MgO:PPLN Crystals and Waveguides
High Conversion Efficiency: Achieved through the use of a quasi-phase-matching (QPM) phenomenon, utilizing the higher nonlinear coefficient (d33) compared to birefringent phase matching.
Wide Transparent Spectrum: Covers 0.4 to 5 μm.
Enhanced Damage Threshold: 5% MgO doping significantly improves the crystal’s damage threshold.
Convenient Temperature Environment: QPM allows for efficient operation without stringent temperature controls.
Absence of Spatial Walk-Off: Ensures stable and efficient non-linear interactions.
Low Possibility of Photorefractive Issues: Reduces the likelihood of adverse effects during high-power operations.
Applications: Second Harmonic Generation (SHG), Sum Frequency Generation (SFG), Difference Frequency Generation (DFG), Optical Parametric Amplification (OPA), Optical Parametric Oscillation (OPO), Optical Parametric Generation (OPG), etc.
Periodically Poled Lithium Niobate (PPLN) crystals are advanced non-linear optical crystals characterized by high conversion efficiencies and a broad transparent spectrum ranging from 0.4 to 5 μm. These crystals feature periodic domain structures created by inverting the crystal dipole moment using a high-voltage electric field. The introduction of 5% MgO doping enhances the damage threshold and broadens the phase-matching bandwidth, making MgO crystals highly efficient for a variety of non-linear optical interactions.
Specifications:
| Tolerance of Size | (Width±0.1mm) x (Thickness±0.05mm)x(Length±0.1mm) |
| Flatness | < Lambda/8 @ 633nm |
| Wavefront Distortion | < Lambda/6 @ 633nm |
| Chips | <0.1mm |
| Surface Quality | 20/10 S/D |
| Parallelism | <10 |
| Perpendicularity | <10’ |
Features:
- High Conversion Efficiency: Achieved through the use of a quasi-phase-matching (QPM) phenomenon, utilizing the higher nonlinear coefficient (d33) compared to birefringent phase matching.
- Wide Transparent Spectrum: Covers 0.4 to 5 μm.
- Enhanced Damage Threshold: 5% MgO doping significantly improves the crystal’s damage threshold.
- Convenient Temperature Environment: QPM allows for efficient operation without stringent temperature controls.
- Absence of Spatial Walk-Off: Ensures stable and efficient non-linear interactions.
- Low Possibility of Photorefractive Issues: Reduces the likelihood of adverse effects during high-power operations.
Applications:
- Second Harmonic Generation (SHG): Efficiently doubles the frequency of incoming light.
- Sum Frequency Generation (SFG): Combines two different frequencies into a single, higher frequency.
- Difference Frequency Generation (DFG): Produces new frequencies by subtracting one frequency from another.
- Optical Parametric Amplification (OPA): Amplifies a signal beam by transferring energy from a pump beam.
- Optical Parametric Oscillation (OPO): Generates tunable laser light through non-linear optical processes.
- Optical Parametric Generation (OPG): Produces new frequencies through parametric down-conversion processes.
Kingwin Optics’ MgO crystals and waveguides are ideal for diverse frequency conversion applications, offering unparalleled efficiency and reliability. For more information or to check the availability of PPLN crystals, please visit our website.
