The mode coupling device is useful for flattening the gain of the optical amplifier.
The mode coupling means (15) is used to couple the orthogonal light sources (x,y; LP'01,LP'11) to each other.
The invention relates to a short-pulse laser device (11) with a preferably passive mode coupling.
An optomechanical device, based on mode coupling, and methods for its use.
The laser-amplifying fibber (13), the sensor fibber (14) and the mode coupling means (15) are arranged between the end reflectors (11,12).
The mode-coupled laser (10) produces light pulses, which produce a photocurrent in the photodiode (14).
An electronic circuit contains a flipflop circuit (13), a switch (12), a photodiode (14) and a mode-coupled laser (10).
The invention is characterized in that the de-excitation light source (15) is a mode-coupled glass laser (13) having a line width of the de-excitation light (7) of less than 2 nm.
Only complicated, mode-coupled laser systems which can achieve a pulse duration below 10 ps have been known until now from the prior art.
The movement of the instruments in tandem back towards the entry guide may also occur through coupled control modes while the entry guide is held in a fixed position and orientation.
The systems known in the prior art, mode-coupled solid-state lasers, make it possible to generate laser pulses in the sub 10 ps range only with complicated and alignment-sensitive free-beam structures.