1 Key Features of the Crystals Catalogue
- High optical quality with superior ground-state absorption for efficient Q-switching.
- Broad wavelength compatibility for diverse laser systems.
- Robust thermal and mechanical properties ensuring high durability.
- Customizable coatings and dimensions tailored to application needs.
- Exceptional performance under high laser intensities and UV exposure.
2. Material General Description
The Q-switching crystal catalogue from Photonics On Crystals (POC) includes premium materials such as RTP, DKDP, LGS, V:YAG, Co:Spinel, and Co2+:MgAl2O4 crystals. These crystals are specifically engineered for passive and active Q-switching applications, providing unmatched efficiency and reliability. Grown through advanced techniques like the Czochralski and hydrothermal methods, the crystals exhibit exceptional optical, mechanical, and thermal properties. Their versatility is further enhanced by resistance to UV radiation and high laser damage thresholds, making them indispensable for high-performance laser systems.
3. General Applications and Examples
- RTP Crystals: Ideal for electro-optic applications such as Pockels cells in laser modulators, offering low half-wave voltages and high optical damage thresholds.
- DKDP Crystals: Widely used in high-power laser systems for harmonic generation and Q-switching due to their high optical transparency and electro-optic coefficients.
- LGS Crystals: Preferred for piezoelectric devices and electro-optic modulators, combining high laser damage resistance with broad temperature stability.
- V:YAG Crystals: Passive Q-switching in Nd:YAG, Nd:YVO4, and Er:Glass lasers for applications like rangefinding, LIDAR, and medical lasers.
- Co:Spinel and Co2+:MgAl2O4 Crystals: Optimized for mid-infrared laser Q-switching, excelling in high-energy pulsed laser systems.
4. Comparison of the Crystals
| Property | RTP | DKDP | LGS | V:YAG | Co:Spinel | Co2+:MgAl2O4 |
| Crystal Structure | Orthorhombic | Tetragonal | Trigonal | Cubic | Cubic | Cubic |
| Thermal Conductivity (W/m·K) | 4.7 | 1.2 | 5.0 | 11.2 | 2.3 | 2.0 |
| Refractive Index | 1.8 @ 1064 nm | 1.54 @ 1 μm | 1.89 @ 1064 nm | 1.82 @ 1064 nm | 1.75 @ 1 μm | 1.72 @ 1 μm |
| Damage Threshold (J/cm²) | >10 | ~6 | >15 | >10 | ~8 | ~8 |
| Primary Use | EO Modulation | Harmonic Gen. | EO Modulation | Passive Q-Switch | Mid-IR Q-Switch | Mid-IR Q-Switch |
5. Standard Fabrication Specifications
| Parameter | Value |
| Surface Flatness | <λ/8 @ 632.8 nm |
| Parallelism Error | <20 arcsec |
| Protective Chamfers | <0.1 mm at 45° |
| Initial Transmission (T0) | 30-98% depending on crystal type |
| Coating Options | Anti-Reflective coatings optimized per wavelength |
6. POC Strength and Capabilities
Photonics On Crystals (POC) excels in crystal customization, processing, and coating to meet diverse laser system requirements. Leveraging advanced facilities and a skilled team, POC ensures:
- Precision manufacturing with stringent quality control.
- Flexible customization, from dimensions to coatings.
- Rapid delivery timelines and exceptional customer support.
7. Contact Information
Photonics On Crystals (POC)
Address: 71 Bukit Batok Crescent, #09-10, Prestige Centre, Singapore 658071
Email: [email protected]
Telephone: +65-90749669
Website: https://poc.com.sg