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Technology Stocks : Silicon Valley Group
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To: FJB who wrote (933)9/8/1997 9:59:00 PM
From: James Word   of 2946
 
Robert - Re:"The greatest difference between the two products is something called spectral bandwith. Would anyone care to explain what that means? "

Spectral bandwidth is basically the frequency (or wavelength) range
of the output. Very narrow bandwidths are required for use in
refractive optical systems to limit chromatic (wavelength related) aberrations. Reflective (and Cadiotropic) systems don't
have the C.A. problems of all refractive systems.

I don't know what technique they are using in tighening the bandwidth
of their lasers. If they are using a simple filter then that may
reduce the output power, lowering the throughput of the overall system.

James Word
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