https://cdn.gophotonics.com/news/cc_638924883205575535.jpg712370
IntraAction, a pioneering provider of acousto-optic devices since 1975, has built a strong reputation for delivering advanced solutions that push the boundaries of photonics innovation. The company’s diverse portfolio includes acousto-optic modulators, deflectors, frequency shifters, Q-switches, mode lockers, and fiber-pigtailed modules, each designed to deliver exceptional performance, precision, and reliability. With a strong emphasis on engineering excellence, IntraAction tailors its solutions to support both standard and custom requirements, catering to the needs of OEMs, research institutions, and industry leaders alike.
GoPhotonics highlights IntraAction’s contributions across key application areas, from telecommunications and spectroscopy to laser material processing, microscopy, and imaging. By combining decades of expertise with ongoing R&D, the company continues to set benchmarks in acousto-optic technology, ensuring that customers benefit from scalable, dependable, and cost-effective solutions. Through its commitment to innovation and customer-focused design, IntraAction strengthens its role as a trusted partner in advancing the future of photonics.
ML Series: Acousto-Optic Mode Lockers
The ML Series comprises high-performance fused silica Acousto-Optic Mode Lockers designed for stable laser operation at 1064 nm. By repetitively modulating intracavity losses at laser resonance frequencies, these devices provide dependable synchronization and precise mode-locking. Operating within an RF frequency range of 20 MHz to 70 MHz, the ML Series delivers consistent performance supported by a typical RF drive power of 2 W, ensuring strong acoustic excitation and reliable operation across applications. To accommodate diverse optical setups, the ML Series can be configured with Brewster-cut, rhomboid, or anti-reflection (AR) coated windows, offering flexibility in system design. With an available mode spacing of 330 kHz - 460 kHz, these mode lockers integrate seamlessly into common laser cavity designs.
AGM-406A3: Acousto-Optic Frequency Shifter
The AGM-406A3 is a high-performance acousto-optic frequency shifter is a Single-Crystal Germanium Acousto-Optic Frequency Shifter (AOFS) that operates at a wavelength of 3.39 μm. It has an optical frequency shift range of 30 MHz - 50 MHz and acoustic velocity of 5.5 mm / μsec. This AOFS has a modulation -3dB bandwidth of 825 kHz and beam separation of 24.7 mrad. It has a Bragg angle of 12.3 mrad and diffraction efficiency of 70%. This AOFS has an RF center frequency of 40 MHz and RF input impedance of 50 Ohms. It has an optical insertion loss of up to 7% and optical power capability of 25 W (full aperture). This AOFS has an active aperture height of 6 mm and optical rise time of 582 nsec (at 5 mm diameter). It requires an RF drive power of 6 W and has a parallel to base laser polarization. This AOFS supports a BNC connector and is available in a package that measures 7.5 (L) cm x 3.3 (W) cm x 3.1 (H) cm.
ADM-40: Acousto-Optic Deflector-Modulator
The ADM-40 is a high-performance Acousto-Optic Deflector that operates at a wavelength of 440 nm - 700 nm. It has a center RF frequency of 40 MHz and deflection RF bandwidth of 20 MHz. This acousto-optic deflector has an optical frequency shift range of 30 MHz - 50 MHz and a diffraction efficiency of 85%. It has a beam separation of 6.5 mrad and an angular deflection of 3.2 mrad (at 633 nm). This acousto-optic deflector has a time-bandwidth product of 100 (full aperture) and an intensity modulation bandwidth of 2.9 MHz (for 1 mm beam diameter) & 4.5 MHz (for 0.65 mm beam diameter). The ADM-40 has an active optical aperture of 2 mm x 20 mm, access time of 252 nsec/mm beam width, and optical rise time of 162 nsec/mm optical beam width. This acousto-optic deflector has a static optical insertion loss of 2 % and an RF drive power of 2 W (at 633 nm). It has an RF impedance of 50 ohms and supports a BNC RF connector. This acousto-optic deflector uses dense flint glass acousto-optic material and is available in a package that measures 74.6 (D) mm x 22.4 (H) mm x 62.5 (W) mm.
FCM-40.8E6CA: Fiber-Pigtailed Acousto-Optic Modulator
Built on IntraAction’s robust FCM series designed for precision fiber-based applications, the FCM-40.8E6CA is an Acousto-Optic Modulator that operates at a wavelength of 1.3 µm. It has an AMTIR-1 chalcogenide glass material with an RF frequency of 40 MHz. This AOM has an RF drive power of 500 mW and insertion loss of less than 1 dB. It has an extinction ratio of 7 dB and a modulation bandwidth of 7.5 MHz (at -3 dB). This AOM has an optical rise time of 60 ns and optical back reflection of -40 dB. It has an input impedance of 50 Ohms and a voltage standing wave ratio (VSWR) of 1.2:1. This AOM uses a single-mode fiber with an FC-PC connector and is ideal for intensity modulation and optical frequency shifting applications.
AQS-275A1A: Acousto-Optic Q-Switch
The AQS-275A1A is a high-performance, Fused Silica Acousto-Optic Q-Switch (AOQS) that operates at a wavelength of 1.06 µm. It has a center frequency of 24 MHz & 27.12 MHz and beam separation of 4.3 mrad & 4.8 mrad. This AOQS has an active aperture of 5 mm x 12 mm and a loss efficiency of 40%. It has an optical rise time of 110 nsec/mm optical beam diameter and anti-reflection coating with a reflectance of up to 0.05%. This AOQS has an optical power capability of 500 MW/cm2 and a static optical insertion loss of 0.3%. It has an optimum polarization perpendicular to the mounting surface and input impedance/VSWR of 50 Ohms/1.25. This water-cooled AOQS supports a BNC connector and requires an RF drive power of 12 W or 50 W.
With its diverse portfolio of acousto-optic devices - including mode lockers, frequency shifters, deflectors, modulators, and Q-switches - IntraAction continues to set benchmarks in laser beam control, modulation, and synchronization. Each solution is engineered for precision, stability, and adaptability, supporting critical applications across telecommunications, spectroscopy, research, material processing, and advanced photonics. By combining decades of expertise with cutting-edge engineering, IntraAction delivers reliable components that empower scientists, engineers, and system designers to achieve new levels of performance in next-generation optical systems.
Click here to learn more about frequency shifters.
