Title :
An Optical-Electrical Sub-Sampling Receiver Employing Continuous-Time ΔΣ Modulation
Author :
Park, Matt ; Kim, Jung-Won ; Kaertner, Franz ; Perrott, Michael
Author_Institution :
Microsyst. Technol. Labs., Massachusetts Inst. of Technol., Cambridge, MA
Abstract :
An optical-electrical sub-sampling down-conversion receiver architecture leveraging low-jitter optical sampling is described. A simple interface between the optical and electrical domains is accomplished by combining a photodiode with a second-order continuous-time ΔΣ modulator. A prototype system implemented in 0.18 mum CMOS achieving 36.4 dB SNR in a 2 MHz BW with an OSR of 250 is demonstrated.
Keywords :
CMOS integrated circuits; continuous time systems; delta-sigma modulation; optical receivers; photodiodes; 0.18 micron; CMOS integrated circuit; continuous-time delta-sigma modulation; down-conversion receiver architecture; low-jitter optical sampling; optical-electrical sub-sampling receiver; photodiode; prototype system; Apertures; Jitter; Laser mode locking; Optical devices; Optical filters; Optical mixing; Optical modulation; Optical receivers; Photodiodes; Signal to noise ratio;
Conference_Titel :
Solid-State Circuits Conference, 2006. ESSCIRC 2006. Proceedings of the 32nd European
Conference_Location :
Montreux
Print_ISBN :
1-4244-0303-0
DOI :
10.1109/ESSCIR.2006.307561
