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NLO Crystals

NLO Crystals

LBO
LBO
LBO
Lithium Triborate (LiB3O5 or LBO) is an excellent nonlinear optical crystal discovered and developed by FIRSM, CAS (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences). CASTECH Inc. has the exclusive rights to produce, manufacture and market the patented LBO crystal and its NLO devices. The patent number is 4,826,283 in USA, 2023845 in Japan and 88,102,084.2 in China.
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BBO
BBO
BBO
Beta-Barium Borate (β-BaB2O4 or BBO), discovered and developed by FIRSM, CAS (Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences), now is manufactured and marketed by CASTECH Inc. The high-quality crystal boule is steadily available from CASTECH, who holds specialized proprietary techniques (flux-method) of the BBO crystal growth.
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BIBO
BiB3O6 (BIBO) is a newly developed nonlinear optical crystal. It possesses large effective nonlinear coefficient, high damage threshold and inertness with respect to moisture. Its nonlinear coefficient is 3.5 - 4 times higher than that of LBO, 1.5 -2 times higher than that of BBO. It is a promising doubling crystal to produce blue laser. The top-seeded solution growth (TSSG) technique is used at CASTECH for the growth of BIBO single crystals.
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CLBO
Cesium Lithium Borate (CsLiB6O10,CLBO) is a newly developed crystal with excellent UV nonlinear feature,and widely used for semiconductor inspection,micro processing,bio-medical,UV-LIDAR,etc. Compared to BBO,it has larger spectral and temperature acceptance,larger angle tolerance and smaller walk-off angle (see Table 1). These advantages make CLBO obtain larger SHG conversion efficiencies than BBO. Moreover,it is suitable for FOHG and FHG of high-power Nd:YAG laser.
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KTP
KTP
KTP
Potassium Titanyl Phosphate (KTiOPO4 or KTP) is widely used in both commercial and military lasers including laboratory and medical systems, range-finders, lidar, optical communication and industrial systems.
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GTR-KTP
Potassium Titanyl Phosphate (KTiOPO4 or KTP) is an excellent NLO crystal, widely used in both commercial and military lasers. However conventional KTP suffer a significant drawbacks. The gray track phenomena in conventional KTP limit its application in high repetition and high power laser system. The occurrence of gray-track can be measured by an increase of bulk absorption by a strong CW 532nm green laser within several minutes. This measurement can be performed with Photo-thermal Common-path interferometer.
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RTP
RTP
RTP
RTP (Rubidium Titanyle Phosphate – RbTiOPO4) is an isomorph of KTP crystal which is used in nonlinear and Electro-Optical applications. It has advantages of high damage threshold (about 1.8 times of KTP), high resistivity, high repetition rate, no hygroscopic and no induced piezo-electric effect with electrical signals up to 60 kHz. Its transmission range is 350nm to 4500nm.
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KTA
KTA
KTA
Potassium Titanyle Arsenate (KTiOAsO4), or KTA crystal, is an excellent nonlinear optical crystal for Optical Parametric Oscillation (OPO) application. It has better non-linear optical and electro-optical coefficients, significantly reduced absorption in the 2.0-5.0 µm region, broad angular and temperature bandwidth, low dielectric constants. And its low ionic conductivities result in higher damage threshold compared with KTP .
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LiNbO3
LiNbO3 Crystal is widely used as frequency doublers for wavelength >1μm and optical parametric oscillators(OPOs) pumped at 1064 nm as well as quasi-phase-matched (QPM) devices. Additionally due to its large Electro-Optic(E-O) and Acousto-Optic(A-O) coefficients, LiNbO3 crystal is the most commonly used material for Pockel Cells, Q-switches and phase modulators, waveguide substrate, and surface acoustic wave(SAW) wafers, etc. CASTECH can provide LiNbO3 crystals with high quality and large size for all these applications.
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