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We purchased a LASOS LGK7786P100 1 mW 543 nm HeNe laser head and SAN 7460A Power supply to replace a similar HeNe laser on one of our confocal systems. The suplier for LASOS in the US was (and probably still is) MarketTech Inc. Our confocal was not a Leica, but I am guessing this might be the same laser you have (Model Number should be written on the tube). Price was around $ 1,550 for laser head, and $ 550 for power supply. We bough both the laser Head and power supply because we weren't sure which one was failing. On our system, access to the power supply was difficult, so I just mounted the laser head in place of the old one, left the power suply on the table, and now use the key on the power supply to turn laser ON/OFF (as opposed to having software control). It was pretty easy to do and has been working fine. Replacing our laser head with the same exact part made mounting and aligning the laser a non-issue. If the geometry of the tube is different, then mounting and aligning may be tricky. Depending on the configuration of your system and how you want to run it, it may be worth comparing costs of DIY and having it done by Leica. In my experience, Leica used to have quite reasonable pricing for service and parts replacement, at least in our area. They may also be able to tell you if you need to replace the head, power supply, or both. Replacing the HeNe yourself should be easy though, and probably the cheapest way.
--
Julio Vazquez
Fred Hutchinson Cancer Research Center
Seattle, WA 98109-1024
http://www.fhcrc.org==
On Jul 20, 2012, at 9:25 AM, Microscopy and Imaging Facility wrote:
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> Hi,
> We no longer have a service contract on our Leica SP2 and the power on the He Ne 543nm laser is getting very low. We are considering replacing the laser ourselves including doing the alignment, or buying one and having a Leica service rep install and align. Leica makes a big deal about needing the exact laser, they use LASOS but I would probably get a comparable Newport model, if there is one. Has anyone done this and do you have any suggestions or warnings?
> Thank you for your help.
> Carol
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