Ultrafast carbon nanotube saturable absorbers for solid-state laser mode-locking near 1㎛

摘要

Ultrafast carbon nanotube saturable absorber for solid state laser mode lock according to the present invention, by mixing the single-wall carbon nanotubes (SWCNT) produced by the electric discharge method to dichlorobenzene (DCB) to form a carbon nanotube solution, After the carbon nanotube solution is mixed with polymethyl methacrylate (PMMA) to form a SWCNT / PMMA composite, the SWCNT / PMMA composite is formed by forming a thin film on the substrate through a spin coating method. Transmissive or reflective SWCNT-SA according to the present invention manufactured in a very easy and inexpensive process instead of SESAM, which has been utilized for ultra-short pulse emission to date, is applied to Yb: KLu (WO ₄ ) ₂ solid state laser as an example. The solid-state laser was locked in auto-oscillation mode in the 1µm band and operated at a repetition rate of 89 MHz. In this case, the emitted pulse has a pulse width of 170 fs.;Single Wall Carbon Nanotube Saturated Absorber, Solid State Laser, Electro-discharge Carbon Nanotube