Nd:YVO4(Neodymium Doped Yttrium Orthovanadate) is the most efficient laser host crystal for diode pumping, particularly for low to middle power applications. Its superior absorption and emission characteristics make it ideal for various laser technologies. (read more)

Unlock precise frequency conversion with our Acousto-Optic Frequency Shifters (AOFS) - tailored for engineers seeking top-notch performance. (read more)

Compact and high-performance, our Fiber-Coupled Acousto-Optic Modulators (FAOM) utilize bulk wave acousto-optic interaction to modulate optical pulses' amplitude and frequency shift. Designed for speed and reliability, FAOMs offer fast response times with rise times as low as 6 ns, and support frequencies up to 300 MHz. Their fiber coupling ensures easy integration and high reliability... (read more)

CASTECH's Acousto-Optic Q-switches (AOQS) provide high damage thresholds and rapid switching for laser Q-switching applications. Designed to optimize laser performance, these devices enable the generation of high-peak-power giant pulses, making them ideal for laser marking, medical procedures, and material processing. (read more)

CASTECH offers precision CNC-polished aspherical lenses for high-performance optical applications, available with custom dimensions and coatings. (read more)

CASTECH's AOTFs offer fast, precise wavelength selection for applications in hyperspectral imaging, optical communication, and laser tuning, with excellent resolution and customizable features. (read more)

CASTECH provides custom optical assemblies with advanced bonding methods and high-precision manufacturing for demanding applications, offering superior wavefront distortion, beam deviation control, and high laser damage thresholds. (read more)

Yb:KGW is a high-performance laser gain material with a wide absorption spectrum at 980 nm and broad emission at 1023-1060 nm, ideal for short-pulse lasers and diode-pumped systems. (read more)

Discover the cutting-edge capabilities of Yb:CALGO, a revolutionary laser gain material boasting ultra-fast pulse generation and high-power efficiency. (read more)

Acousto-optic tunable filters (AOTF) are electronically controlled optical bandpass filters, offering rapid and precise wavelength selection across a wide spectrum for dynamic optical filtering. (read more)

Yb: CaF2 an ytterbium-doped calcium fluoride crystal grown by Czochralski technique, offers long fluorescence lifetime, broad absorption bands, and minimal nonlinear effects, ideal for high-power laser applications. (read more)

Experience precision modulation with our efficient 200 MHz fiber-coupled acousto-optic modulator (FCAOM), designed for superior performance. (read more)

CASTECH delivers high-quality optical assemblies, utilizing advanced design and testing capabilities to ensure exceptional performance across various applications. (read more)

CASTECH's KTP crystals are ideal for SHG, SFG, OPO, and electro-optic applications. They feature high efficiency, broad bandwidth, and excellent thermal stability, making them perfect for lasers, LiDAR, and optical communication. (read more)

CASTECH’s Yb:KGW offers high-efficiency laser gain with broad emission (1023-1060 nm), ideal for short-pulse lasers. It features high absorption at 980 nm and excellent diode-pumping efficiency. (read more)

CASTECH's AOTF offers accurate, fast, and adjustable wavelength selection for applications in spectral polarization, hyperspectral imaging, and optical communication, with a wide operating range and high resolution. (read more)

CASTECH's Fiber-Coupled Acousto-Optic Modulators (FAOMs) offer high-speed optical modulation with a rise time as low as 6 ns, featuring fiber coupling for enhanced reliability and seamless integration. Ideal for industrial, research, and quantum applications. (read more)

Unrivaled Precision for Engineering Excellence (read more)

Enhanced Performance for High-Power Laser Systems

CASTECH's GTR-KTP crystals offer superior gray-track resistance, lower absorption, and higher damage thresholds compared to conventional KTP crystals, making them ideal for high-repetition rate and high-power laser applications. (read more)

CASTECH’s high reflectivity mirrors, designed for advanced laser systems, offer exceptional performance with a reflectivity of over 99.999%. These mirrors are built for demanding applications requiring high laser damage thresholds and minimal optical loss, ensuring superior accuracy and reliability. (read more)

Unlock precise polarization control with CASTECH's Photoelastic Modulators (PEMs), designed for dynamic phase retardation and versatile optical applications. (read more)

High-Performance Optical Solutions (read more)

Explore CASTECH Photoelastic Modulators (PEMs): High-precision solutions for optical polarization modulation. (read more)

CASTECH's Super Mirrors deliver exceptional reflectivity (R > 99.999% at laser wavelengths) and high laser damage thresholds. Engineered for demanding applications, these mirrors feature advanced polishing, ion beam shaping, and coating technologies. (read more)

