Using photonics for real-time processing.

On May 22, 6:40 pm, MooseFET wrote in
http://groups.google.com/group/alt.c...1bcc8d0?hl=en&
:

On May 22, 3:47 pm, Radium wrote:



On May 13, 9:14 am, MooseFET wrote:

On May 13, 8:52 am, Radium wrote:
My dream PC is as hardware, real-time, and digital as possible. In
addition, it uses the least amount of buffering required [hopefully
none] and experiences the least amount of latency possible [again,
hopefully none].
This may be your dream but it may also be a nightmare. You also said
you wanted low power and no fan. If you want a lot of speed, you
really want a good cooling system and a whole lot of power. If you
want to make a faster system with low power, you want to make use of
things like lookup tables and hashes.

Couldn't the problem of excessive heat and large use of power be
solved [or at least mitigated] by using lower voltages while still
running things in real-time [and with the least amount of storage,
software, buffering, and latency possible] and not using fans?

No. It largely can't be avoided. If you have to do your sine function
from first principles and you want speed, you need a huge number of
operations per second.

Do you think the heat generated and power requirements will decrease
when photonic chips are available?

AFAIK, photonic circuits produce less heat than electric circuits.
However I am aware that even when photonics becomes the norm [i.e. if
is does], electricity will still be necessary for power supply.

I am thinking of a purely optical computer that is powered by a main
400 nm laser. The main laser if of course powered by electricity.

This optical PC contains 400 nm lasers but no LEDs. AFAIK, lasers tend
to be more efficient that LEDs.

So do you think a chip based on lasers - instead of electricity - can
be as real-time, hardware, and digital as possible while using the
least amount of buffering required [hopefully none] and experiencing
the least amount of latency possible [again, hopefully none] and at
the same time being high-speed not getting hot enough to need any
cooling equipment?

I think it would be easier to do this in photonics that electronics.
Since electronics seem to easily overheat.

"Radium" wrote in message
oups.com...
Do you think the heat generated and power requirements will decrease
when photonic chips are available?

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

Bob M.

Bob Myers wrote:
"Radium" wrote in message
oups.com...
Do you think the heat generated and power requirements will decrease
when photonic chips are available?

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

Bob M.

Or he could just stop talking ********

SteveH wrote:

Bob Myers wrote:
"Radium" wrote in message
oups.com...
Do you think the heat generated and power requirements will decrease
when photonic chips are available?

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

Bob M.

Or he could just stop talking ********


He would implode. Do you have any idea what kind of mess that would
make?


--
Service to my country? Been there, Done that, and I've got my DD214 to
prove it.
Member of DAV #85.

Michael A. Terrell
Central Florida

On May 23, 11:21 pm, "Bob Myers" wrote:

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

An electronic chip uses electricity for storage, recording, playback,
transmission, reception, and processing of signals.

A photonic chip uses monochromatic light [hopefully in the form of
lasers] for storage, recording, playback, transmission, reception, and
processing of signals.

The problem is, how to store photons?

On May 24, 2:14 am, "Michael A. Terrell"
wrote:
SteveH wrote:

Bob Myers wrote:
"Radium" wrote in message
roups.com...
Do you think the heat generated and power requirements will decrease
when photonic chips are available?

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

Bob M.

Or he could just stop talking ********

He would implode. Do you have any idea what kind of mess that would
make?

No, I disagree. He would explode. It would be an exothermic BS
reaction making more heat than light.

Radium wrote:

The problem is, how to store photons?

Holografic memory?

Regards
Klaus

On May 24, 6:11 am, Radium wrote:
On May 23, 11:21 pm, "Bob Myers" wrote:

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

An electronic chip uses electricity for storage, recording, playback,
transmission, reception, and processing of signals.

A photonic chip uses monochromatic light [hopefully in the form of
lasers] for storage, recording, playback, transmission, reception, and
processing of signals.

The problem is, how to store photons?


Storing photons directly requires crystals that are supercooled. This
isn't very practical. You really just want to store the information
it contains.

Far less than half the atoms you were made from 10 years ago are still
in your body. You are still you, however. You are the information
encoded in those atoms not the atoms. The same is true of software.
It is not the electrons of photons. It is the bits.

On 24 May 2007 06:11:23 -0700, in sci.electronics.design Radium
wrote:

On May 23, 11:21 pm, "Bob Myers" wrote:

If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

An electronic chip uses electricity for storage, recording, playback,
transmission, reception, and processing of signals.

A photonic chip uses monochromatic light [hopefully in the form of
lasers] for storage, recording, playback, transmission, reception, and
processing of signals.

The problem is, how to store photons?


Silver Indium Antimony Tellurium alloy?


martin

martin griffith wrote:
On 24 May 2007 06:11:23 -0700, in sci.electronics.design Radium
wrote:


On May 23, 11:21 pm, "Bob Myers" wrote:


If you can describe just what you mean by "photonic
chips" and the principles on which such things might
operate, then maybe that question would be more readily
answered.

An electronic chip uses electricity for storage, recording, playback,
transmission, reception, and processing of signals.

A photonic chip uses monochromatic light [hopefully in the form of
lasers] for storage, recording, playback, transmission, reception, and
processing of signals.

The problem is, how to store photons?



Silver Indium Antimony Tellurium alloy?

Yes, but this is a write _only_ solution.

donald




martin