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IBM crafts silicon optical amplifier

7/30/2010 04:01 AM EDT
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Bob Lacovara
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re: IBM crafts silicon optical amplifier
Bob Lacovara   8/3/2010 1:57:07 PM
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Here's a curiosity. Many years back, many digital computers were serial machines. The Minuteman IIB flight computer comes to mind. Why digital? Because they were build using discretes, and therefore the designers traded speed off against less hardware (and presumably, greater reliability). Ok. So where are all of the design texts on serial adders, multipliers, etc? Long gone, of course. But serial techniques haven't become extinct, and with the eventual rise of photonic circuits, we may see the need and application for such methods once again. What goes around, comes around.

gronk
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re: IBM crafts silicon optical amplifier
gronk   7/31/2010 1:37:12 AM
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I believe the article has a typo: Four-wave mixing, not four-way mixing. Four-wave mixing implies a pump laser. Unfortunately, silicon optics require at least one III-V laser somewhere in the system. Intel's results are impressive, but the need for a non-silicon device tempers the impact.

EE,etc.
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re: IBM crafts silicon optical amplifier
EE,etc.   7/30/2010 5:31:34 AM
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After a relatively long history we have seen in Silicon Electronic Amplifiers (since the 1st Transistor at 1954) the low cost Silicon Optical Amplifier is a fascinating invention, will it begin the Optical revolution?

EE,etc.
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re: IBM crafts silicon optical amplifier
EE,etc.   7/30/2010 5:29:39 AM
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After a relatively long history we have seen in Silicon Electronic Amplifiers (since the 1st Transistor at 1954) the Silicon Optical Amplifiers are a fascinating invention, will they begin the Optical revolution?

Mark Wehrmeister
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re: IBM crafts silicon optical amplifier
Mark Wehrmeister   7/30/2010 5:07:25 AM
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The use of standard silicon will help to keep the price low for these optical amplifiers. This will ultimately result in lower prices for the devices that use them like medical imagers. How soon will these devices make it to the market?

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