Re: Infrared reciver

On Fri, 20 May 2005 19:36:50 -0700, "Watson A.Name - \"Watt Sun, the
Dark Remover\"" <NOSPAM@xxxxxxxxxxxxxx> wrote:

>
><grapev@xxxxxxxxx> wrote in message
>news:cf7s8158g8hq5fi6g52i3kr8fk2smc0mjn@xxxxxxxxxx
>> On Fri, 20 May 2005 04:57:07 -0700, "Watson A.Name - \"Watt Sun, the
>> Dark Remover\"" <NOSPAM@xxxxxxxxxxxxxx> wrote:
>>
>> >
>> ><grapev@xxxxxxxxx> wrote in message
>> >news:p46r81hm5u9a930pkg82ptn9cbcsj72c05@xxxxxxxxxx
>> >> I am looking for a IR reciver module with bandwidth greater the
>common
>> >> 40khz (namely 10 to 100mhz or more) and a recemendation for a
>suplier
>> >>
>> >> Thanks
>> >> Jeromie
>> >
>> >
>> >I would suggest looking at the receiver modules for fiber optic
>cables,
>> >probably for single mode FO cables. But then you didn't say what
>> >wavelength IR you were using. You may have to build your own using
>> >photodiodes.
>> >
>>
>> I thought about using fiber modules. I was/am worried that they would
>> not work well due to packaging (and im not to hot on cutting one up
>> just yet). Having never used one in this way, Does the packaging need
>> to be modifide or is there one that is already in shape for this type
>> of project? Using a photo diode would be fine if I could find one that
>
>What project? Oh, now I see, below.
>
>> I knew of one that would work well. Yes ive hit google but find little
>> in the way of user experiance for the units I found. Ive not yet
>> settled on a exact wavelength. If using fiber modules it will have to
>> be around 850nm, 1300nm and 1550nm as that is what all the units ive
>> seen operate in. If using a photodiode then likely around 750 to 900nm
>> as most of the IR leds ive seen are in this range. I should check the
>> fiber modules and see if the respond to this range also. I wonder if
>> it possible to couple FSO into a fiber? This project is for `just` 1/4
>> mile links. A few friends and I want to build a 10 or 100mbit ethernet
>> ring between our homes.
>
>Build the Ronja Metropolis. http://ronja.twibright.com/
>
>> Jeromie
>

Ive a much simpler design and I have been told that the Ronja has
issues with part stability. I do use that site for some info, along
with a number of others (they all do voice/serial over a pen laser and
one does 144khz fm (I think that was it, ill need to find it agian)).
I could always find a ethernet to fiber driver and repalce the laser
section.

Jeromie

.

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