DocumentCode :
75598
Title :
Monolithic 
MMI-Based 25-Gb/s SOI DPSK Demodulator Integrated With SiGe Photodetector
Author :
Hai, Mohammed Shafiqul ; Nazmus Sakib, Meer ; Liboiron-Ladouceur, Odile
Author_Institution :
Dept. of Electr. & Comput. Eng., McGill Univ., Montréal, QC, Canada
Volume :
27
Issue :
6
fYear :
2015
fDate :
March15, 15 2015
Firstpage :
565
Lastpage :
568
Abstract :
In this letter, the performance of a 25-Gb/s 1 × 2 multimode interference (MMI) coupler-based monolithic differential phase shift keying (DPSK) receiver integrated with Germanium (Ge) on silicon-on-insulator (SOI) photodetector (PD) is presented. Theoretical analysis suggests that the device exhibits more uniform extinction ratio over the C-band compared with a DPSK demodulator based on 2×2 MMI coupler. Electrical scattering parameters (S-parameters) investigated through component level simulation comparing the fabrication tolerance shows power penalty of 1.2 and 5 dB for unbalanced and balanced detection DPSK receiver, respectively. The SOI 1×2 MMI coupler-based unbalanced DPSK receiver has a sensitivity of 0.41 dBm at a bit error rate of 1×10-9 without postelectrical amplification. The PD integrated single-end detectionbased receiver has a total footprint area of 0.39 mm2.
Keywords :
S-parameters; demodulators; differential phase shift keying; error statistics; integrated optics; integrated optoelectronics; optical couplers; optical fabrication; optical modulation; optical receivers; photodetectors; silicon compounds; silicon-on-insulator; C-band; Germanium on silicon-on-insulator photodetector; PD integrated single-end detection based receiver; S-parameters; SOI MMI coupler-based unbalanced DPSK receiver; SiGe photodetector; balanced detection DPSK receiver; bit error rate; bit rate 25 Gbit/s; component level simulation; electrical scattering parameters; fabrication tolerance; monolithic MMI-based SOI DPSK demodulator; multimode interference coupler-based monolithic differential phase shift keying receiver; postelectrical amplification; power penalty; theoretical analysis; uniform extinction ratio; Bit error rate; Couplers; Delays; Demodulation; Differential phase shift keying; Extinction ratio; Receivers; Monolithic integrated circuits; multimode interference coupler; photodetectors; silicon-on-insulator (SOI);
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2014.2377176
Filename :
6975059
Link To Document :
