The output wavelength of a VCSEL is current and temperature dependent so using a low noise current source and regulating the chip temperature is usually necessary to allow locking to an atomic transition. Most VCSELS for such applications include a peltier module within the housing.
Bruce > On 11 June 2018 at 19:26 Attila Kinali <[email protected]> wrote: > > > On Mon, 11 Jun 2018 06:53:49 +0200 > Magnus Danielson <[email protected]> wrote: > > > One might then ask what the availability and pricetag is for nonlinear > > chrystal needed for frequency doubling. > > It cannot be too much, given the fact that these are used in > green laser pointers. > > Though, I have to say I am astonished how expensive those VCSEL are. > I would have guessed they are below $100/pcs, given that "normal" > laser diodes are usually in the order of $10-$20. > > > Attila Kinali > -- > It is upon moral qualities that a society is ultimately founded. All > the prosperity and technological sophistication in the world is of no > use without that foundation. > -- Miss Matheson, The Diamond Age, Neil Stephenson > _______________________________________________ > 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.
