Ultracompact AWG Using Air-Trench Bends With Perfluorocyclobutyl Polymer Waveguides

Author

Lin, Yongbin ; Rahmanian, Nazli ; Kim, Seunghyun ; Nordin, Gregory P. ; Topping, Chris ; Smith, Dennis W., Jr. ; Ballato, John

Author_Institution

Nano & Micro Device Center (NMDC), Univ. of Alabama in Huntsville, Huntsville, AL

Volume

26

Issue

17

fYear

2008

Firstpage

3062

Lastpage

3070

Abstract

Using air-trench bends, an ultracompact 8 times 8 arrayed waveguide grating (AWG) demultiplexer (200-GHz channel spacing) for wavelength-division multiplexing (WDM) has been designed and fabricated with perfluorocyclobutyl (PFCB) core and clad co-polymers on a polyimide substrate. Compared to a conventional AWG in the same material system, the air-trench bend AWG shrinks the required chip area by a factor of 20. The decreased size is a factor in reducing the measured thermal shift to -0.012 nm/degC and decreasing the polarization-dependent wavelength shift to 1.3 nm.

Keywords

arrayed waveguide gratings; wavelength division multiplexing; air-trench bends; arrayed waveguide grating demultiplexer; frequency 200 GHz; perfluorocyclobutyl polymer waveguides; wavelength-division multiplexing; Arrayed waveguide gratings; Channel spacing; Polarization; Polyimides; Polymers; Semiconductor device measurement; Size measurement; Thermal factors; Wavelength division multiplexing; Wavelength measurement; Optical filters; optical planar waveguide components; waveguide arrays; waveguide bends;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2008.920091

Filename

4738503