to applications requiring second harmonic generation (SHG) and Raman scattering. POC provides custom YAg crystal solutions, leveraging state-of-the-art manufacturing to meet diverse client specifications.
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Eye-Safe Laser Crystal

Eye-safe laser crystals are specifically engineered for applications requiring safe operation within the human eye's safety range (commonly 1.5 µm). These crystals, such as Er:YAG and Tm:YLF, are widely adopted in medical, lidar, and range-finding systems. Their exceptional efficiency and reliability ensure superior performance in applications demanding high pulse energies. POC specializes in the production of eye-safe crystals, ensuring high quality and customized coatings for optimized performance.
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Bonding Laser Crystals

Bonding laser crystals represent an advanced optical innovation, where different crystal materials are bonded together to optimize thermal and optical performance. These crystals are frequently used in high-energy laser systems, combining the strengths of various materials to achieve superior efficiency and reduced thermal effects. Bonded laser crystals are particularly beneficial in military-grade and industrial lasers, offering unmatched stability under extreme conditions. POC employs advanced bonding techniques to deliver high-quality solutions that meet the most stringent industry standards.
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Why Choose POC?

At Photonics on Crystals, we bring years of expertise in the engineering and fabrication of advanced optical crystals. Our state-of-the-art facilities and cutting-edge technology allow us to deliver tailored solutions to meet your exact requirements. Whether you are in search of high-power laser crystals or specialized optical components, POC stands as your trusted partner in photonics innovation.

With our comprehensive Optical Crystals library, we aim to guide you to the most suitable material for your application, ensuring excellence in performance and reliability. Contact us today to learn more about our optical solutions and discover how we can help drive your innovation forward.