Thanks all,
The main reason for choosing glass is the fact that its thermal structural stability (expansion/contraction) is 4 times higher than that of aluminum. With multi diode setups this can/will quickly become an issue. This also gives the perfect platform for realizing a tension free build; components under tension also react to temperature changes (minimum of screws/tension involved here with optical components). The module will be hermetically sealed and temperature regulation will be 2 stage, regulation of the diode temperatures and regulation of the module internal ambient temperature via TEC heat/cool exchange to the outside. I’m mainly looking for beam convergence stability in any environment, I’m not a fan of continuously adjusting beam convergence and tests have been real promising so far.
cheers
Frank



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....and armed only with his trusty 21 Zorgawatt KTiOPO4...
