Control of Linear Chirps in Waveguide Bragg Gratings by Applying Designed Core Profiles

Chirped gratings can be readily implemented in uniform-period waveguide Bragg gratings (WBGs) by adopting a tapered profile in the core patterning process. Based on our analysis, we have demonstrated that controlled linear chirps can be generated in WBGs with specifically designed core-taper profile...

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Bibliographic Details
Published in:Journal of lightwave technology 2009-11, Vol.27 (21), p.4809-4813
Main Authors: KIM, Min-Su, JUNG JIN JU, SEUNG KOO PARK, JAE YEOB SHIM, LEE, Myung-Hyun
Format: Article
Language:English
Subjects:
Applied sciences
Bragg gratings
Chirp
Circuit properties
core-taper profiles
Design engineering
dispersion
Dispersions
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Fabrication
Integrated optics. Optical fibers and wave guides
linear chirps
Lithography
Microprocessors
Optical and optoelectronic circuits
Optical fiber dispersion
Optical fiber polarization
Optical waveguides
Patterning
Polymers
Resists
Waveguides
Wavelength measurement
Wavelengths
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Description
Summary:Chirped gratings can be readily implemented in uniform-period waveguide Bragg gratings (WBGs) by adopting a tapered profile in the core patterning process. Based on our analysis, we have demonstrated that controlled linear chirps can be generated in WBGs with specifically designed core-taper profiles. By virtue of our established design and fabrication techniques, the measured center wavelengths, bandwidths, and dispersion coefficients of our fabricated straight and tapered polymeric WBGs agree very well with the designed values. We also obtained fairly low polarization-dependent wavelength shifts from the straight WBGs owing to the adopted low-birefringence polymeric materials.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2009.2025706