Photobleached refractive index tapers in electrooptic polymer rib waveguides

Photobleached refractive index tapers in electrooptic polymer rib waveguides, which act as two-dimensional optical mode transformers, are investigated. One taper method involves a discrete step mask-shifting scheme with a fixed intensity UV light source. A second method utilizes a gray-scale mask to...

Full description

Saved in:
Bibliographic Details
Published inIEEE photonics technology letters Vol. 18; no. 1; pp. 64 - 66
Main Authors Geary, K., Seong-Ku Kim, Byoung-Joon Seo, Yu-Chueh Hung, Wei Yuan, Fetterman, H.R.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.01.2006
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Electrooptic (EO) polymer waveguides
Electrooptical waveguides
Electrooptics
Gray-scale
gray-scale mask
Light sources
Masks
mode transformer
Mode transformers
Optical polymers
Optical refraction
Optical variables control
Optical waveguides
passive-active integration
Photobleaching
Refractive index
refractive index taper
Refractivity
Scanning
Transformers
Two dimensional
Waveguides
Online AccessGet full text

Cover

More Information
Summary:Photobleached refractive index tapers in electrooptic polymer rib waveguides, which act as two-dimensional optical mode transformers, are investigated. One taper method involves a discrete step mask-shifting scheme with a fixed intensity UV light source. A second method utilizes a gray-scale mask to precisely control the intensity of UV light reaching each portion of the taper. Using a gray-scale mask, adiabatic refractive index tapers can be inscribed into electrooptic polymer waveguides in a single fabrication step with no scanning parts. Optimized taper profiles are derived and applications for their incorporation into passive-to-active waveguide transitions are described.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2005.860044