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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.

In this multi post series, I'll describe step by step series how I built by ECDL setup. Let's start with physical construction. Design In this build, I'll use diffraction grating to reduce the bandwidth. The grating will be operating in Littrov configuration. In this case, it's beneficial to...

Hi, I'm looking for 1200 lines/mm reflective diffraction grating. Can be really small (6x6 mm minimum). Anyone has something reasonable for sale?

I'm looking for a few parts for my new projects, if anyone's willing to sell anything from the list feel free to contact me: thin etalons. Anything sub 1 mm really. I'm looking for few visible wavelengths, but because most etalons don't have/need coatings, almost all will work as long as...

Hi, so in this thread op37 documented his journey with getting nice side pumped Nd crystals bonded to Q switch. Unfortunately, he seems long gone from the forum. Does anyone has crystals like that one for sale or knows where I could find one?

In my journey to get orange coherent photos from P3+ I stumbled upon many obstacles the mayor one being managing and collimating pump beam. I started by using thorlabs cage system collimator setup but as anyone buying from thorlabs knows it's very expensive. LDH56-P2 originally used for...

Hi guys! Today I'd like to present my newest achievement, orange laser. The inspiration I'd like to share the details of my journey in acquiring an orange laser for my desk. Some of you might know that I initially dabbled with dye lasers. While they are impressive in terms of the range of...

I'm experimenting with Pr:YLF crystal that's capable of lasing at few visible wavelengths (green, orange, red, deep red) and I'm looking for selective mirrors to get specific wavelengths to lase. I have almost same problem as HeNe with red line being the brightness so I'm hoping to reuse...

I found few potentially interesting laser heads on local surplus market but I have some problem identifying them. Specifically: SPECTRA PHYSICS LINE LITE LASER MODEL 941 HEAD and Spectra-Physics V50-104Q Laser Head

Hi, so I decided to have a go at building custom Q-switched Nd:YAG laser. I'm hoping to go with diode pumping as sound of flashlight constantly firing is tiring after few hours. I found what seems to be good deal on fiber coupled 808nm pump sources but I have problem identifying connector and...