[time-nuts] PTTI 2012, part 2

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Dec 4 21:17:52 UTC 2012

In message <50BE4F1D.7020702 at xtra.co.nz>, Bruce Griffiths writes:
>The lasers arent that difficult to make or expensive if one adopts a 
>modified Littrow ECDL configuration.
>Laser diodes without AR coatings have been used successfully in such lasers.
>Low noise current sources and close temperature control of the laser 
>diode chip are required.

Wouldn't the right way to be to do an optical comb, use that to lock
the lasers for the fountain, then lock the optical comb to the fountain ?

(Yes, I know! :-)

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
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