Periodically-Poled Lithium Niobate 18.6–20.4 µm, 0.5 mm aperture
For use in the 1.0–1.5 µm wavelength range. With an active aperture of 0.5 mm and a periodic poling of 18.6–20.4 µm.
Full Product Description- Wavelength:
- 1.0–1.5 µm
Product description
G&H’s Periodically Poled Lithium Niobate (PPLN) crystals with poling periods from 18.6 to 20.4 µm and a 0.5 mm aperture are precision-engineered for efficient quasi-phase-matched nonlinear optical frequency conversion.
These crystals are ideal for mid-infrared generation through difference frequency generation (DFG), optical parametric oscillation (OPO), or sum frequency generation (SFG) using near-infrared pump sources. The tight aperture supports compact integration into fiber-coupled or miniaturized photonic systems, while the specified grating periods enable tuning across a wide wavelength range.
Each crystal is fabricated with high uniformity, quality surface polish, and stable domain structures for reliable performance in demanding applications.
Phase matching over very long propagation lengths is possible with our congruently grown PPLN manufactured from highly uniform Z-axis wafers.
Key features
- Phase matching over long propagation lengths
- Very low absorption
- High purity
- High fidelity domain structure
- Damage-resistant MgO:PPLN available
- Chirped, fan-out, and multi-period options
- Integrated optics compatibility
- In-house grown and poled wafers
Related Products
- Temperature tuning curves and guides
- Multiple grating chips for coarse tuning
- AR-coated chips for SHG or telecom
Specifications
| Name | Value |
|---|---|
| Crystal Type | Periodically Poled Lithium Niobate (PPLN) |
| Wavelength | 1.0–1.5 µm |
| Domain Periods | 5.2 – 31.2 µm |
| Material Options | CLN, MgO:LN |
| Coatings | AR / DAR available |
| Conversion Efficiency | deff > 14 pm/V (MgO:PPLN) |
| Tuning Range | Typically 30–80°C |
Applications
- Second harmonic generation (SHG) to green/blue
- Mid-IR DFG and OPO sources
- Spectroscopy and sensing
- RGB laser projection
- Missile countermeasure systems
