PPLN Crystal Feature Periodically-poled lithium niobate (PPLN) is a domain-engineered lithium niobate crystal, used mainly for achieving quasi-phase-matching in nonlinear optics. The ferroelectric domains point alternatively to the +c and the −c direction, with a period of typically between 5 and 35 µm. The shorter periods of this range are used for second harmonic generation, while the longer ones for optical parametric oscillation. Periodic poling can be achieved by electrical poling with periodically structured electrode. Controlled heating of the crystal can be used to fine-tune phase matching in the medium due to a slight variation of the dispersion with temperature. Frequency conversion method: SHG, SFG, DFG, OPO, OPG, OPA Crystal material: PPLN, PP5% MgO: CLN, PPSLN Polarized crystal type: Sector, multi-cycle, cascade; Quasi-periodic, uniform, nonperiodic; Bulk, buried waveguide, ridge waveguide structure Wavelength range: 450nm-5000 nm Matching temperature 0 – 200 ℃ Chip size (length * width * thickness):(0.5-55mm) * (0.5-10mm) * (0.5-2.0mm) Cycle:4.5-200 um Surface polishing: Optical grade flat or angle polishing Surface coatings: Single and multi-point antireflection and highly reflective coatings Email: [email protected] Tel:+86-755-2372 7820 Fax：+86-755-2302 3823 www.hobbite.net Address:2F, Guohuitong Business Center, BaoAn District, ShenZhen City, GuangDong Province, PRC. Zip Code:518