Optical methods boost A-to-D converters over Walden Wall

Promising optical alternatives for increasing the performance of analog-to-digital (A-to-D) converters beyond their current electronic limits are under development in several laboratories around the United States, as evidenced by presentations at the IEEE Microwave Photonics (MWP) Conference (Long Beach, CA) last month and the IEEE Lasers and Electro-Optics Society (LEOS; Long Beach, CA) meeting last November.

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