I've been told that CD player type diodes can be successfully modulated up to about 600 MHz, but that going much further is either difficult or perhaps impossible. This came from a guy (at Tektronix) who worked with various types of diode lasers a lot, back in the 1980's. But at least they are cheap. I suspect that the leaded package is a significant part of the issue; this ought to be somewhat mitigated by a suitable RF matching network.
Dana On Thu, Jun 14, 2018 at 10:51 AM, Attila Kinali <att...@kinali.ch> wrote: > On Mon, 11 Jun 2018 22:29:42 +0800 > mimitech mimitech <mimit...@gmail.com> wrote: > > > I think your information is very interesting. I didn't realize which type > > of common LDs can do GHz level modulation (anyway I didn’t have much > > knowledge on laser diode before). > > Hehe. Same here. When I looked into CPT I thought that one needs > a fast laser diode as well. Then, a few years ago, I had the chance > to talk to John Kitching who corrected a few of my assumptions. > > > It would be great If you could recommend > > several good Laser diodes (which vendor/part number) with possible 1-2GHz > > modulation bandwidth. Thanks! > > Sorry, unfortunately I do not have any reliable data on the bandwidth > of standard laser diodes. The easiest would be probably if you select > some diodes that you can easily acquire, then contact the manufacturer. > Manufacturers almost always have more data on their devices than they > put into the datasheet. They do not include it because they can either > not sufficiently control those parameters during production, cannot > test for it or testing would be too expensive. > > 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 -- time-nuts@febo.com > To unsubscribe, go to https://www.febo.com/cgi-bin/ > mailman/listinfo/time-nuts > and follow the instructions there. > _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
