single-mode red diodes/Thorlabs

Joe Farina · Post by **Joe Farina** » Wed Oct 12, 2011 6:06 am

Wler wrote:I had just checked the HL63133 this weekend and it's very fine for ECDL operation, without any fudging I got more than 100mW SLM out right on the spot, and very very stable! I didn't push it to find the max. See here.

That's exciting news, I will stay tuned!

Joe Farina · Post by **Joe Farina** » Wed Oct 12, 2011 10:43 am

I did a little searching for that diode, and it was offered way back in January (in a group buy) for $175, also I saw something about it being offered for 130 Euros.

Valery · Post by **Valery** » Thu Oct 13, 2011 5:14 am

possible someone checked such?

http://www.ebay.com/itm/180735651622?ss ... 3641wt_901

Wler · Post by **Wler** » Thu Oct 13, 2011 7:00 am

Yes, this has been checked since long and is one of the most suitable diodes. But current prices are more like $90-$100 rather than what they ask for....

Joe Farina · Post by **Joe Farina** » Thu Oct 13, 2011 7:08 am

Wler, are there any more ECDL units on the horizon?

Tom B. · Post by **Tom B.** » Sat Oct 15, 2011 3:29 am

Joe Farina wrote:It seems that practically any diode can make holograms under the right conditions. The problem lies in the unpredictability.

Very true. I have though found some diodes to be quite forgiving about operating conditions. The problem is that all diodes (even from the same batch) are not created equal. I wish this could be sorted out. Next to the iffy availability of good cheap plates and film this is one of the major obstacles to holography as a mass hobby/artistic pursuit since it is so hard to make cheap holography lasers that can be guaranteed to work.