Title :
505-MS/s photonic analog-to-digital converter
Author :
Juodawlkis, P.W. ; Hargreaves, J.J. ; Younger, R.D. ; Betts, G.E. ; Wasserman, J.L. ; Ray, K.G. ; O´Donnell, F.J. ; Twichell, J.C.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
Abstract :
Summary form only given. Optical sampling techniques show great promise for realizing high-resolution (12 bit) analog-to-digital converters (ADCs) with multi-gigahertz of instantaneous bandwidth. The advantages of optical sampling derive from the ultra-low timing jitter (<100 fs) of short-pulse mode-locked lasers and the negligible electromagnetic crosstalk between the optical sampling pulses and the electrical signal being sampled. The phase-encoded sampling technique used in the 505-MS/s photonic ADC reported provides high linearity and large suppression (50-dB) of laser amplitude noise.
Keywords :
analogue-digital conversion; demultiplexing; electro-optical modulation; fibre lasers; laser beams; laser mode locking; laser noise; laser variables measurement; optical crosstalk; optical logic; optical pulse generation; phase coding; time division multiplexing; timing jitter; 100 fs; analog-to-digital converters; electrical signal; electromagnetic crosstalk; high linearity; instantaneous bandwidth; large suppression; laser amplitude noise; multigigahertz; optical sampling pulses; optical sampling techniques; phase-encoded sampling technique; photonic analog-to-digital converter; short-pulse mode-locked lasers; ultra-low timing jitter; Analog-digital conversion; Bandwidth; EMP radiation effects; Laser mode locking; Laser noise; Optical crosstalk; Optical noise; Optical pulses; Sampling methods; Timing jitter;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.947466
