What is Co: Spinel
Cobalt spinel , chemical formula Co: MgAl2O4, spinel is a hard, secure crystal that brightens well. Cobalt quickly changes magnesium in spinel without the need for added charge-compensating ions. Passive Q-switches or saturable absorbers produce high-power laser pulses without using electro-optic Q-switches , decreasing bundle dimension and getting rid of high-voltage power products. Co: Spinel has actually been shown to be an extremely effective passive Q-switch for giving off 1.2 µm - 1.6 µm lasers. Co2+ activated MgAl2O4 (Co: MALO, Co: back) can be used as a medium for easy Q-switching of lasers operating in the 1.3 - 1.6 µm spectral array. Examples are 1.32 µm and 1.44 µm Nd: YAG lasers , 1.31 µm iodine lasers, and especially 1.54 µm erbium glass lasers. The completely high absorption cross-section of the Co2+ ion and the practical absence of excited-state absorption make this material a very effective passive Q-switch (without the need for intracavity) for various sorts of erbiu...