Periodically-Poled Lithium Niobate 25.5–28.7 or 28.5–29.9 µm, 0.5 mm aperture
For use in the 1.3–1.6 µm wavelength range. With an active aperture of 0.5 mm and a periodic poling of 25.5–28.7 or 28.5–29.9 µm.
Full Product Description- Wavelength:
- 1.3–1.6 µm
Product description
G&H Periodically Poled Lithium Niobate (PPLN) crystals enable efficient mid-IR frequency conversion in compact laser systems.
PPLN crystals with poling periods of 25.5–28.7 µm or 28.5–29.9 µm and a 0.5 mm aperture are designed for efficient quasi-phase-matched frequency conversion in the mid-infrared spectral range. These grating periods are optimized for difference frequency generation (DFG), sum frequency generation (SFG), and optical parametric oscillation (OPO) using near-IR pump sources.
The narrow 0.5 mm aperture enables compact integration into precision photonic systems where space is limited. Each crystal is fabricated with tight tolerances, stable domain inversion, and high optical quality to ensure reliable and consistent performance in demanding nonlinear 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 | 1.3–1.6 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