Gray-track resistant GTR-KTP crystals offer low absorption, high damage threshold, and large sizes for high-power, high-repetition laser systems. (read more)

Compact AOTF module with fast wavelength tuning, high diffraction efficiency, and precise spectral resolution for spectroscopy, imaging, and laser-based optical systems. (read more)

Acousto-optic deflectors (AODs) are designed for high-speed, solid-state laser beam scanning, enabling precise and flexible optical control without mechanical movement. (read more)

CASTECH’s fiber-coupled acousto-optic modulators offer ultra-fast 6 ns rise times and up to 300 MHz modulation, ideal for lasers, sensing, research, and quantum systems. (read more)

CASTECH Super Mirrors deliver ultra-high reflectivity (>99.999%), exceptional durability, and customizable options, ideal for precision lasers in aerospace, metrology, and environmental monitoring. (read more)

Next-gen nonlinear optical marvel (read more)

Magnesium-doped LiNbO₃ crystals offering high damage threshold and superior NLO performance, ideal for SHG, SFG, OPO, and OPA applications. (read more)

Wide-transmission β-BBO crystal with high SHG efficiency for advanced laser and OPO applications. (read more)

Nd:YVO4 crystals offer unmatched efficiency for diode-pumped lasers, ideal for machining, spectroscopy, and medical diagnostics. Their superior absorption and emission characteristics make them a versatile choice for professionals. (read more)

CASTECH Yb:KGW crystals deliver high efficiency, broad emission range, and low quantum defect, ideal for picosecond and femtosecond lasers in industrial, medical, and scientific high-power systems. (read more)

Yb:KGW crystal enables high-power, short-pulse lasers for industrial and scientific applications. (read more)

Yb:CaF2 is a ytterbium-doped calcium fluoride crystal, offering long fluorescence lifetime, broad absorption bands, and low nonlinear effects, making it ideal for high-power and diode-pumped laser applications. (read more)

High-performance Yb:CALGO laser crystal with ultra-low quantum defect, broad emission, and high thermal conductivity for high-power, ultra-fast pulse applications. (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)

CASTECH's 2D Acousto-Optic Deflector delivers nRad-level positioning accuracy, scan rates exceeding 200 MHz, and inertia-free beam steering for semiconductor, photonics, and biomedical applications. (read more)

CASTECH AO Q-Switches offer high damage thresholds and fast switching for precise, high-energy laser pulses in marking, medical, and processing applications. (read more)

CASTECH acousto-optic modulators deliver ultra-fast laser control, 300 MHz modulation, and customizable parameters, ideal for laser marking, photolithography, medical, and precision material processing. (read more)

High-performance CLBO crystals with excellent UV transmittance, moisture resistance, and high damage threshold, ideal for fourth and fifth harmonic generation in Raman spectroscopy, wafer inspection, and biomedical research. (read more)

CASTECH 2D acousto-optic deflector enables ultra-fast, inertia-free laser scanning with nrad-level precision and high diffraction efficiency, supporting real-time beam steering in LiDAR, microscopy, and advanced optical systems. (read more)

Acousto-optic tunable filters (AOTF) provide fast, electronic wavelength selection with compact design and precise optical control for imaging and photonic systems. (read more)

High-efficiency diffraction gratings designed for 5G optical communication and in-vehicle LiDAR systems, delivering precise beam control, low optical loss, and stable performance in advanced photonics applications. (read more)

CASTECH’s solid-state AOTFs deliver fast, precise wavelength tuning for spectral polarization, hyperspectral imaging, optical communications, and laser tuning. Features include wide spectral range, high resolution, and fiber-coupling options. (read more)

CASTECH high-damage-threshold Acousto-Optic Q-Switches deliver rapid switching, broad wavelength range, and enhanced stability for industrial and medical lasers. (read more)

