Integrated scalable continuously tunable variable optical delay lines (invited)

Author

Rasras, Mahmoud S. ; Madsen, C.K. ; Cappuzzo, M.A. ; Chen, Eason ; Gomez, L. ; Laskowski, E.J. ; Griffin, Anthony ; Wong-Foy, A. ; Kasper, A. ; Patel, Sanket S.

fYear

2005

fDate

22-28 Oct. 2005

Firstpage

736

Lastpage

737

Abstract

A wide-tuning-range optical delay line is demonstrated in high (2%) index contrast waveguides. This device integrates 4-stage ring resonator all-pass filters (APFs) with cascaded fixed spiral-type delay waveguides; each fixed delay path varies in length by a factor of 2 from the previous stage. A 2×2 switch separates each fixed delay and the tunable parts of the delay line. The APFs allow for continuous delay tuning. This device enables coherent switching and continuous tuning ranges greater than 2.56 ns.

Keywords

integrated optics; optical communication equipment; optical delay lines; optical filters; optical resonators; optical switches; optical tuning; optical waveguides; all-pass filters; coherent switching; index contrast waveguides; ring resonator; tuning; variable optical delay lines; Communication switching; Delay effects; Delay lines; Integrated optics; Optical buffering; Optical filters; Optical ring resonators; Optical switches; Optical waveguides; Propagation delay;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2005. LEOS 2005. The 18th Annual Meeting of the IEEE

Print_ISBN

0-7803-9217-5

Type

conf

DOI

10.1109/LEOS.2005.1548209

Filename

1548209