The system is designed to destroy short-range projectiles too close for the Iron Dome system to intercept effectively. It should be good for...

The system is designed to destroy short-range projectiles too close for the Iron Dome system to intercept effectively. It should be good for drones too, taking a cue from Ukraine where they're proving to be very disruptive. Drones are moving slow enough to get adequate dwell time out of the laser. IIRC the system, which has been in development for a while, was originally designed as

I want to make a narrow pulse. This will drive an e/o modulator to be an optical "fiducial" marker in a laser system. I can use a Leo Bodnar...

I want to make a narrow pulse. This will drive an e/o modulator to be an optical "fiducial" marker in a laser system. I can use a Leo Bodnar style laser driver chip to make a fast edge, but I don't know if the chip will propagate a 100 ps wide pulse. If it won't, maybe I can feed it a step and clip the output with a shorted transmission line. Making a 16.66 ohm line is a bit clumsy on ...

Chinese researchers say their industrial resin mixture has enough heat resistance to protect ballistic missiles from laser...

Chinese researchers say their industrial resin mixture has enough heat resistance to protect ballistic missiles from laser attacks ‘BPR-1’ and other advances in protective technology are pushing the arms race in directed energy weapons to a new stage, scientist says https://www.scmp.com/news/china/science/article/3223570/could-1-dollar-chinese-adhesive-defeat-bill

Blu-ray player gathering dust? Turn it into a laser-scanning microscope ...

Blu-ray player gathering dust? Turn it into a laser-scanning microscope https://arstechnica.com/gadgets/2022/12/blu-ray-player-gathering-dust-turn-it-into-a-laser-scan ning-microscope/

-https://www.dfki.de/fileadmin/user_upload/import/8767_wasenmuller2016comparison.pdf --The Kinect v1 measures the depth with the Pattern...

-https://www.dfki.de/fileadmin/user_upload/import/8767_wasenmuller2016comparison.pdf --The Kinect v1 measures the depth with the Pattern Projection principle, where a known infrared pattern is projected into the scene and out of its distortion the depth is computed. The Kinect v2 contains a Time-of-Flight (ToF) camera and determines the depth by measuring the time emitted light takes from th...

Laser Projector Needs Hardware Hack After Software Mod 2 Comments by: Robin Kearey December 11,...

Laser Projector Needs Hardware Hack After Software Mod 2 Comments by: Robin Kearey December 11, 2022 https://hackaday.com/2022/12/11/laser-projector-needs-hardware-hack-after-software-mod/

200 Watt car mounted laser! TheBackyardScientist 5.53M subscribers 6.1M views 2 years ago Join the science discord!...

200 Watt car mounted laser! TheBackyardScientist 5.53M subscribers 6.1M views 2 years ago Join the science discord! https://discord.gg/pw5sZ3PTye Visit https://bit.ly/30eG6YG and use promo code H4MUUKFG5VZY to get 5% off when purchasing the DJI Mavic Mini or Mavic Mini Fly More Combo … 14,248 Comments https://youtu.be/WAI7Lu4UFi4

310 x 310 x 450 mm volume. I was thinking about doing an unboxing video. Dual independent head. Getting a laser too.

310 x 310 x 450 mm volume. I was thinking about doing an unboxing video. Dual independent head. Getting a laser too.

Toward high-powered telecommunication systems: https://www.sciencedaily.com/releases/2022/04/220408113955.htm 60 mW output 60 GHz modulator

Toward high-powered telecommunication systems: https://www.sciencedaily.com/releases/2022/04/220408113955.htm 60 mW output 60 GHz modulator

So I'm doing a simplified version of the differential laser noise canceller, which in the spherical cow universe looks like it does very well...

So I'm doing a simplified version of the differential laser noise canceller, which in the spherical cow universe looks like it does very well out to about 10 MHz, thanks to the amazing properties of BFP640s and some new photodiodes with reduced series resistance. (At least according to Hamamatsu.) One thing I need for this is an adjustable resistance with good bandwidth. The fastest...

