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Direct from China is the cheapest…

On 12/02/2015, at 10:01 pm, Watkins, Simon C <[log in to unmask]> wrote:

> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
> 
> Finding it is easy.. cheap is another problem
> 
> Simon C. Watkins Ph.D, FRC Path
> Distinguished Professor and Vice Chair Cell Biology 
> Professor Immunology 
> Director Center for Biologic Imaging 
> BSTS 225 
> University of Pittsburgh 
> 3500 Terrace St 
> Pittsburgh PA 15261
> 412-352-2277
> www.cbi.pitt.edu
> 
> -----Original Message-----
> From: Confocal Microscopy List [mailto:[log in to unmask]] On Behalf Of Mark Cannell
> Sent: Thursday, February 12, 2015 4:49 PM
> To: [log in to unmask]
> Subject: Re: Tinkerers question
> 
> *****
> To join, leave or search the confocal microscopy listserv, go to:
> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
> Post images on http://www.imgur.com and include the link in your posting.
> *****
> 
> Hi Simon
> 
> Single mode fiber coupled 543 dpss. The output beam is then determined by the output coupler so you should be able to match the beam profile?
> 
> Don't think finding 20 mW single mode should be a problem. Google single mode 543 doss
> 
> HTH
> 
> Mark
> 
> On 12/02/2015, at 9:07 pm, Watkins, Simon C <[log in to unmask]> wrote:
> 
>> *****
>> To join, leave or search the confocal microscopy listserv, go to:
>> http://lists.umn.edu/cgi-bin/wa?A0=confocalmicroscopy
>> Post images on http://www.imgur.com and include the link in your posting.
>> *****
>> 
>> I would like to trade a traditional 543 HeNe for a solid state source in one of my confocal systems.  More power, reliability, sick of changing out tubes etc.
>> Its too painful to change the glass in the scan head or pay a service engineer to come in with his gadget to reprogram the AOTF so I do not really want to change wavelength.
>> There are of course many sources for the DPSS lasers, but obviously we all want a laser with a minimal (less than a mm) profile, no divergence and we want to pay as little money as possible.
>> So my question to the list is.. whats the best value source that fits my criteria, say: 20mW, 543nm, narrow, circular beam profile.
>> Vendors are welcome to contact me offline, I will share the results 
>> with the list if there is interest Tx S
>> 
>> Simon C. Watkins Ph.D, FRC Path
>> Distinguished Professor and Vice Chair Cell Biology Professor 
>> Immunology Director Center for Biologic Imaging BSTS 225 University of 
>> Pittsburgh
>> 3500 Terrace St
>> Pittsburgh PA 15261
>> 412-352-2277
>> www.cbi.pitt.edu<http://www.cbi.pitt.edu/>
> 
> Mark  B. Cannell Ph.D. FRSNZ
> Professor of Cardiac Cell Biology
> School of Physiology &  Pharmacology
> Medical Sciences Building
> University of Bristol
> Bristol
> BS8 1TD UK
> 
> [log in to unmask]