A high-energy thulium-doped all-fiber soliton laser passively mode-locked by nonlinear polarization rotation (NPR) technology is presented, generating 350 fs pulses with spectral width of 11.5 nm at ...

A ball bearing linear stage in high vacuum is presented. Comparing with other vacuum compatible bearing this kind of stage shows simpler design, high stiffness and lower cost which is applicable in ...

In order to reduce overall fuel consumption, or partially substitute a “valuable” fuel with a poor one, in electric power plant boilers, oxygen enrichment of combustion air can be very effective.