HP 5518A Interferometry Laser head

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A look at a HP(/Agilent/Keysight) Interferometry laser head, a partial teardown and some info on interferometry applications and operation of Zeeman split lasers.

Links to relevant sections of Sam's Laser FAQ

Sam's Laser FAQ:

General Overview of HP Interferometry Lasers:

HP/Agilent Laser Principles of Operation:

Explanation of Axial Zeeman HeNe Laser Behavior

PIC32 based measurement display:

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This was a really interesting and simple explanation of how interferometer systems work.

Spirit

Sam's laser faq is a beast of a website!

Tadesan

that laser was pretty cool, also the 60fps video looks nice, not many people film with that yet but it makes your video look so much nicer.

i may upgrade to 60fps, not sure though.

RinoaL

Fine video, about LASER. Lovely cat!!

SpencerX

It makes sense that the length is very important otherwise the light would bounce out of phase.

DantalionNl

I wonder if cats could be used in laser interferometry, they seem to be able to detect lasers propagating through space even when the beam is not visible.

NickMoore

I liked how the cat couldn't wait for you to get the cover off, so it could see where the laser beam was hiding. I think your cat communicates using FSK :-) How is the high speed camera?

Coolkeys

I can't decide if those Window names are a joke or not. VancouFur? BC Bronies NSFW?

teridon

How much was the licence for the Easy Paint Tool?

douro

That's a talkative cat.. mine is practically mute... right on subject

hellwispLV

LOL I love how they put a safety switch on a laser with less power than your typical $5 laser pointer... Protection from what?

Doompro

Be careful, the laser beam is right at your cats eyes hight.

You should not allow her to sit there. She cannot protect herself. Since it's a cont. running laser, she can seek it out ad look directly into it.

Interesting video, otherwise.

lukasplatz

5:55
nice tab "BC Bronies NSFW:"
never forget
skype is also tesla500.

LynxBoiYiff

Use it to control a grating ruling engine. Scientific American Amateur Scientist did this I think.

KallePihlajasaari

HP 5518A Interferometry Laser head

HP 5518A Interferometry Laser head

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