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atomd's latest activity
A
atomd
replied to the thread
ECDL setup with custom controller
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Last time I wrote introduction post about optics in the ECDL. Now let's talk about custom driver designed for it. The driver has to do...
Apr 24, 2024
A
atomd
replied to the thread
ECDL setup with custom controller
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FSR is 1.5GHz (as you can see I put round trip ~250ps) but to analyze pulse evolution in laser cavity you need much higher bandwidth...
Apr 20, 2024
A
atomd
replied to the thread
808nm optics. collimators, cylindrical lenses
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Anamorphic prism pair or cylindrical lens pair with f=+40 i f=-4 (or something close to make ~x10 telescope in reasonable space)...
Apr 19, 2024
A
atomd
replied to the thread
808nm optics. collimators, cylindrical lenses
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LD + collimator is like $40. 20% loss forces me to add like 2 more diodes to the setup and align optics better to squize into the cavity
Apr 18, 2024
A
atomd
posted the thread
808nm optics. collimators, cylindrical lenses
in
Buy, Sell, & Trade
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Hi, I'm basically trying to collimate and shape a 808nm beam to pump Nd:YAG, but all quotes for optics I got were outrageous.
Apr 18, 2024
A
atomd
replied to the thread
525nm>589nm Dye laser cell Build
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How exactly are the coherent dye lasers called? One more hint, chloroform and quartz have almost exactly the same refractive index.
Apr 14, 2024
A
atomd
replied to the thread
Path to orange - Advice?
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It's not that hard. Question is only about MOC
Apr 14, 2024
A
atomd
replied to the thread
525nm>589nm Dye laser cell Build
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The only CW dye laser I ever saw without dye circulation used a single mode diode with very high Q resonator to overcome a really...
Apr 14, 2024
A
atomd
replied to the thread
Path to orange - Advice?
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I actually have a monolithic design that may work but requires so much customization that optogama already said 1k pcs minimum. When...
Apr 14, 2024
A
atomd
replied to the thread
Low voltage, HC driver for a coherent FAP module?
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well clearly suipply voltage selection refers to driver's heat output, not LD heat output.
Apr 11, 2024
A
atomd
replied to the thread
Low voltage, HC driver for a coherent FAP module?
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No clue about CPU but modern GPU converters are natively CMC with feedforward from clock scaling logic. Otherwise inductor current ramps...
Apr 11, 2024
A
atomd
replied to the thread
Low voltage, HC driver for a coherent FAP module?
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Coherent doesn't agree. Original driver is very much voltage output. They just control temperature to 0.1K.
Apr 11, 2024
A
atomd
replied to the thread
Low voltage, HC driver for a coherent FAP module?
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Linear stage is just wasteful. I'm thinking about a simple, polyphase, current mode converter. Current measurement is already used for...
Apr 11, 2024
A
atomd
replied to the thread
UV Lasers
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They don't. That's actually quite cheap for laser system. Only terrible beam quality diode lasers are cheaper (when available)
Apr 10, 2024
A
atomd
replied to the thread
Low voltage, HC driver for a coherent FAP module?
.
I'm slowly designing a switching power supply for my FAP usage. It's polyphase buck converter downconverting 12V input. It'll be a while...
Apr 10, 2024
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