Title :
Optical down-sampling of an X-band 1-GHz-bandwidth nonlinear chirp signal
Author :
Juodawlkis, P.W. ; Hargreaves, J.J. ; Younger, R.D. ; Titi, G.W. ; Twichell, I.C.
Author_Institution :
Lincoln Lab., MIT, Lexington, MA, USA
Abstract :
We have demonstrated a new technique to characterize wideband nonlinear waveforms at microwave carrier frequencies. The analog sampling bandwidth can be increased with wider bandwidth sampling modulators and shorter optical pulses. The instantaneous Nyquist bandwidth can be extended using time-interleaving techniques.
Keywords :
analogue-digital conversion; electro-optical modulation; fibre lasers; frequency response; laser mode locking; lithium compounds; microwave photonics; ring lasers; signal sampling; 1 GHz; 10 GHz; LiNbO3; LiNbO3 Mach-Zehnder modulator; X-band 1-GHz-bandwidth nonlinear chirp signal; X-band carrier frequency; analog bandwidth limitation; analog sampling bandwidth; frequency response; harmonically mode-locked fiber ring laser; instantaneous Nyquist bandwidth; microwave carrier frequencies; optical down-sampling; optical pulse width; phase-encoded optical sampling technique; time-interleaved ADC architectures; time-interleaving techniques; wideband nonlinear waveforms; Bandwidth; Chirp modulation; Frequency; Microwave theory and techniques; Nonlinear optics; Optical modulation; Optical pulses; Pulse modulation; Sampling methods; Wideband;
Conference_Titel :
Lasers and Electro-Optics Society, 2002. LEOS 2002. The 15th Annual Meeting of the IEEE
Print_ISBN :
0-7803-7500-9
DOI :
10.1109/LEOS.2002.1159553