CASTECH’s KTP crystals offer high nonlinear efficiency, broad bandwidth, and superior electro-optic properties, ideal for laser systems, medical, LiDAR, and communication applications. (read more)

CASTECH acousto-optic frequency shifters provide precise 20–300 MHz frequency control with customizable configurations, enabling stable and efficient optical frequency modulation in interferometry, laser cooling, and precision measurement applications. (read more)

CASTECH photoelastic modulators provide high-precision phase retardation, wide wavelength compatibility, and fast modulation, enabling accurate polarization control in spectroscopy, quantum sensing, and advanced optical measurement systems. (read more)

CASTECH FAOMs offer 6 ns rise time, 300 MHz bandwidth, and customizable fiber coupling, enabling precise and stable laser modulation for industrial, sensing, and advanced photonics applications. (read more)

High-speed acousto-optic deflectors delivering >200 MHz scanning with nanoradian precision for laser displays, micromachining, and optical inspection. (read more)

Designed for fiber laser and sensing systems, CASTECH Fiber-Coupled AOMs deliver up to 300 MHz modulation, 6 ns rise time, and high extinction ratios for precise optical control. (read more)

High-speed fiber-coupled acousto-optic modulators with 6 ns rise time and up to 300 MHz frequency, ideal for fiber lasers, sensing, and quantum applications. (read more)

Advanced 10-channel acousto-optic modulator delivering precise, low-loss, and high-efficiency multi-beam control for industrial laser systems and precision manufacturing. (read more)

CNC-polished aspherical lenses minimizing spherical aberration for compact optical systems, with custom sizes and advanced AR coatings supporting UV to IR imaging and laser applications. (read more)

High-performance mirrors with >99.999% reflectivity, fused silica substrate, and low optical loss, ideal for advanced laser systems in aerospace, medical, and scientific research. (read more)

High-precision optical laser assemblies with advanced bonding, minimal wavefront distortion, and customizable glass-to-glass or glass-to-metal integration for industrial and research laser systems. (read more)

High-speed acousto-optic deflector (AOD) delivering >200 MHz scan rates with nanoradian precision. Designed for laser displays, micromachining, interferometry, and optical inspection systems. (read more)

High-speed photoelastic modulators enabling precise polarization control for spectroscopy, quantum sensing, and advanced optical systems. (read more)

Fast-response, low-loss fiber-coupled AOM designed for fiber lasers, micromachining, and optical sensing—offering superior modulation performance and system integration flexibility. (read more)

High-precision aspherical lenses with custom sizes and AR coatings for superior optical performance. (read more)

Glass-glass and glass-metal optical assemblies featuring λ/20 wavefront distortion, high laser damage thresholds, and beam alignment accuracy—ideal for high-power laser, metrology, and optomechanical systems. (read more)

Acousto-optic deflectors enable fast, non-mechanical laser beam steering with high precision and wide bandwidth, ideal for applications requiring rapid scanning, positioning, and dynamic optical control. (read more)

CASTECH PEMs deliver ultra-fast 50kHz polarization control across UV, visible, and IR bands, ideal for quantum sensing, spectroscopy, and optical measurement systems. (read more)

CASTECH AOTFs offer fast, precise, electronically tunable wavelength selection for ultrafast lasers, hyperspectral imaging, and optical systems. (read more)

Precision CNC-polished aspherical lenses offering exceptional optical clarity, minimal aberration, and high laser damage resistance for imaging, lasers, medical, and consumer electronics. (read more)

Acousto-optic modulator delivering ultra-fast laser intensity control up to 300 MHz with nanosecond response. Supports flexible RF modulation and customization, enabling precise, reliable performance in industrial processing, medical lasers, and photonics applications. (read more)

High-precision AOFS with TeO₂ crystals, providing 20–300 MHz frequency shifts for interferometry, laser cooling, and optical detection. (read more)

High laser damage threshold and wide spectral transmission RTP crystals for precise electro-optic devices in industrial, medical, and scientific applications. (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