few-cycle
few-cycle Inc.1650 Boul. Lionel-Boulet
J3X 1P7 Varennes, Quebec
Canada
Tel.: | +1 514 228 6865 |
E-mail: | |
Website: | ![]() |
Contact page: | https://www.few-cycle.com/contact |
Company Description
We develop cutting edge femtosecond devices including optical parametric amplifiers with record-quantum conversion efficiencies >80% and hollow-core fiber pulse compressions that can reach >90% throughput at average powers beyond 100 W.

Exhibitions
See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth A2.568)!
Products
Product Category | Description |
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beam delivery systems | ![]() few-cycle offers a beam steering system with 4-axis manual control of the beam path under vacuum. Yaw, pitch, rotation and position adjustments are implemented with a highly stable flexure mount. The device supports optics with diameters up to 3”. Flange type: KF 50. Pressure down to 10−6 mbar. |
dispersive mirrors |
few-cycle offers state-of-the-art components (dispersive and non-dispersive mirrors, windows, wedges) that enable achieving and preserving the bandwidth-limited duration of few-cycle pulses with central wavelengths ranging from the visible to the near infrared. Our R & D projects pave the way to implementing dispersion management techniques for ultrashort pulses with average powers up to 200 W. |
frequency-resolved optical gating devices | ![]() The orchestra™ FROG (Frequency-Resolved Optical Gating) combines SHG (second harmonic generation) and TG (transient grating) FROG in one device with total spectral range from 200 nm to 2 μm (up to 3.4 μm optional). It comes with user-friendly software for acquisition and phase retrieval. |
hollow-core fibers | ![]() The new few-cycle flexible hollow core fiber system allows you to choose various fiber lengths and inner diameters to achieve a desired nonlinear effect. Experimentally measured transmission for multi-mJ femtosecond pulses ranges between 50% and >90%, depending on the application. The most versatile choice for laser pulse post compression: The few-cycle hollow core fiber supports input energies from 50 μJ to 100 mJ, up to 20 times compression and transmission >90% while keeping the footprint and optical path length at a minimum. |
laser optics |
few-cycle offers state-of-the-art components (dispersive and non-dispersive mirrors, windows, wedges) that enable achieving and preserving the bandwidth-limited duration of few-cycle pulses with central wavelengths ranging from the visible to the near infrared. Our R & D projects pave the way to implementing dispersion management techniques for ultrashort pulses with average powers up to 200 W. |
optical mounts | ![]() The main requirements on optical mounts are movability combined with immovability. Our screwed™ – series optical mounts and assemblies resolve this contradiction by avoiding solely spring loaded solutions to retain the adjusted position. The position remains locked by literally screwing the two moving surfaces together. |
pulse compressors | ![]() The new few-cycle flexible hollow core fiber system allows you to choose various fiber lengths and inner diameters to achieve a desired nonlinear effect. Experimentally measured transmission for multi-mJ femtosecond pulses ranges between 50% and >90%, depending on the application. The most versatile choice for laser pulse post compression: The few-cycle hollow core fiber supports input energies from 50 μJ to 100 mJ, up to 20 times compression and transmission >90% while keeping the footprint and optical path length at a minimum. |
pulse duration measurement devices | ![]() The orchestra™ FROG (Frequency-Resolved Optical Gating) combines SHG (second harmonic generation) and TG (transient grating) FROG in one device with total spectral range from 200 nm to 2 μm (up to 3.4 μm optional). It comes with user-friendly software for acquisition and phase retrieval. |
vacuum beam delivery systems | ![]() few-cycle offers a beam steering system with 4-axis manual control of the beam path under vacuum. Yaw, pitch, rotation and position adjustments are implemented with a highly stable flexure mount. The device supports optics with diameters up to 3”. Flange type: KF 50. Pressure down to 10−6 mbar. Vacube chambers enable customer-configurable beam routing under vacuum – maximally compact and maximum access. By separating the steps of optical alignment and pressure induced stress release, our design enables optical adjustment with free access to the mounts without the usual inconveniences of a vacuum chamber. |