Femtosecond laser system FemtoTune

picosecondnanosecondtunable

FemtoTune is a tunable femtosecond optical parametric amplifier designed to meet the demanding specifications of modern ultrafast science, offering features that enhance measurement efficiency, convenience, flexibility, and reliability. It is based on Ekspla’s extensive experience in developing picosecond and nanosecond tunable systems, as well as optical parametric chirped pulse amplifiers (OPCPAs) with pulse energies up to 1 joule and durations as short as 10 fs. FemtoTune delivers a compact, high-repetition-rate (up to 100 kHz) solution with sub‑50 fs pulse duration across a broad wavelength tuning range, tailored for modern ultrafast spectroscopy and imaging.

Features

• 650–950 nm & 1100–2000 nm tuning range
• Extension to UV–VIS (330–470 nm & 550–650 nm)
• Extension to Mid-IR (2300–10,000 nm) gapless tuning
• < 50 fs pulse duration featuring integrated dispersion compensation
• Single shot–100 kHz repetition rate
• Scan of full wavelength range in a few seconds and fast wavelength sweep
• Pumped by reliable FemtoLux series lasers featuring dry or water cooling
• Additional narrow spectral bandwidth optically synchronised output at 1030 or at 515 nm less than 8 cm⁻¹
• Optical synchronisation with picosecond Ekspla laser sources (e.g. PL2231, PT501) with bandwidth below 3 cm⁻¹

Applications

• Ultrafast non-linear spectroscopy: Pump-probe, SFG, CARS
• Multiphoton imaging

Description
FemtoTune’s time-synchronised motor positioning enables fast and smooth wavelength tuning, allowing users to scan the full range in just a few seconds or access specific wavelengths within several tenths of a second. Continuous, gapless tuning in the mid-IR (2.5–10 µm) with a single polarisation eliminates the need to switch between signal and idler waves, resulting in faster, more stable measurements and excellent beam pointing stability. For applications requiring narrow spectral bandwidths, such as SFG or CARS, FemtoTune offers an additional narrowband channel at 1030 nm or 515 nm, providing < 8 cm⁻¹ bandwidth without the need for complex spectral narrowing techniques. Optical synchronisation with most Ekspla picosecond lasers and wavelength tunable systems allows achieving even narrower bandwidth (< 3 cm⁻¹), enabling simultaneous high temporal and spectral resolution measurements. Pumped by robust, award-winning industrial-grade FemtoLux series laser, FemtoTune offers long-term stability, hands-free operation, and minimal maintenance. FemtoTune delivers ultrashort pulses at high repetition rate, enhanced by advanced functionality, all in a compact system.

Options and Accessories

• Extension to UV–VIS: 330–470 nm & 550–650 nm
• Extension to Mid-IR: 2300–10,000 nm gapless tuning
• Additional output (simultaneously): 1030 or 515 nm

Characteristics / Technical Specifications

• Model: FemtoTune
• Tuning range: 650–950 nm & 1100–2000 nm
• Pulse energy at 800 nm: > 30 µJ
• Pulse energy at 1500 nm: > 10 µJ
• Pulse duration at 700–900, 1100–1900 nm: < 50 fs
• Long-term power stability (9 hours): < 1 %
• Pulse-to-pulse stability (10 sec): < 1 %
• Repetition rate: Single shot–100 kHz
• Pump laser model: FemtoLux series
• Mains requirements: 100–240 V AC, single phase, 50/60 Hz
• Operating ambient temperature: 18–27 °C
• Relative humidity: 10–80 % (non-condensing)
• Air contamination level: ISO 9 (room air) or better