Back to Search
Start Over
Filtering characteristics of hybrid integrated polymer and compound semiconductor waveguides
- Source :
- Journal of Lightwave Technology
- Publication Year :
- 2002
- Publisher :
- IEEE, 2002.
-
Abstract
- This paper reports a study on a compact filter fabricated using hybrid integration of compound semiconductors and polymers. A GaAs epilayer is glued onto a polymer channel waveguide forming a highly asymmetrical directional coupler. This approach results in a narrow band filter due to very different dispersion characteristics of the compound semiconductor and the polymer materials. Furthermore, fiber coupling loss has been significantly reduced, since the input and output coupling is done through the polymer waveguide. Filtering characteristics can be engineered by changing the thickness and the length of the semiconductor epilayer. This can be done precisely using etch stop layers and noncritical lithography. The spectral response of such a filter can also be tuned electronically either using the electro-optic properties of the compound semiconductor or the thermo-optic properties of the polymer.
- Subjects :
- Polymer channel waveguide
Materials science
Lithography
Hybrid integration
Bandstop filter
Physics::Optics
Semiconducting gallium arsenide
Band-stop filter
Wavelength division multiplexing (WDM)
Waveguide (optics)
Optical filters
Gallium arsenide
chemistry.chemical_compound
Condensed Matter::Materials Science
Optics
Dispersion (optics)
Integrated optoelectronics
Dispersion (waves)
Optical multilayers
Optical filter
Tunable filter
Fiber coupling loss
Optical properties
business.industry
Semiconductor device manufacture
Gallium arsenide epilayer
Hybrid integrated polymer waveguides
Atomic and Molecular Physics, and Optics
Narrow band filter
Optical waveguides
Semiconductor
Electrooptical effects
chemistry
Wavelength division multiplexing
Compound semiconductor waveguides
Power dividers and directional couplers
Optoelectronics
Thermooptic properties
business
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Journal of Lightwave Technology
- Accession number :
- edsair.doi.dedup.....90b6fb63a224c909fdbd2ad14b469167