The KTF (potassium terbium fluoride) crystal is a high‑performance, low‑absorption magneto‑optic crystal specifically developed for high‑power laser isolators. Leveraging our independently developed crystal growth and fabrication technology, it exhibits low absorption characteristics, enabling high‑power devices to operate stably without the need for complex cooling systems. This provides reliable core material support for high‑power laser systems, effectively driving performance upgrades and expanding the application scope of laser devices.
Specifications:
Material | KTF |
Phase Matching | Type II non‑critical phase matching, θ = 90° ± 0.1°, φ = 23.5° ± 0.1° |
Wavefront Distortion | 4-5Mohs |
Crystal Size | 3x3x5mm, 4x4x7mm, 5x5x10mm |
Tolerance | +/-0.1mm |
Parallelism | 20" |
Perpendicularity | 15' |
Flatness | λ/8 @ 633 nm |
Surface Quality | 10/5 |
Coating | Dual‑band anti‑reflection coating: Ravg < 0.1% @ 1064 nm & Ravg < 0.15% @ 532 nm |
| Laser Damage Threshold | > 2.0 J/cm² (10 ns pulse, 10 Hz repetition rate, @ 1064 nm, Φ 0.5 mm beam) |
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