Co2 MgAl2O4 Nonlinear Crystals Passive Q Switch For Lasers Emitting

Co: MgAl2O4 Co: spinel passive q-switch crystal for Er: glass lasers

Introduction:

Co: Spinel(Co2+:MgAl2O4) is a recently developed material, which has been proven to be a very effective passive Q-switch in lasers emitting in the range of 1,2 µm - 1,6 µm, especially suitable for the 1.54μm eye-safe Er glass laser. Passive Q-switching or saturable absorber can generate high-power laser pulses without using electro-optic Q switching, which can effectively reduce the size of the device and avoid the use of high-voltage power.

Spinel is a hard, stable crystal that can be polished to the desired index. Cobalt particles replace magnesium ions without additional charge compensation. In the 1.3μm attachment, it has a particularly high excited-state absorption cross-section (3.5×10-19cm2).

Features:

• Rarely excited absorption
• The high constant of the Q-switch
• High absorption section
• Long excited lifetime
• Evenly distributed cobalt
• Wide absorption band

Applications

• Passive Q-switch for Er: Glass lasers @1,54 µm
• Laser Ranging
• Medical Applications

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