--------
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
[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.
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