Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers
Author
Source
International Journal of Optics
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-17
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
We present the first unique design of a polarization-independent dual-wavelength splitter for wavelengths around 1.3 μm and 1.55 μm that is potentially of great interest to passive optical network (PON) applications.
The filter design is simple compared with the other architectures and is based on ridge-type lateral directional couplers that can be readily integrated with other planar waveguide devices.
Two design examples, based on InP/InGaAsP and Si/SiGe waveguides, are given.
This polarization-independent wavelength splitting is achieved by exploiting the polarization dependence of the waveguides to produce coupling lengths that are sensitive to polarization and wavelength.
We show that, to split the wavelengths without splitting the polarizations, the coupling lengths must be sufficiently different for TE and TM and for the different wavelengths in order to give the correct required ratios between the TE and TM coupling lengths for the two wavelengths of interest.
We also show that the same approach can be applied to the design of a polarization splitter.
The crosstalk, optical bandwidth, and fabrication sensitivity for the wavelength filter are evaluated.
American Psychological Association (APA)
Lee, Chee-Wei. 2011. Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers. International Journal of Optics،Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-458517
Modern Language Association (MLA)
Lee, Chee-Wei. Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers. International Journal of Optics No. 2011 (2011), pp.1-9.
https://search.emarefa.net/detail/BIM-458517
American Medical Association (AMA)
Lee, Chee-Wei. Design of Polarization-Independent Coarse Wavelength Splitters Based on Ridge-Waveguide Directional Couplers. International Journal of Optics. 2011. Vol. 2011, no. 2011, pp.1-9.
https://search.emarefa.net/detail/BIM-458517
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-458517