DocumentCode :
1303481
Title :
Author :
Voigt, Karsten ; Zimmermann, Lars ; Winzer, Georg ; Tian, Hui ; Tillack, Bernd ; Petermann, Klaus
Author_Institution :
Tech. Univ. Berlin, Berlin, Germany
Volume :
23
Issue :
23
fYear :
2011
Firstpage :
1769
Lastpage :
1771
Abstract :
We present a fully passive silicon nanowire-based optical 90° hybrid based on a 4 × 4 multimode interference (MMI) coupler for application in coherent receivers. Simulations show 4×4 MMI coupler performance regarding excess loss, imbalance, bandwidth, and phase accuracy. The 4×4 MMI couplers show stable performance over C-band with excess loss and imbalance<; 0.5 dB and phase accuracy better than 5°. We obtain over C-band minimum extinction ratios of 20 dB.
Keywords :
elemental semiconductors; light interference; microwave receivers; nanowires; optical couplers; optical receivers; optical waveguides; silicon; C-band optical hybrids; Si; coherent receivers; fully passive silicon nanowire; multimode interference coupler; silicon nanowaveguide technology; Couplers; Optical coupling; Optical device fabrication; Optical receivers; Optical signal processing; Optical waveguides; Silicon; 4$,times,$ $^{circ}$
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2011.2165703
Filename :
5993497
Link To Document :
