Multi-Pass Amplifiers
BriteLight™ Lasers
As is well known in the design of lasers, an amplifier can have either a high gain with poor energy extraction or a low gain with high energy extraction. A common way to solve this problem is to use multi-pass amplification, which can yield high gain and good energy extraction, thereby increasing the overall efficiency of the system. Even though the benefits from using multi-pass amplification are straightforward in theory, implementing them in a system are not. The more elements that are being added and the more passes a pulse makes through the amplifier chain the more careful the design needs to control for de-polarization effects and parasitic oscillations. The BriteLight amplifier (and pre-amplifier) uses four passes through each head, which achieves the desired combination of having high gain and, at the same time, high energy extraction. This arrangement also allows the BriteLight amplifier to deliver very high pulse energies at high repetition rates (high thermal load conditions) with great efficiency.
Optical Layout of the BriteLight Laser |
C: Compensating Optics |
Request More BriteLight™ Information
