Title :
Narrow-band optical A/D converter with suppressed second-order distortion
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
fDate :
5/1/1999 12:00:00 AM
Abstract :
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.
Keywords :
analogue-digital conversion; intermodulation; optical communication equipment; optical frequency conversion; optical modulation; 0.8 ms; baseband digitized signal; high dynamic range narrow-band optical analog-to-digital converter; intermodulation suppression; ms sampling time; narrow-band electrical input signal; narrow-band optical A/D converter; second-order modulator distortion products; suppressed second-order distortion; Digital modulation; Frequency conversion; Narrowband; Optical distortion; Optical filters; Optical mixing; Optical modulation; Optical noise; Pulse modulation; Sampling methods;
Journal_Title :
Photonics Technology Letters, IEEE
