VCSELS don't seem to gain-switch well. DFBs seem to be better.
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4 years ago
-- John Larkin Highland Technology, Inc trk jlarkin att highlandtechnology dott com http://www.highlandtechnology.com
Trying JLCPCB for 200A 6kW LED pulser
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4 years ago
The self-pulsing trick depends on the constants in the rate equations, which govern the population inversion, optical gain, and circulating optical power. VCSELs have very short cavities, so their optical build-up time is also short, so their behaviour is more nearly first-order. (Or something like that.) ;)
Cheers
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC / Hobbs ElectroOptics Optics, Electro-optics, Photonics, Analog Electronics Briarcliff Manor NY 10510 http://electrooptical.net http://hobbs-eo.com
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4 years ago
Not bad for 1 AM!
My guy Jonathan has a lot of experience teasing out clean g-s pulses. You might email him if you want to play with this.
We have a couple of drivers that work well for this, too.
-- John Larkin Highland Technology, Inc trk jlarkin att highlandtechnology dott com http://www.highlandtechnology.com