Search results

Why I need two? Your setup ( that is actually very cool) has also one diode and not two. You can purchase even a single one. That's why the price is higher. Everything less than a full lot ( i think they package them in 5 boxes with 200 diodes each) requires someone open one and pick it. 1 or...

You can get the 488nm sharp laser diodes wavelength selected from 475nm-500nm for about 400$ per diode (if you order only a few and not 2k or more. This is definitely much cheaper than the cost of a high level cooling/heating assembly and can be just inserted into the usual diode mounts. Singlemode

I have a quote here for the 500mW single mode blue diodes (from 435-465)nm for 2,258USD . Ans a quote for the NDA4116: EUR2052 (100mW speced) and you can choose the WL. So a little more, but on Ebay you can find old laser at this wavelength for a bargain and extract the diode. Nichia has a...

Fir this price you will gett a 200mW Nichia diode (you can choose your WL) and they have a great beam profile.

Try this guy: http://www.qphotonics.com/Single-mode-laser-diode-130mW-660nm-QLD-660-130S.html This diode from sharp : GH06P25A1C has a wavelenght spread through the batches up to 670nm. If you contact sharp, they can select the ones you looking for. he always helped me so far to get diodes on...

There is no need to heat them so strong. You can get wavelength selected 660nm diodes that lase close to 665nm and can be pulled in an ECDL up to 667nm or so. Than 10°C rise will give you 3nm higher wavelength so you should easily be able to run your ECDL at 40°C. This is a temperature that can...

Not that I am aware of. I assume you plan to use the diodes for Lithium laser cooling. If so there is a way to get the 100mW at 660nm to work at 671nm in an ECDL. Singlemode

The posted Ebay product is a compact 532nm DPSS source. Singlemode

The reason might be, that they are sold by Thorlabs and they guarantee the specified performance of their products, what is not the case for the cheap Chinese ones. If this justifies the higher price is up to the buyer. For people here in the forum who are into pointers, I don't see a reason to...

You only need to collimate the green output and you are good to go. Singlemode

Thats a 808nm pump diode, crystal that generates 1064nm and a doubling crystal that creates 532nm. Singlemode

Yes, the single mode diodes from Nichia are binned and measured individually and the data on the diode box is specific. Singlemode

Since the forum upgrade a year ago (a so) its getting worse and worse. Ads everywhere and spam too. What about an extra area for new members, they have to post X post in Y days first, before being able to post somewhere else? Singlemode

Yes, they are just a little more than the standard ones. Singlemode

Thorlabs has also custom fiber configurations: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=2410 You can order a short sma to fc/pc there Singlemode

You can't beat the laws of physics. There is no such a thing as the multi mode diodes we know with a round beam staying round over long distances. Singlemode

I can imagine something like CNC applications, where you are interested in beam profile at one point only (in the focus) then these FAC diodes help you if you don't want any additional optics, otherwise I don't know. Singlemode

Like allready stated before this is not possible with multi mode diodes. They have a large M^2 for the slow axis: https://en.m.wikipedia.org/wiki/M_squared The M^2 is in order of 5-10. So for the same waist size the divergence will be 5-10 times higher than the fast axis. A square beam just...

I have the feeling you are troll, and won't post anymore in this thread. Singlemode

I still don't understand what's your problem is and why stuck with the NA question here, it was answered now multiple times in this thread. I suggest GOOGLE in this case for you. Regarding your lens that is places 1 focal lenght away: This will collimate a point source but you want to focus it...