Product Overview

CASTECH's fiber-coupled acousto-optic modulators (FAOM) are compact, high-performance devices based on bulk-wave acousto-optic interaction. They can modulate both the amplitude of optical pulses and the frequency shift of light. Modulation speed, reflected in the rise time of the output optical pulses, determines a system's response speed and available bandwidth.

Why Fiber-Coupled

Compared with free-space acousto-optic devices, fiber coupling makes the modulator easier to operate and integrate and improves reliability. FAOMs are widely used in fiber sensing systems, fiber lasers, and related fields.

Key Features

• Modulates both optical pulse amplitude and light frequency in one device
• Polarization-maintaining and non-polarization-maintaining versions available
• Fiber end can be fitted with FC/APC and other connectors as needed
• Operating frequencies up to 300 MHz and rise times as low as 6 ns
• Customized parameter indicators available to match customer requirements
• Entire production process completed in-house at CASTECH

Highlight Specifications

• Frequency up to 300 MHz with rise/fall time as low as 6 ns (1064 nm, 300 MHz, PM980-XP fiber)
• Extinction ratio above 45 dB at 1064 nm and above 55 dB at 1550 nm
• Insertion loss as low as 1.2 dB (1064 nm, 100/120 MHz)
• Typical specifications cover 1064 nm and 1550 nm wavelengths

Full model-by-model specifications and part-number definitions (Model: CAFA-f-p-mxb-w-c-h) are available on our website. Visit castech.com for complete details.

Applications

• Industrial lasers
• Sensor communication
• Scientific research
• Quantum technology

Manufacturing Capability

Founded in 1990, CASTECH INC. (Shenzhen Stock Exchange: 002222) has grown over 30+ years into a globally recognized supplier of crystals, optics, and laser components.

• 450,000+ sq ft (approx. 40,000 sqm) manufacturing facility
• 1,000+ employees dedicated to performance and cost-effective solutions
• Around 50% of products exported worldwide
• Products produced independently throughout the entire process, with full customization available to meet specific customer requirements

Get in Touch

Contact CASTECH today to discuss custom frequency, wavelength, and fiber connector options for your application, or visit our website for the full technical datasheet.