Announcements

CASTECH, Inc. has promoted these products / services:

CASTECH, Inc. - Optical Crystals-YVO4

The Yttrium Orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. It has good temperature stability and physical and mechanical properties. It is ideal for optical polarizing components because of its wide transparency range and large birefringence. It is an excellent synthetic substitute for Calcite (CaCO3) and Rutile (TiO2) crystals in many applications...... (read more)

CASTECH, Inc. - Birefringent Crystals

The Yttrium Orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. (read more)

CASTECH, Inc. - Optical Coating - Laser Line Dielectric Coatings

These coatings are highly efficient reflectors optimized for a narrow wavelength range. CASTECH offers eight standard dielectric coatings with substrates. (read more)

CASTECH, Inc. - CLBO Crystals

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). (read more)

CASTECH, Inc. - KTP Crystal

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. (read more)

CASTECH, Inc. - Laser Crystals - KTP Crystal

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. (read more)

CASTECH, Inc. - BBO Crystal

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. (read more)

CASTECH, Inc. - BBO laser Crystal

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. (read more)

CASTECH, Inc. - KD*P & KDP

Potassium Dihydrogen Phosphate (KDP) and Potassium Dideuterium Phosphate (KD*P ) are among the most widely-used commercial NLO materials, characterized by good UV transmission, high damage threshold, and high birefringence, though their NLO coefficients are relatively low. They are usually used for doubling, tripling and quadrupling of a Nd:YAG laser under the room temperature. (read more)

CASTECH, Inc. - Nd:YVO4

Nd:YVO4 is the most efficient laser host crystal for diode pumping among the current commercial laser crystals, especially, for low to middle power density. This is mainly for its absorption and emission features surpassing Nd:YAG. (read more)

CASTECH, Inc. - KTP Crystal

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. (read more)

CASTECH, Inc. - Cylinder Lenses

Cylinder Lenses are typically used to focus incoming light to a line, or to change the aspect ratio of an image. Cylindrical Lenses have a single cylindrical surface that causes incoming light to be focused in only a single dimension, stretching the image. (read more)

CASTECH, Inc. - AO Modulator

An acousto-optic modulator (AOM) uses sound waves within a crystal to create a diffraction grating. As the power of the applied RF signal is varied, the amount of diffracted light varies proportionally. Acousto-optic modulators can be used like a shutter, or as a variable attenuator. (read more)

CASTECH, Inc. - Fiber-Free Space Isolators

CASTECH's high power fiber to free space isolators have center wavelength of 980/1030/1064nm, could maintain frequency stability in fiber lasers, fiber amplifier, optical sensor. High power fiber to free space isolators’ handling power up to 200W. CASTECH's fiber to free space isolators are with expanded beam output and Non-Expanded beam isolators are also available. (read more)

CASTECH, Inc. - Free Space Isolators

CASTECH's Free Space Isolators could maintain the light's linear polarization, through rotating the plane of polarized light 45°in the forward direction and an additional 45°of non-reciprocal rotation in the reverse direction. CASTECH free space isolator series include 2 types :Polarization and Polarization Indepent. (read more)

CASTECH, Inc. - Birefringent Crystals

The Yttrium Orthovanadate (YVO4) is a positive uniaxial crystal grown with Czochralski method. (read more)

CASTECH, Inc. - KD*P Cells

CSATECH offer different kinds of KD*P Pockels Cells. The DPC-R series are cylindrical and the DPC-S series are cubic. For DPC-R series, the electrode connection can be optional among wires , thread and pin. And also, it's available with integrated, pre-adjusted Brewster polarizer such as DPC-R8S-PB and with ceramic to control the aperture such as DPC-R8S-PC. (read more)

CASTECH, Inc. - LBO Crystal

Lithium Triborate (LiB3O5 or LBO) is an excellent nonlinear optical crystal discovered and developed by FIRSM, 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. (read more)

CASTECH, Inc. - Er,Cr:YSGG

Er,Cr:YSGG (Erbium,Chromium doped Yttrium Scandium Gallium Garnet) provides an efficient laser crystal for generating 2800nm light in an important water absorption band. It becomes one of the most promising laser crystals recently owing to its high conversion efficiency,stable chemical properties,long fluorescent lifetime. (read more)

CASTECH, Inc. - Laser Crystal

Yb:CaGdAlO4(called CALGO) is a promising new laser gain material which possess several important advantages. (read more)

CASTECH, Inc. - Nd:YAG

Nd:YAG is the earliest and most famous laser host crystal. Since it combines great advantages in many basic properties, Nd:YAG is the ubiquitous presence for near-infrared solid-state lasers and their frequency-doubler, tripler, and higher order multiplier. (read more)

CASTECH, Inc. - Yb:KGW

Ytterbium doped Potassium-Gadolinium Tungstate crystals - (Yb:KGd(WO4)2 or Yb:KGW) is an excellent laser gain material which has important advantages over the widely used Nd3+ doped materials. Its broad spectral emission band 1023-1060nm allows the generation of short (ps or fs) laser pulses. (read more)