Yb: CaF² laser crystal offers long fluorescence lifetime, broad absorption/emission bands, and limited nonlinear effects, ideal for ultra-short pulse and high-power laser applications. (read more)

Enhance laser system performance with CASTECH's Acousto-Optic Multi-Channel Modulators, designed for independent control of multi-beam or collimated light. Suitable for applications like laser printing, micromachining, and material processing. (read more)

Acousto-optic frequency shifters (AOFS) provide precise frequency conversion of input light. Ideal for applications requiring frequency shifts and optical signal processing. (read more)

Compact and high-speed fiber-coupled acousto-optic modulators, ideal for controlling light amplitude and frequency shift in fiber lasers, sensing systems, and quantum technologies. (read more)

Advanced Laser Gain Material for High-Power and Ultra-Fast Pulses (read more)

Discover precision and power with our Acousto-Optic Q-Switches (AOQS), engineered for superior laser Q-switching applications. (read more)

Explore CASTECH's high-performance Faraday rotators, providing accurate non-reciprocal rotation and reliability for high-power laser applications. (read more)

CASTECH’s Acousto-Optic Modulators (AOM) enable precise intensity modulation of lasers outside the cavity, with modulation frequencies up to 300 MHz and rise/fall times as low as 6 ns. (read more)

CASTECH's Yb:YAG(Ytterbium-Doped Yttrium Aluminum Garnet) crystal is a superior laser material known for its higher absorption bandwidth, longer upper-laser level lifetime, and three to four times lower thermal loading compared to traditional Nd: YAG systems. It is particularly well-suited for high-efficiency diode pumping applications and serves as an excellent alternative to Nd:... (read more)

Yb:CALGO-, also known as Ytterbium Doped Calcium Gadolinium Aluminate (Yb), represents a promising advancement in laser gain materials with exceptional properties. Its tetragonal crystal structure enables broad emission spectra from 994 nm to 1050 nm under σ configuration when pumped at 979 nm in π configuration, resulting in an ultra-low quantum defect of 1.5%. (read more)

CASTECH’s high-quality KTP crystals deliver exceptional performance for applications in SHG of Nd-doped lasers, SFG for blue and red light generation, OPO systems, and electro-optic devices. Available with customizable sizes, coatings, and technical support. (read more)

CASTECH’s CNC precision-polished aspherical lenses are expertly designed to reduce spherical aberration, ideal for applications requiring single-element solutions. Available with custom dimensions and advanced AR coatings. (read more)

CASTECH's high-speed acousto-optic modulators enable precise laser intensity adjustment, ideal for a range of industrial applications requiring exact modulation control. (read more)

CASTECH’s acousto-optic frequency shifters (AOFS) enable precise frequency conversion of laser light, with custom specifications and high performance. (read more)

CASTECH's high reflectivity mirrors offer unparalleled performance with reflectivity exceeding 99.999% at 1550 ± 50 nm, designed for advanced laser applications. (read more)

CASTECH's acousto-optic Q-switches deliver high damage thresholds and fast switching speeds, ideal for laser marking, medical procedures, and material processing. (read more)

CASTECH specializes in designing and testing high-quality optical assemblies, offering solutions ranging from glass-glass and glass-metal components to advanced bonded assemblies for high-power laser systems and custom optics. (read more)

High-efficiency diffraction gratings for telecommunication, customizable in dimension and shape, offering superior stability and performance for optical communication applications. (read more)

Discover the power of Ybcrystal—a superior laser-active material revolutionizing laser technology. (read more)

Yb:KGW, ytterbium-doped potassium gadolinium tungstate, is a superior laser gain material with broad emission (1023-1060 nm) and high efficiency for diode pumping. (read more)

CASTECH's Acousto-Optic Deflectors (AODF) enable high-speed laser beam scanning by adjusting RF driving frequencies, supporting random positioning, continuous line scanning, and sequential point deflection. (read more)

Acousto-optic multi-channel modulators (AOMM) are advanced devices designed for the independent modulation of multiple beams or line collimated light, ideal for applications requiring precise control and high efficiency. (read more)

• Various size of bulk and finished high quality YVO4 crystals up to φ35x50mm3 and φ20x20mm3, respectively;
• Large quantity YVO4 wedges and displacers used for fiber optical isolators and circulators, interleavers, in size of 1.25x1.25x0.5mm3 to 3x3x15mm3 to meet OEM customer’s requirement;
• Quick delivery;
• Very competitive price;<.../...

Description

CASTECH offers two standard dielectric broadband coatings . Other coatings are available upon request.

• High quality ,excellent value
• Broaband dielectric coatings
• Hight damage threshrod