[Laser] Is it sill alive? If so I have a question.

Sun May 13 00:56:33 EDT 2018

I keep starting to try and build out KA7OEI's optical transmitter/receivers
in Eagle and/or KiCad, but keep getting distracted. I could build the parts
on perf board, but I thought it might be nice to have actual PCBs. Maybe
I'll restart that project one of these days.

Sean WA1TE

On Sat, May 12, 2018 at 8:01 PM Chuck Hast <wchast at gmail.com> wrote:

> I just tossed my question out there, I had noticed a BIG drop off in
> activity. Sure
> seems that we should still be pushing at it. But you get all overloaded
> with other
> stuff and that laser project keeps on getting further and further down the
> road.
>
> What with the proliferation of diodes from one end of the spectrum to the
> other
> with the absence of only amber (yea, you can do it with a DPSS setup but it
> is
> not efficient and expensive) be interesting to see what can be done with
> the
> newer wavelengths. Of course we know that green and up are going to see
> more and more attenuation but still be interesting to see what can be done.
>
> I ordered some 515nm diodes the other day from China, when I got them they
> sure looked more like 495nm vice 515. That is the first job that goes on my
> spectrogaph as soon as I get the thing to show me the numbers they way they
> should be.
>
> That said there is a lot of stuff out there that may make the FSO even more
> fun to do.
>
> By way many of the low power green diodes are also TEM00 mode for what
> ever it is worth.
>
> On Sat, May 12, 2018 at 4:26 PM, Zack Widup <w9sz.zack at gmail.com> wrote:
>
> > I'm working on going up the bands one at a time. Maybe I'll get a
> > laser/light comm system together this year. But I got on 47 GHz as a new
> > band last year and successfully made some contacts on that band. Now
> > finishing up on 78 GHz. A laser system would be a LOT simpler than these
> > bands!
> >
> > 73, Zack W9SZ
> >
> >
> > On Sat, May 12, 2018 at 3:33 PM, Kerry Banke <kbanke at sbcglobal.net>
> wrote:
> >
> > > I'm still here also in San Diego. Haven't found  any interest here in
> > > recent years so all my gear is sitting in boxes. My longest experiments
> > > yielded 15 miles NLOS and 60miles LOS. The gear can do more but that's
> > what
> > > was local and convenient at the time. Also getting more nervous about
> > using
> > > Lasers from hilltops these days. I do have a retroreflector on a hill
> > some
> > > 3+miles away that is great for testing from my back yard. - Kerry N6IZW
> > >
> > >       From: Ron Simpson via Laser <laser at mailman.qth.net>
> > >  To: Free Space LASER Communications <laser at mailman.qth.net>; Kurt
> > Theis <
> > > theis.kurt at gmail.com>; Free Space LASER Communications <
> > > laser at mailman.qth.net>
> > >  Sent: Saturday, May 12, 2018 1:22 PM
> > >  Subject: Re: [Laser] Is it sill alive? If so I have a question.
> > >
> > > Hey Kurt!
> > > I'm still here. Kurt and I did some laser and LED experiments. My
> > receiver
> > > could hear light beacons at 30 miles. I still want to play with optical
> > > comms. I think we should organize a West Coast light show.
> > > There are some guys in the SF Bay Area with Ladio Systems
> > >
> > > Ron Simpson, N6GKJ
> > > http://n6gkj.lodiarc.org
> > >
> > >
> > >   On Sat, May 12, 2018 at 12:02 PM, Kurt Theis<theis.kurt at gmail.com>
> > > wrote:  Looks like a few are still on. How can we help?
> > >
> > > Kurt Theis
> > > https://landfallnet.blogspot.com
> > > theis.kurt at gmail.com
> > >
> > > On Sat, May 12, 2018, 1:40 PM Steve J. Noll <sjnoll at ix.netcom.com>
> > wrote:
> > >
> > > > I'm still here too. But lost everything in the California fire in
> > > December.
> > > > Slowly rebuilding the lab, haven't got to the electro-optic stuff
> yet.
> > > > Hope to be back and running in a year or so.
> > > >
> > > > 73, Steve WA6EJO
> > > > http://www.qrz.com/db/WA6EJO
> > > >
> > > >
> > > > On 5/12/2018 6:14 AM, Chuck Hast wrote:
> > > > > Are people still on here? have not seen anything in a while. But if
> > > > there is
> > > > > anyone, I have a question.
> > > > >
> > > > >
> > > >
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> --
>
> Chuck Hast  -- KP4DJT --
> I can do all things through Christ which strengtheneth me.
> Ph 4:13 KJV
> Todo lo puedo en Cristo que me fortalece.
> Fil 4:13 RVR1960
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