| abstract |
The utility model discloses semiconductor exocoel mode-locked lasers：It is combined and is connected and composed by the middle INFRARED QUANTUM CASCADE LASERS (1) of one end full impregnated one end half-reflection and half-transmission, plano-convex collimating lens (2), middle echelette diffraction grating (3), plano-convex collimating lens (4), Cadmium arsenide's film saturable absorber (5) and golden mirror (6) successively；Cadmium arsenide's plastics thickness control of mode locking pulse output is realized in 1 μm of 30nm, which covers 26 microns of infrared region.The utility model can be directly realized by the mode locking pulse output of ultrafast, high stable, tunable wave length in middle infrared band. |