Compact, Affordable Femtosecond Laser Introduced

Femto is the new nano, in the laser world at least. We recently profiled Rofin’s incorporation of a femtosecond laser source from Raydiance in its StarCut Tube Femto system. Now, High Q Laser enters the fray with its compact and affordable femtoTRAIN Ti:Sapphire.

The 53-x-20-cm laser measures 7.5 cm high and produces light pulses in durations <100 femtoseconds (fs). It achieves repetition rates of 73 MHz and an average power up to 400 mW. The unit is available at fixed-centre wavelengths of 790, 800, 810, 850 or 870 nm. The laser can also be optionally operated at its second harmonic wavelength.

The femtoTRAIN Ti:Sapphire incorporates an fs-resonator and pump laser within the compact monolithic housing. No external pump laser is needed. A semiconductor saturable absorber mirror (SESAM) ensures passive and self-starting mode locking, offering a robust and stable system. Compared with KL mode locking, saturable absorber mode locking produces a clean pulse train with >50 dB side band suppression, according to the company.

The femtosecond laser source is suited for nanostructuring and microscopy applications. Additionally, it can be used for low-noise THz generation because of its clean pulse train. Target customers include scientists and researchers as well as integrators in the industrial field.

Tags: femtosecond laser, femtotrain Ti:Sapphire, High Q Laser