0.88-THz Optical Clock Distribution on Adhesively Bonded Silicon Nanomembrane

Author

Yang Zhang ; Xiaochuan Xu ; Kwong, David ; Covey, John ; Hosseini, Amir ; Chen, Ray T.

Author_Institution

Univ. of Texas at Austin, Austin, TX, USA

Volume

26

Issue

23

fYear

2014

fDate

Dec.1, 1 2014

Firstpage

2376

Lastpage

2379

Abstract

Silicon photonics is a promising solution for on-chip optical clock distribution. We developed an adhesive bonding process to integrate silicon nanomembranes onto silicon chips. The single-mode strip waveguide fabricated on this adhesively bonded silicon membrane has a propagation loss of 4.3 dB/cm. A grating-coupled 1-to-32 H-tree optical distribution is experimentally demonstrated. Each branch includes 1.1-cm long strip waveguides, five Y-splitters, and three 90° bends. This optical distribution has a insertion loss of 13.9 dB, uniformity of 0.72 dB, and 3-dB bandwidth of 880 GHz determined by optical autocorrelation.

Keywords

adhesive bonding; diffraction gratings; integrated optics; nanophotonics; optical beam splitters; optical fabrication; optical losses; optical waveguides; silicon; Si; Y-splitters; adhesive bonding process; frequency 0.88 THz; grating-coupled 1-to-32 H-tree optical distribution; insertion loss; loss 13.9 dB; on-chip optical clock distribution; optical autocorrelation; propagation loss; silicon chips; silicon nanomembrane; silicon photonics; single-mode strip waveguide; size 1.1 cm; strip waveguides; uniformity; Couplers; Gratings; Optical device fabrication; Optical fibers; Silicon; Optical clock distribution; adhesive bonding; silicon nanomembrane;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2014.2356575

Filename

6895118