[Polhe3] narrow laser update

[Zhiwen Zhao]

Dear All

the wiki page
https://hallaweb.jlab.org/wiki/index.php/Polhe3_laser

I think many of you have heard about our QPC laser test result.
We just returned the laser for repair.
I made a brief summary on wiki

You can also see some Raytum laser demo photos on the wiki
Raytum is evaluating if they can reuse the coherent laser control and 
only change the diode inside to their narrow diode.
The response so far is positive and we can trying to do a final 
confirmation when they visit Jlab early next week ( it's tentative  next 
Monday afternoon)

Let me know any question or comment

Thanks

Zhiwen