Tunable optical group delay in an active waveguide semiconductor resonator

We investigate a novel optical filter with specific application to tunable optical delay lines. The structure consists of cascaded chirped grating and phase-shifter sections, providing two optical cavities which generate a wide range of potential filter responses. The active waveguide nature of the...

Full description

Saved in:
Bibliographic Details
Published inIEEE journal of selected topics in quantum electronics Vol. 11; no. 1; pp. 197 - 203
Main Authors Fisher, M.R., Minin, S., Shun-Lien Chuang
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2005
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Chirp
Delay lines
Diffraction gratings
Gratings
Group delay
Holes
Injection current
Integrated optoelectronics
optical delay lines
Optical filters
Optical reflection
Optical resonators
Optical waveguides
Optimization
Propagation delay
Reflection
Resonator filters
Semiconductor waveguides
Semiconductors
waveguide bends
Waveguides
Online AccessGet full text

Cover

More Information
Summary:We investigate a novel optical filter with specific application to tunable optical delay lines. The structure consists of cascaded chirped grating and phase-shifter sections, providing two optical cavities which generate a wide range of potential filter responses. The active waveguide nature of the filter allows current-controlled tunability of both the spectral response and the corresponding group delay. The filter is studied experimentally and theoretically for both transmission and reflection schemes, highlighting the tradeoffs. We demonstrate that continuous group delay tunability of 43 ps can be achieved in reflection with small power variation by optimizing the injection currents.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ObjectType-Article-2
ObjectType-Feature-1
ISSN:1077-260X
1558-4542
DOI:10.1109/JSTQE.2004.841714