HighPower Fibers (Visible Spectrum)

:cat:
Looking for high power >4w 50x125 micron visible spectrum low loss fiber. Attachment 47654

Have to fix old Zeiss retinal surgery Argon setup with broken delivery fiber. Attachment 47655
Have tried splicing but outer core too hard to strip and fiber just breaks (again!)! Attachment 47653
Anyone know where I can get direct replacement ? :question:
I have heard somewhere that outer core can be "softened" to make it easy to strip but can't remember where! Attachment 47656
Any suggestions Attachment 47657

Cheers :)

... I'm 'cleaving' the broken 0.1mm-fibers of 975nm-pump-diodes with output powers of 9Watts or 25 Watts - it's as simple as scarify(?) the fiber with a super sharp blade (extracting them from multi-blade shavers) and then snap the fiber ... if it's not even/clean enough, then I'll repeat this again ...

Ping me, if you'll want a piece of the 0.1mm-975nm-fiber or from the 1070nm-fiberlaser-fiber for testing ...

Viktor

Thorlabs makes nice high power fibers on demand. So does Precision Projection Systems in Ceritos, Ca.

Who made the Ophthalmic System and What Model? my medical repair friend may have a used or new fiber in stock...

Steve

I have a big stash of 50, 100 and 200 micron PPS fiber leftover from the '80's if you think a piece of that would work for you? Is PPS still in business? A butane lighter was always a part of my repair kit for removing the cladding. I would light it on fire long enough to soften the cladding, then blow out the flame before the heat could damage the fiber. There may have been a better way (precision strippers) but this worked for me.

Quote:

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Originally Posted by mixedgas

....Who made the Ophthalmic System and What Model? my medical repair friend may have a used or new fiber in stock...Steve

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:cat:
Visulas Argon II
Serial Number: 268328 Argon11 306733-9902
230vac 50/60Hz 6kva
lP 21
BAUAR TZULA SSUNG 01/M-194/91
Laser 476,5nm - 529nm 5w
DIODE 670nm 10mw = CW
Replacement fiber would be ideal :D.......but Carl Zeiss in Germany do not have any (old model = no stock)Attachment 47692

Attachment 47693 @ Photonbeam "light it on fire long enough to soften the cladding, then blow out the flame before the heat could damage the fiber. There may have been a better way (precision strippers) but this worked for me."

I will definitely try this since "precision strippers" just break the fiber! >:)
Attachment 47691
Cheers :)

Message passed to my medical friend. I'll call him tomorrow for follow up...

Steve

:cat:
........................Attachment 47719
Cheers:)

:cat:

Quote:

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Originally Posted by mixedgas

Message passed to my medical friend. I'll call him tomorrow for follow up... Steve

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Bumpety-bump! Attachment 47761

Cheers :)

Try contacting Zeiss in the UK

509 Coldhams Lane
Cambride
CB1 3JS

Tel: 01223 401450

Email: customercare@zeiss.co.uk

That's where we send all our Zeiss Ophthalmic stuff for repair and servicing. I figure it's worth asking the question, but don't expect it to come cheap ;)

Quote:

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Originally Posted by Jem

Try contacting Zeiss in the UK)

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:cat:
Hi Jem,
It's been a long while.....*vigil...thanks for pointer, but I have already been down that route, got referred to Germany...10 emails later, sorry no stock of "old fibres" ... maybe a distributor somewhere has one.!
Really nice people involved but no light at the end of the tunnel.:(

Zeiss as a company is only interested in new diode systems !:eyeroll:

Hoping for a long distance miracle. ( :fingers-crossed:
Maybe someone salvaging/scavenging bits from busted systems etc.:cool:

Cheers :)

Quote:

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Originally Posted by catalanjo

It's been a long while.....

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Indeed it has, I hope you're keeping well :). I've become more of a lurker here these days. I do check in and look at the posts every couple of days, but I don't really feel there is much I can contribute. If something catches my eye i'll pop my head up and chime in ;)

Yes, Zeiss are a strange company to deal with. I have a visual field analyser with them at the moment. It got accidentally thrown in a skip whilst having a clear out, it's not looking at all happy. I wasn't happy either as it's a £10/k piece of kit, or should I say it WAS a £10/k piece of kit, it's now a piece of worthless junk unless they can repair it. Hey Ho, such is life :rolleyes:

Cheers

Jem

:cat:
Yeah I'm OK, just older ...and grumpier ! Attachment 47770 ... and trying to liven up the threads a bit with Aaron's smileys! Attachment 47771
@ "accidentally thrown in a skip" .........Attachment 47769........... what a bummer!
Attachment 47767Have you tried posting your "visual field analyser" problem here on PL.....seems there is still a fairly large concentration of grey matter parked in the wings around here!
Attachment 47768
Cheers :)

Quote:

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Originally Posted by catalanjo

:cat:
Yeah I'm OK, just older ...and grumpier ! Attachment 47770 ... and trying to liven up the threads a bit with Aaron's smileys! Attachment 47771
@ "accidentally thrown in a skip" .........Attachment 47769........... what a bummer!
Attachment 47767Have you tried posting your "visual field analyser" problem here on PL.....seems there is still a fairly large concentration of grey matter parked in the wings around here!
Attachment 47768
Cheers :)

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Lol, i'm afraid this one's beyond the combined skill set of even PL. New case, new printer, new screen, new circuit board, new ribbon cables... I'm sure you get the picture.

Basically we hired a couple of guys to clear out a large storeroom. We thought we'd sorted through the gear and removed anything worthwhile. Sadly, this unit was missed during the initial search. I can't really blame the guys as they were just hired muscle and wouldn't have a clue what they were throwing away. Once I realised it was missing the next day I rang the skip company to ask if they'd come across any pieces of gear (gave a description). They had a search and found it on a pile of electronics stuff such as old computers etc. Problem is that the guy who removed it from the skip for recycling decided to yank it all apart, ripping the cover off and destroying other bits in the process. As I said before... hey Ho :(.

I hope you manage to get sorted out with a fiber ;)

Possible busted system scavenge arranged. Cross your fingers folks, my medical friend had a competitor that does Zeiss, who knew a guy who sold used widgets, who might have one next week on trade-in.. And not cheap either....

Only on the internet...

Steve

:cat:
Attachment 47879
Just praying that widget is right size and shape! Attachment 47880
:dont-know: Still haven't broken the $news$ to client ! Attachment 47881
*vigil But there is clearly a glimmer Attachment 47883 at the end of tunnel :D
Attachment 47882
Cheers :)