On 7/30/19 1:16 PM, RichD wrote:
I'm not an optician, but occasionally drop in to optics
seminars. Something strikes me as odd, time and again.
When presenting their lab bench experiments, they seldom
mention errors or approximations, Every beam splitter
is exactly 50-50, every mirror is exactly 30*, etc.
In electric circuits, error and noise are inherent,
cannot be neglected. Is it really possible to play this way,
in an optics lab?
--
Rich
Depends. There are a lot of poorly-controlled variables in an optical
system, due especially to etalon fringes, and things like beam splitting
ratios depend on angles of incidence, polarization, and so on.
There aren't a lot of 1% tolerances in optics.
Cheers
Phil Hobbs
--
Dr Philip C D Hobbs
Principal Consultant
ElectroOptical Innovations LLC / Hobbs ElectroOptics
Optics, Electro-optics, Photonics, Analog Electronics
Briarcliff Manor NY 10510
http://electrooptical.net
http://hobbs-eo.com
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