HIGHLY ENERGETIC SUB-250 PS ALL-POLARIZATION MAINTAINING FIBER LASER FOR miniSLR® APPLICATION

Kurzfassung

We hereby present the specific laser architecture that has been developed to comply with the miniSLR® application. In particular, the specific pulse duration below 500 ps associated to a narrow spectral bandwidth of less than 1 nm coupled to a pulse energy of more than 100µJ with a high repetition rate (> 100 kHz) in a compact and air-cooled packaging were the global bottleneck to overcome. After a quick introduction to miniSLR® application and associated laser requirements, the Master Oscillator Power Amplifier (MOPA) architecture based on all polarization maintaining (PM)fibers is presented in detail and motivated. Such architecture led to the long-term demonstration of a sub 250ps, 100µJ, 100kHz laser integrated in a compact and robust package. The perspective and limits of the developed solution are discussed in view of the SLR application.