Dear Andreas! We also initially had the plan to buy an Enterprise for our MoFlo to get UV and 488 and 514 in different combinations. However, we ended up with two Innova 90C+ 4 Watt. They are expensive, need a lot of water and power, but once running I found them to be reliable and very flexible workhorses. The major advantages are: - no noise from competition between visible and UV lines. - with two lasers, both can be switched to light regulation for the line you really need. - Even for the regulated line, the noise is considerably lower for the Innova 90 (0.2% rms) than for the Enterprise (1.0%), according to Coherent's information. - Flexibility: You can get multiline visible, 488, 514, and UV out of each of the two lasers by exchanging the high (and for some cases) output mirror. - Our subjective impression while testing different machines has been, that the "Search and peak" function of the Enterprise is a nice thing. However, if it doesn't work (and this happened during a demo) you have to call Coherent. On the other hand, the manual optimization of the Innova 90 only takes a few seconds and not very much can go wrong here. In case you have plenty of money you might consider buying an Innova 300 for the UV Laser. As far as I understood, this is basically an Innova 90 with "PowerTrack", a function to keep output constant over longer periods of time. Our UV Laser decides from time to time to wander off, which definitely affects measurements, even when the output power is not affected. I don't know whether other users also encountered this problem? Best Regards Stefan P.S.: The Coherent lasers run on American high voltage, which is 208V. To get that out of a European 400V line, you have to use a transformator, which at this size is a quite efficient heater for the lab. >
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