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Mode Lockers (AOML)

Acousto-optics for laser beam mode locking by G&H

Acousto-optic mode lockers (AOML) modulate the loss within a laser cavity at its resonant frequency, effectively “locking” the phase of the longitudinal modes to generate very narrow laser pulses of high intensity.

Our mode lockers for Nd:YAG, Nd:YLF, Ti:Sapphire and Argon Ion lasers can modulate at up to 200 MHz, yielding near-theoretical mode locked laser pulse widths. We offer antireflection (AR) coated and Brewster angle options. We design customized one-off mode lockers for demanding scientific and OEM applications.

Acousto-Optics

G&H (formerly Gooch & Housego) has been a leader in acousto-optic (AO) device design and manufacturing for over 35 years, bringing together some of the best minds and technologies in the field to create a comprehensive line of high-quality products backed by premier service and reliability. We hold our multiple worldwide manufacturing sites to exacting standards, from the in-house growth of our own tellurium dioxide (TeO2) to polishing, antireflection coating, fabrication and testing of devices. The result is unmatched optical power handling, and optical performance delivered consistently over time and in volume.

Every acousto-optic device is affected by trade-offs between speed, aperture size, power handling, and durability. While we cannot change the laws of physics, we can help to find the optimum balance between competing performance parameters. Considering the more subtle aspects of each customer’s specific application, we work to identify the ideal device and RF driver.

Innovative Acousto-Optic Device Designs

Innovative acousto-optic device designs stretch minimize undesirable effects of crosstalk, light leakage, and beam distortion. Our Fiber-Q® line of fiber-coupled acousto-optic modulators received the prestigious Queen’s Award for Enterprise: Innovation in 2016 and the Institute of Physics (IOP) Award for Innovation in 2014. While our multi-channel modulators lead the industry with up to 48 channels of independent and simultaneous modulation.

Maximise Performance

We design our RF drivers with state-of-the-art voltage control oscillators (VCOs) and direct digital synthesizers (DDSs). This temporal control and synchronization maximize the performance of our AO devices for a wide variety of applications.

Standard Acousto-Optic Devices, Custom one-off or Volume OEM Solutions

Whether we are matching a customer’s application to one of our many standard acousto-optic devices and drivers or creating a custom one-off or volume OEM solution, we are committed to providing responsive service. Our support team strives to respond quickly to our customers, solve problems efficiently and effectively, and deliver product that exceeds expectations for performance, reliability and consistency.

Space Qualified

Many of our photonic solutions are qualified for space or are currently deployed. We understand how to develop, design, and manufacture for extremes of temperatures, radiation, shock, and vibration. We perform extensive qualification testing during engineering builds and flight hardware qualification.

ITAR Compliant

We have extensive capabilities and experience supporting and managing the unique needs of government sponsored development programs. US customers can work with and source directly from a US-based supplier who can leverage capabilities and products across all worldwide divisions of G&H.

From Prototypes to Full-Scale Production

At G&H, we have the ability to produce single prototypes and the manufacturing capacity to make fiber optic components, assemblies and modules by the thousands. We can support your needs from commercial off-the-shelf products to customized complex solutions to meet your most demanding fiber optic requirements.

ProductTypeWavelengthOperating FrequencyActive ApertureWindow TypeOptical Material
12041-3-BR-TE AOMLIR700 – 1100 nm41 MHz2 mmBrewsterFused Silica
12080-3-TE AOMLIR1064 nm80 MHz3 mmAR coatedFused Silica
12038-3-TE AOMLIR1064 nm38 MHz3 mmAR coatedFused Silica
12041-3-TE AOMLIR1064 nm41 MHz3 mmAR coatedFused Silica
12050-3-TE AOMLIR1064 nm50 MHz3 mmAR coatedFused Silica
12038-3-BR-TE AOMLIR700 – 1100 nm38 MHz2 mmBrewsterFused Silica
12050-3-BR-TE AOMLIR700 – 1100 nm50 MHz2 mmBrewsterFused Silica
Applications of mode lockers

Femtosecond micromachining, fs/ps lasers (Nd:YAG, Nd:YLF, Ti:Sapphire, Argon ion), LIDAR, multiphoton microscopy, nonlinear optics, optical data storage, optical heterodyne detection for spectroscopy, telecommunications

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