-------- Dana Whitlow writes: > I knew about the use of the VCSEL, but I'd bet a good dinner that it's not a > Rubidium laser!
I dont see anybody claiming that ? It is a laser interrogated rubidum frequency standard. The crucial part of the "Theory of Operation" is: The MAC is a passive atomic clock, incorporating the interrogation technique of Coher- ent Population Trapping (CPT) and operating upon the D1 optical resonance of atomic 87Rb to control the frequency […] The laser is mounted on a Thermal-Electric Cooler (TEC) for precise temperature control and is modulated by the microwave synthesizer at half the hyperfine frequency to produce sidebands in the laser spectrum. […] But more relevant: The product is EOL with last ship date of 20210420 -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | 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 -- time-nuts@lists.febo.com -- To unsubscribe send an email to time-nuts-le...@lists.febo.com To unsubscribe, go to and follow the instructions there.