Applications

• Laser sensing system
• Ultrafast laser system
• OCT system
• Laser detection etc

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)

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)

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)

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)

High-Performance Optical Solutions (read more)

Optimize Your Fiber Laser Systems with High-Performance Isolators (read more)

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

Next-gen nonlinear optical marvel (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)

CASTECH has developed high-speed acousto-optic modulators that precisely adjust laser intensity for various industrial applications. (read more)

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

Precision Light Modulation for Varied Applications (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)

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

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

Precision Design for Superior Performance (read more)

Compact, High-Performance 200 MHz Fiber-Coupled AOM for Precision Pulse Picking and Modulation. (read more)

Innovative Grating Technology for Ultra-Short, High-Energy Laser Pulses (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)

CASTECH presents a cutting-edge high DE reflection grating, tailored for the optical communication industry. This precision-designed grating offers exceptional diffraction efficiency and unparalleled uniformity, making it an ideal choice for applications like Wavelength Selective Switches (WSS) and more. (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)

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

Explore CASTECH's high-performance Faraday rotators, providing accurate non-reciprocal rotation and reliability for high-power laser applications. (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 acousto-optic frequency shifters (AOFS) enable precise frequency conversion of laser light, with custom specifications and high performance. (read more)

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

Discover CASTECH's advanced diffraction gratings tailored for telecommunication applications, offering high efficiency and customizable solutions. (read more)

Applications: Q-switching, Regenerative amplifier, Pulse picker,read more... (read more)

Unrivaled Precision for Engineering Excellence (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)

Discover CASTECH's KTP Crystal, delivering exceptional nonlinear optical performance for a range of laser applications. (read more)

Aspherical lenses from CASTECH revolutionize optical systems with unparalleled precision, whether for prototypes or mass production. (read more)

Fiber-Coupled Acousto-Optic Modulators: Cutting-Edge Performance for Diverse Applications; High-Performance Modulation with Unmatched Flexibility (read more)

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

Tailored Solutions for Optimal Broadband Performance (read more)

CASTECH utilizes the high-quality crystals and optical components for the production of Fiber-Free Space Isolators to deliver great performance. The power is ranging from 300 mW to 200 W. The products are featured with high isolation(35 dB for single-stage series and 50 dB for dual-stage series), low insertion loss, excellent environmental stability and free of thermal lens effect. (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)

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.
Application in Nd:YAG Lasers:
BBO is an efficient NLO crystal for the second, third... (read more)

With compact design, small rise-time/fall-time, low insertion loss, high extinction ratio and excellent stability, CASTECH's 200 MHz fiber-coupled AOM is ideal for pulse picking, high-speed modulation applications. (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;<.../...

Versatile Precision Optics for Laser 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