> Well I'd certainly try this first with a stock inventory part before > spending unnecessary money on the expensive vendor optic...
I'd find the mux spec before puting something live that may only be on the edge of staying live > Vendors do give different tolerances for what the actual wavelength > transmitted will be and this will fluctuate slightly due to the > manufacturing process Yes, that's the wide range I quoted, devices can be anywhere within that (I've measured them), there's no reason for non cwdm be close to 1310 > optic sold as cwdm will have been checked against a tighter limit but I'd > be shocked if you're buying LR that isn't almost exactly 1310. It may be some manufacturers use the same lasers for both parts but usually the cwdm have a laser designed for stability, which costs more (DFB vs Fabry-Perot) brandon