CASTECH, Inc. - Acoust-Optical Laser RF Driver

CASTECH's Acoust-Optical Driver works with Acoust-Optical Q-switch. the frequency of the product is 24MHz, 27MHz, 40.68MHz or 80MHz and the RF power can be up to 24W. Its control patterns are FPS, PPK, R05 or R04. (read more)

CASTECH, Inc. - optical crystals-UV Nonlinear-CLBO Crystals

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, (read more)

CASTECH, Inc. - Laser Crystals-Yb:CaGdAlO4

Yb:CaGdAlO4(called CALGO) is a promising new laser gain material which possess several important advantages. The crystal structure of CALGO is tetragonal. When it is pumped at 979nm under pi configuration, we can get broad emission spectra from 994nm to 1050nm in theta configuration. This implies a very small quantum defect (down to 1.5%) and gives a good expectation of obtaining ultra-s... (read more)

CASTECH, Inc. - Optical Circulator

Castech's high power Optical Circulator could routes incoming signals from Port1 to Port2, incoming port2 signals to port3. This component has excellent performance of low insertion loss, low PDL and high stability. (read more)

CASTECH, Inc. - Magneto-Optical Crystals

TSAG is a key isolator material for next generation fiber laser. (read more)

CASTECH, Inc. - BBO Cells

Pockels Cells are used to change the polarization state of light passing through it when a voltage is applied to the electrodes of electro-optic crystals. BBO Pockels Cells operate from approximately 0.2 to 1.65 µm and aren't subject to tracking degradation. Due to the low piezoelectric coupling coefficients of BBO, our cells function at repetition rates of hundreds of kilohertz. (read more)

CASTECH, Inc. - Gratings

CASTECH’s Greating is featured by:

  • High diffraction efficiency
  • Low stray light
  • Both reflection and transmission types
  • Customized design available
(read more)
CASTECH, Inc. - Nd:YLF

CASTECH grows Nd:YLF crystals using Czochralski method. The use of high quality starting materials for crystal growth, whole boule interferometry, and precise inspection of scattering particle in crystal using He-Ne laser assures that each crystal will perform well. (read more)

CASTECH, Inc. - Prisms

Optical Prisms are used to redirect light at a designated angle. Optical Prisms are ideal for ray deviation, or for adjusting the orientation of an image. An Optical Prism’s design determines how light interacts with it. When light enters an Optical Prism, it either reflects off an individual surface or several surfaces before exiting, or is refracted as it travels through the subs... (read more)

CASTECH, Inc. - In-line isolator

CASTECH's high power in-line isolators have center wavelength of 980/1030/1064nm, could maintain frequency stability in fiber lasers, fiber amplifier, optical sensor. High power in-line Isolators handling power are up to 100W. (read more)

CASTECH, Inc. - Scintillation Crystals

Cadium tungstate (CdWO4, CWO) single crystal is an important scintillation materials applied in the radiation detection technology, especially for security checking , industrial CT and medical imaging. (read more)

CASTECH, Inc. - EO Driver-Laser Components

Pockels Cells Driver is applied with Pockels Cells for laser pulse, pulse picking, and laser system. When input the trigger signal the driver or set a certain frequency, the driver will produce the same frequency high voltage signal. The light of the polarization state passing through the Pockels Cells is changed due to the HV signal . (read more)

CASTECH, Inc. - Adjustable Laser Beam Expanders

CASTECH's adjustable beam expanders have a conventional working wavelength of 355nm, the magnification can be 2-10 times. It has many advantages, such as compact, divergent angle adjustable and the diameter of the output beam is large. It is widely used in laser processing. (read more)

CASTECH, Inc. - Faraday Rotators with 100W of Power Handling

CASTECH's Faraday Rotators have high power handling up to 100W of average input power in 400-4500nm wavelength range. It could maintain the light's linear polarization, through rotating the plane of polarized light 45°in the forward direction and an additional 45°of non-reciprocal rotation in the reverse direction. (read more)

CASTECH, Inc. - AO Q-Switch

CASTECH's AO Q-Switch is industrial grade product and it can meet the different needs of the customer. It has many advantages, such as compact, high damage threshold and high efficiency. It is widely used in material processing and scientific. In addition, it also can be customized to the parameters according to customer demand. (read more)

News articles and press releases for CASTECH, Inc.:

07/12/2017

CASTECH annouces new laser crystal Yb:CALGO.

07/12/2017

CASTECH annouces Chirped Mirrors compensating for pulse broadening effects in ultra-fast laser applications with different band widths......

07/12/2017

CASTECH Inc, a leading manufacturer of crystals and precision optics for laser and telecom industries, announced its development in super-polishing technology......

07/12/2017

CASTECH Inc, a leading manufacturer of crystals and precision optics for laser and telecom industries, announced its new high power polarizing beam splitter cube (PBS)......