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Just run the output of the C315 into the beam splitter of your choice - glass plate, polarizing cube, or whatever. Then align the two outputs of the beam splitter into your reference and object fibers. A multimode fiber is very easy to align.

Hi John,

I have a 315m-100 so probably should be ok with a couple of meters multimode but never tried it. I will give it a go :)
Do you use inline beam splitters for your ratios or come out to a normal splitter? The inline's look nice for a setup.

Thank you for the advice
Grayham

I wasted money on single mode fibers. They don't work. Nice thick, 1 mm, multimode fibers work fine if the laser has enough coherence. Toslink cables are cheap and easy to find. Use any ordinary beam splitter to launch into the fibers.

I have been looking at fibre optics as single mode cables are quite cheap these days.
I was looking at the beam splitter cables 1x2, 1x4 etc and wondering what to use.

The commercial cables all seem to be for the infrared range. Could you tell me if these are any good for splitting 532nm please or do i need to buy specific cables?

Many Thanks
Grayham

[quote="John Klayer"]Yes, with enough coherence length, multimode fibers work well for the reference beam. I wish more holographers would give it a try.[/quote]
I love using a fiber lens on color holography, it make the beam mixing so easy and very clean, and even with the hene I get a good coherence as long as the beams go threw the center of the lens, I have 2 fiber lens one small and one twice as big..the bigger one the fibers are really fine that you can't see the fibers , the beam size I use is 1 cm

Yes, with enough coherence length, multimode fibers work well for the reference beam. I wish more holographers would give it a try.

John Klayer love your idea and use of a fiberoptic as a refrence beam, so simple yet profound. I have found in color holography reflections (single beam) this idea is very useful for even lighting and mixing of the 2 or 3 beams. I use a fiber lens as a mixer and maintain about 4" depth. I have also used it in a transmission holograms and got fair results. Im so glad that they talked about your setup in the last "Practial Holography" im finding out that ther is ways to getaround the limitation in our setups :D

Yes I so hope so, facebook is not the best place to exchange Ideas

Everyone was being really quiet. Maybe that is beginning to change, now. :)

Gee Danny! I didn't know you left the Forum. I thought you were just being real quiet. Sure, we want you here and hear you.