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Narrow-band optical A/D converter with suppressed second-order distortion

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1 Author(s)
Helkey, R. ; Lincoln Lab., MIT, Lexington, MA, USA

A high dynamic range narrow-band optical analog-to-digital converter configuration is proposed and demonstrated in which a narrow-band electrical input signal is converted to a baseband digitized signal while suppressing second-order modulator distortion products. Operation is demonstrated at 439 MHz, resulting in 72 dB of intermodulation suppression for a 0.8-ms sampling time.

Published in:

Photonics Technology Letters, IEEE  (Volume:11 ,  Issue: 5 )