Title :
480 GSample/s time stretch transient digitizer
Author :
Han, Yan ; Boyraz, Ozdal ; Jalali, Bahram
Author_Institution :
Dept. of Electr. Eng., UCLA, Los Angeles, CA, USA
Abstract :
Photonic time stretch is a powerful technique in measuring the ultrafast transient signal beyond electronic limits. The bandwidth of time stretch is traditionally limited by a dispersion-induced frequency fading phenomenon. To overcome this limitation, we propose and demonstrate a new implementation of time stretch using phase diversity along with the maximum ratio combining technique. Transient signal measurements at 480 GSample/s with the intrinsic bandwidth 96 GHz are demonstrated.
Keywords :
analogue-digital conversion; high-speed optical techniques; optical information processing; 96 GHz; analog-to-digital conversion; dispersion-induced frequency fading; optical signal processing; phase diversity; photonic time stretch; time stretch digitizer; transient digitizer; transient signal measurements; ultrafast transient signal; Analog-digital conversion; Bandwidth; Diversity reception; Fading; Optical signal processing; Phase modulation; Radio frequency; Signal mapping; Time measurement; Wavelength measurement;
Conference_Titel :
Lightwave Technologies in Instrumentation and Measurement Conference, 2004. Proceedings of the
Print_ISBN :
0-7803-8722-8
DOI :
10.1109/LTIMC.2004.1370990
