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Politics : Sioux Nation -- Ignore unavailable to you. Want to Upgrade?

To: SiouxPal who wrote (167139)	5/7/2009 10:23:36 AM
From: cirrus	Read Replies (1) \| Respond to of 362853

Gee... that's so simple. Why didn't I think of it? Two optical elements spread the pinprick laser pulses into an ordered two-dimensional array of colours. The pulse then passes back through the dispersive optics and again becomes a pinprick of light, with the image tucked away within as a series of distributed colours. However, that colour spectrum is mixed up in an exceptionally short pulse of light that would be impossible to unpick in traditional electronics. As a result, the red part of the spectrum races ahead of the blue part as the pulse travels along the fibre. Eventually, the red part and blue part separate in the fibre, arriving at very different times at the fibre's end. All that remains is to detect the light as it pops out of the fibre with a standard photodiode and digitise it, assigning the parts of the pulse that arrive at different times to different points in two-dimensional space.