Assertion: green laser | /r/HasProperty | commercial
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text: CW Nd:YAG head in need of a new arc lamp (and a small miracle which will probably never happen), several DPSS green lasers (both commercial and home-built), and external mirror HeNe lasers using tubes with one and two Brewster windows mounted in home-built resonators (including a nifty one-Brewster tube that does green!).