Key Features:
- High-efficiency wavelength conversion
- Broad transmission range (0.4 – 4.5 µm)
- Long operational lifetime
- Suitable for various applications including SHG, OPO, OPG, DFG, and SFG
- Requires temperature control for optimal performance
- Versatile QPM structure options (single-period, multi-period, fan-shaped, chirped)
Description: Periodically Poled Lithium Niobate (PPLN) is a highly efficient nonlinear crystal for wavelength conversion. With a broad transmission range from 0.4 to 4.5 µm and a long lifespan, PPLN is ideal for applications such as optical parametric oscillation (OPO), optical parametric generation (OPG), difference frequency generation (DFG), sum frequency generation (SFG), and second harmonic generation (SHG). Its versatility in different wavelength interactions and periodic poling structures makes PPLN a crucial component in advanced optical systems.
Physical Properties:
| Parameter | Value |
|---|---|
| Crystal Structure | Periodically Poled Lithium Niobate |
| Transmission Range | 0.4 – 4.5 µm |
| Melting Point | ~1250°C |
| Density | 4.64 g/cm³ |
Optical Properties:
| Parameter | Value |
|---|---|
| Refractive Index (n @ 1 µm) | n = 2.2 |
| Transparency Range | 0.4 – 5.5 µm |
| Nonlinear Coefficient (d33) | ~27 pm/V |
Standard Specifications:
| Parameter | Value |
|---|---|
| QPM Structure | Single-period, Multi-period, Fan-shaped, Chirped |
| Period | 4.0 – 200 µm |
| Temperature Tuning Range | 25°C – 200°C |
| Dimensions | Standard or Custom |
| Duty Cycle | 48% – 52% or Custom |
| Flatness | λ/6 @ 632.8 nm |
| Parallelism | < 10″ |
| Perpendicularity | < 10′ |
| Surface Quality | 10 – 5 |
| Coating | AR/HR |
Applications:
- Second Harmonic Generation (SHG): Efficient frequency doubling of infrared laser light to visible and near-infrared wavelengths.
- Optical Parametric Oscillation/Generation (OPO/OPG): Wide tunable mid-infrared output when pumped at 1064 nm.
- Difference Frequency Generation (DFG): Interaction of 1064 nm and tunable 775 nm pump sources to achieve tunable output in the 2400 – 3000 nm range.
- Sum Frequency Generation (SFG): Interaction of 1550 nm and tunable 780 nm or 810 nm pump sources to produce tunable green light.
Processing and Handling: PPLN crystals should be handled with care to prevent contamination and damage. They require precise temperature control during use to ensure optimal performance. Cleaning should be done using appropriate solvents and non-abrasive materials. Custom dimensions and coatings can be provided to meet specific application needs.
Why Choose Shape Optics: Shape Optics provides PPLN crystals with superior quality and performance. Our expertise in manufacturing and quality control ensures reliable and efficient products for all your optical needs. We offer a range of customizable options to fit your specific requirements, supported by excellent customer service and technical support.
Shape Optics Strength and Capabilities:
- Advanced Manufacturing Techniques: Utilizing the latest technology for precise periodic poling and high-quality crystal growth.
- Customization: Tailored solutions to meet unique customer specifications and application needs.
- Global Reach: Serving clients worldwide with reliable delivery and support.
- Expert Team: A dedicated team of experts in nonlinear optics and crystal fabrication.
- Quality Assurance: Rigorous testing and quality control to ensure product reliability and performance.
Choose Shape Optics for your PPLN crystal needs and experience the pinnacle of optical innovation and reliability. Our commitment to excellence ensures that you receive the best products and services in the industry.