Haitong Optical
Laser crystals, nonlinear crystals and optical materials for photonic systems.
Laser Crystals
A 1535 nm microchip laser core combines Er,Yb-doped glass with a Co:spinel saturable absorber. Bonding the gain medium and absorber into one compact element supports pulsed ranging and lidar designs while helping control...
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Optical Materials
Alpha-BBO is a birefringent optical material for polarizers and beam displacers, with a stated transparency range of 189–3500 nm. Its centrosymmetric structure suppresses second-order nonlinear conversion; it must be dis...
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Laser Crystals
Chromium-doped alexandrite is a tunable solid-state laser material for the 710–800 nm region. Its energy storage and thermal shock resistance support pulsed systems used in spectroscopy, lidar and medical equipment.
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Nonlinear Crystals
Beta-BBO is a nonlinear crystal used for harmonic generation, optical parametric conversion and electro-optic switching. Thin-crystal and larger-aperture reference configurations serve different pulse durations, conversi...
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Q-switch & Polarization Crystals
Cobalt-doped magnesium aluminate spinel, Co:MgAl2O4, is a saturable absorber for passive Q-switching around 1.2–1.6 µm, including Er:glass systems. Initial transmission, aperture and coating determine the operating confi...
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Q-switch & Polarization Crystals
Cr4+:YAG provides passive Q-switching for Nd- and Yb-based lasers in the 0.8–1.2 µm range. Selecting initial transmission and absorber dimensions sets the loss and energy-storage conditions without an external electro-op...
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Laser Crystals
Diffusion-bonded composites join doped gain sections to undoped end caps or other crystal sections. Configurations include vanadates, YAG microchips and nonlinear-crystal assemblies, each addressing thermal loading, inte...
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Nonlinear Crystals
Deuterated potassium dihydrogen phosphate, DKDP or KD*P, changes birefringence under an applied electric field. Combined with a polarizer, it forms a Pockels-cell Q-switch; optical absorption and the selected wavelength ...
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Laser Crystals
Erbium- and ytterbium-doped phosphate glass supports laser emission near 1.54 µm. The EAT14, Cr14 and WM4 reference compositions address different pumping and laser-design requirements.
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Laser Crystals
Er:YAG emits near 2.94 µm, where water absorption is strong. The reference data cover heavily erbium-doped rods and slabs, together with orientation, surface and optical-quality requirements for laser-system design.
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Nonlinear Crystals
Potassium titanyl arsenate, KTA, is a nonlinear material for optical parametric oscillation, frequency conversion and electro-optic modulation. Its reference properties include broad conversion bandwidths, low walk-off a...
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Nonlinear Crystals
Potassium titanyl phosphate, KTP, combines nonlinear conversion with useful electro-optic properties. Common applications include Nd:YAG frequency doubling and near-infrared parametric generation; phase matching and ther...
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