Has anybody used this one? http://www.ti.com/product/lme49990 Sounds too good to be true. -- John Larkin Highland...

Has anybody used this one? http://www.ti.com/product/lme49990 Sounds too good to be true. -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology dott com http://www.highlandtechnology.com

OT: More Win7 Crap... Periodically I'm getting "Some printing features are currently unavailable", or some phrase similar to that. Like, I...

OT: More Win7 Crap... Periodically I'm getting "Some printing features are currently unavailable", or some phrase similar to that. Like, I can print to my hp Laser Jet P2015dn, but not be able to select double-sided ?? Never happened with WinXP. Any idea of the cause? ...Jim Thompson -- | James E.Thompson ...

I have some old assembly listing files that are text, paged by formfeed characters. I can't find a way to print nice listings on a modern laser...

I have some old assembly listing files that are text, paged by formfeed characters. I can't find a way to print nice listings on a modern laser printer/copier. They ignore the formfeeds or print a black box. Any ideas? Maybe I could write a program to replace the ff's with a control sequence or something?

I had cataract surgery in one eye and will do the other one soon. I have a pretty high power 400 nm laser. If I shoot it at the wall, the dot...

I had cataract surgery in one eye and will do the other one soon. I have a pretty high power 400 nm laser. If I shoot it at the wall, the dot is bright with the repaired plastic-lens eye and invisible with the one that has the cataract. My doctor explained that a cataract absorbs blue light, and that's why some old ladies color their hair bluish-white, because then it looks right to them. ...

The mounting holes on PC motherboards: are they usually connected to the PCB ground plane? -- John Larkin ...

The mounting holes on PC motherboards: are they usually connected to the PCB ground plane? -- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL d...

Cool visual patterns: https://dl.dropboxusercontent.com/u/53724080/Circuits/Oscillators/Coupled_Resonators.jpg The waveforms decay,...

Cool visual patterns: https://dl.dropboxusercontent.com/u/53724080/Circuits/Oscillators/Coupled_Resonators.jpg The waveforms decay, which must be some Spice setting. Ideal resonators wouldn't lose energy. Gear integration is much worse than trap. -- John Larkin Highland Technology, Inc picosecond timing laser drivers and controllers jlarkin att highlandtechnology...

Has anybody done this? https://dl.dropbox.com/u/53724080/Circuits/Isrc_LED.JPG -- John Larkin Highland Technology...

Has anybody done this? https://dl.dropbox.com/u/53724080/Circuits/Isrc_LED.JPG -- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links V...

Lately we're doing some small 6-layer boards with breakaway tabs for fixturing. So there can be freebie little circuits that snap off. We...

Lately we're doing some small 6-layer boards with breakaway tabs for fixturing. So there can be freebie little circuits that snap off. We use the Micrel SY88022 laser driver in a few off-label applications, and we don't know enough about it, so I hung a test circuit on an upcoming board. https://www.dropbox.com/s/xu559d7y81n4q6g/T502_SY88.jpg?raw=1 This chip is similar to the Maxim...

I'm designing a test board for a laser controller. Incoming signals, fast 5 volt pulses, will need to get routed to scopes, counters, and some...

I'm designing a test board for a laser controller. Incoming signals, fast 5 volt pulses, will need to get routed to scopes, counters, and some other stuff. It will be kind a maze of connectors and traces and probably relays; it's hard to beat a relay as a test path switch. But life would be a lot better if I could fan out some of the signals at their input connector. I want a zero-delay, ze...

So, I had this application requiring really absurd amounts of ripple rejection--it's a piezo driver in a laser wavelength locker that (for...

So, I had this application requiring really absurd amounts of ripple rejection--it's a piezo driver in a laser wavelength locker that (for historical reasons) has to run off a fairly crappy dual isolated 48V DC-DC converter. The 48V has almost a half volt of ripple at 47 kHz, and the output noise needed to be in the nanovolts. As we've discussed here before, ordinary cap multipliers ar...