The FemtoLux green from EKSPLA is a Femtosecond Green Fiber Laser that provides perfectly linearly polarized light with polarization extinction ratio >1000:1. This allows the generation of second harmonic with great efficiency better than 50% and excellent spatial beam and temporal pulse parameters. The fiber-based front-end allows multiple pulse train control functions like a wide range of operating pulse repetition rates, individual pulse gating up to 10 MHz, burst mode with active burst envelope shaping, real-time pulse amplitude control. Pulse duration can also be automatically tuned from 300 fs up to 5 ps. It provides more than 1.5 W average power at 515 nm and it’s reasonably high wall plug efficiency as well as smart heat management makes laser head passively cooled with only 60 W of heat dissipations, when operating at full power. This laser is ideal for marking and structuring, micromachining of brittle materials, photopolymerization and biological imaging applications.