Purchasing Advisor for Autocorrelators

YOUR KEY to innovation and success

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B1.543)!

TUNDRA®, by UltraFast Innovations (UFI®), is a third-order autocorrelator, which serves as a highly sensitive diagnostic tool for laser pulse contrast measurements. Using third-harmonic generation, TUNDRA can distinguish between pre- and post-pulses. Its dynamic range reaches up to 14 orders of magnitude, sufficient for detecting even the tiniest parasitic pre- and post-pulses. The scan range is up to 3.8 ns, and pulse durations from <20 fs to 3 ps can be measured. It is available for 800 nm and 1030 nm but other wavelengths can be provided upon request.

TUNDRA is a fully automated device, serving as an invaluable tool for state-of-the-art characterization of ultrashort laser pulses. Its designed ensures that ghost pre/post pulses are avoided.

The Future Depends on Optics

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B1.416)!

Our compact ultrafast autocorrelator is used to characterize ultrafast laser pulses originating from Ti:sapphire and Yb:doped lasers. Featuring a built-in two-photon absorption (TPA) detector, this autocorrelator is ideal for measuring ultrafast femtosecond and picosecond laser pulses at wavelengths from 700 to 1100 nm. The highly sensitive TPA detector allows for measurements of ultrafast laser pulses with high sensitivity by eliminating the need for angle tuning of the SHG nonlinear crystal.

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B2.410)!

APE autocorrelators are used to measure the pulse duration of femtosecond and picosecond laser systems. The technology is based on either second harmonic generation (SHG) detection or two-photon absorption (TPA) detection principle.

APE autocorrelator models:

• pulseCheck: multitalent for any task
• Mini TPA: compact and tuning-free
• Mini PD: routine tasks with a fixed wavelength range
• Carpe: first choice for multiphoton microscopy

See us at LASER World of Photonics 2025 in Munich, June 24–27 (booth B2.403, A1.530)!

The FSAC benchtop interferometric autocorrelator manufactured by Thorlabs is designed to characterize ultrafast pulse durations from 15 – 1,000 fs in the 650 – 1100 nm range. This autocorrelator is for use with femtosecond lasers and complements our ultrafast family of lasers, amplifiers, and specialized optics, including nonlinear crystals, chirped mirrors, low GDD mirrors/beamsplitters, and dispersion compensating fiber.

Femto Easy offers two different types of very compact and handy autocorrelators for ultrashort pulse characterization:

• The ROC autocorrelator is a single-shot autocorrelator, thus it needs only a single pulse to measure its duration. It is very compact and extremely easy to use. It covers a wide range of pulse energies from a few hundred picojoules to a few millijoules, and durations from 5 fs to 10 ps. Also based on a single-shot architecture, the µ-ROC is the most compact autocorrelator ever built.
• The MS-ROC autocorrelator is a multi-shot autocorrelator. It uses a particularly fast optical delay line to scan the delay, minimizing the measurement time. It can measure pulses with energies as low as 50 pJ, and with its fine-scan mode for durations even below 50 fs.