High-precision aspheric lenses for superior optical performance with customizable design and coatings. (read more)

Compact, high-performance AOFS with customizable frequency shifts for interferometry, laser cooling, and optical detection. (read more)

Wide transmission range, high SHG efficiency, and superior laser conversion capabilities for advanced laser and OPO applications. (read more)

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

Solid-state, electronically addressable acousto-optic tunable filters (AOTFs) offering precise, fast wavelength selection for spectral polarization, hyperspectral imaging, optical communication, and more. (read more)

High-performance acousto-optic modulators (AOMs) for precise intensity modulation of lasers, offering fast rise/fall times and customizable solutions for laser marking, photolithography, medical procedures, and material processing. (read more)

High-performance MgO:LiNbO3 crystals for NCPM SHG, SFG, OPO, OPA, and integrated waveguides. Features superior damage threshold, broad transparency, and excellent NLO properties. (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)

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

Optimize laser performance with our high-damage-threshold Acousto-Optic Q-Switches, delivering rapid switching, enhanced stability, and broad wavelength coverage for industrial and medical applications. (read more)

RTP crystals offer exceptional damage threshold, high resistivity, and broad IR/Visible transmission, ideal for nonlinear and electro-optical devices in demanding industrial and research applications. (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)

KDP and DKDP are widely-used NLO crystals for Nd:YAG laser frequency conversion and electro-optic modulation. Known for high damage thresholds and excellent UV transmission, they are essential for various laser applications. (read more)

Nd:YVO4 is the most efficient laser crystal for diode pumping, offering superior absorption and emission features, ideal for low to middle power applications in fields like material processing, medical diagnostics, and laser printing. (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)

Yb:YAG offers superior diode-pumping efficiency, lower thermal loading, and high optical quality, ideal for laser systems requiring high performance and reliability. (read more)

Advanced acousto-optic deflectors (AODFs) for high-speed, solid-state light beam scanning, offering precise control, high scan rates, and broad applications in micromachining, laser displays, and optical inspection. (read more)

CASTECH Photoelastic Modulators (PEMs) enable precise polarization control for advanced applications in quantum sensing, spectroscopy, and astronomy, offering high modulation frequency and broad wavelength range. (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, 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)

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)

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)

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)

Compact, high-speed fiber-coupled acousto-optic modulators for precise amplitude and frequency modulation, ideal for fiber sensing systems, lasers, and advanced scientific applications. (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)

High-precision photoelastic modulators with wide wavelength range, ideal for polarization measurement, quantum sensing, and spectroscopy applications in UV, visible, and infrared bands. (read more)

Achieve high-speed, precise laser beam scanning with Acousto-Optic Deflectors (AODFs) designed for applications in laser displays, micromachining, and optical inspection. (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 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)

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)

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)

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)

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)

Description

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

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