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If this link works, here is my N2 Dye Laser: https://laserpointerforums.com/threads/n2-pumped-dye-laser.105001/ As for the current flashlamp dye laser, the work progresses. I believe I have resolved the metering issues with some help from Cyp. I am almost done with the Frankenstein relay that...

A mirror spinning on a motor shaft will make circles. The mirror is mounted on the end of the shaft and nearly perpendicular to it. The more off axis, the larger the angle of the cone. See "The Laser Cookbook" by Gordon McComb.

Wish I could help more. https://www.repairfaq.org/sam/laserhec.htm

I love the side positioned switch. Most off-the-shelf hosts have that awkward bottom button. The built in charge port is also fantastic... well done!

Thank you for your input. sir. I highly value your advice. Disconnecting the meter is exactly what is on the agenda this week. I have researched a variety of HV switches and decided to Frankenstein my own relay. The contact will swing open around 2". Also, I have paralleled a couple of 5401s...

I am working on the power supply for my DIY dye laser. It is a 20KV supply using a variac to control a 5KV, 30mA neon sign transformer, which feeds a 4 stage cockroft-walton multiplier. This charges a 1uF 20kv cap through a 20k resistor to about 15kv for the flashlamp. The problem is 2 part. 1)...

Post pictures on outside website and then post link here. Many people here use IMGUR. https://imgur.com/

If you do get it running and current is correct, let it run a few hours to heat up. PS: If a HeNe won't start, always suspect the power supply first. I have a power supply brick made specifically for that tube if you need a tube checked.

That tube is a 1 mW HeNe. It runs on about 1250 VDC at 4mA. It may or may not need an ignitor. At first glance, that board looks like a DC powered supply... probably 12v at about 1 amp in. Just guessing, I would bet the transistor pulses the transformer and is then sent through multiplier...

Cool project... good luck. FYI this thread is 8 years dead and did not get any responses in the first place. Maybe make a new thread and tell us about your project... pictures always welcome.

5v https://ltt.by/pdf/laser-diode-datasheets/SLD3236VF.pdf

https://www.cloudraylaser.com/search?q=beam+expander Not $450.00

If you look at the Survival Laser International home page, under documents, there are step by step instructions for assembling a variety of Hosts and modules. https://www.survivallaser.com/

I don't have the invoice anymore. 1 gram of granulated laser dye makes a whole bunch of solution. Keep in mind the price of an analytical balance. https://exciton.luxottica.com/checkout/cart/

Lab laser, dielectric mirrors. Safety googles for all present.

I have installed many of those street lights. The sensors do not respond instantly. The laser would have to be on target for some time. When the laser is off, the light would go back into start up mode. While I have never tried this experiment, I suspect that a fairly low power laser would work...

The flashlamp is filled with plain old air... so mostly nitrogen. As per Lankard's design, the cap is charged and then the lamp is rapidly evacuated til it fires. The cap is 1uF charged to about 15000v. In the past, I have experimented with a lamp backfilled with pure N2 and triggered by HV...

If you are going to set your own driver, a dummy load is vital. You can build one for less than 5 bucks. As far as drivers go, wait a couple days for other members to respond. I am sure you will get some good advice. This is basic idea. You will need larger diodes for 2A, and the number of...

Yes and no. Nearly all of my diode builds are lab style, and all of them have permanent built in current meters. I have never had any problems driving diodes through a meter. That being said, I always preset the driver to safe specs using a dummy load. Even though the drivers are adjustable, I...

I can not speak to the PWM. However, I have successfully used a 10k pot for analog adjustment several times with BB8.