Hi A few kilometers of optical fiber should do the trick. Servo the fiber temperature to keep things locked up.
Bob On Dec 4, 2012, at 4:17 PM, Poul-Henning Kamp <[email protected]> wrote: > -------- > In message <[email protected]>, 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 > [email protected] | TCP/IP since RFC 956 > FreeBSD committer | BSD since 4.3-tahoe > Never attribute to malice what can adequately be explained by incompetence. > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
