Physical insights into inverse-scattering profiles and symmetric dispersionless FBG designs
Physical insights into inverse-scattering profiles and symmetric dispersionless FBG designs
We revisit representative and widely used inverse-scattering fiber Bragg grating designs and shed physical insight into their characteristics. We first demonstrate numerically and experimentally that dispersionless square filters are actually dispersion compensated devices and we physically identify the spatially separated main (dispersive) reflector and dispersion compensator sections. We also look into the features of pure 2nd-order dispersion and 3rd-order dispersion compensator designs and discuss their physical importance. Finally, we use the gained physical insight to design strong symmetric gratings with dispersionless response from both sides. Using this knowledge we design and fabricate strong (>30dB) bidirectional dispersionless filters.
17472-17483
Zervas, Michalis N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Durkin, Michael K.
c9917856-22d8-40b0-ad28-21c484ca30ed
29 July 2013
Zervas, Michalis N.
1840a474-dd50-4a55-ab74-6f086aa3f701
Durkin, Michael K.
c9917856-22d8-40b0-ad28-21c484ca30ed
Zervas, Michalis N. and Durkin, Michael K.
(2013)
Physical insights into inverse-scattering profiles and symmetric dispersionless FBG designs.
Optics Express, 21 (15), .
(doi:10.1364/OE.21.017472).
Abstract
We revisit representative and widely used inverse-scattering fiber Bragg grating designs and shed physical insight into their characteristics. We first demonstrate numerically and experimentally that dispersionless square filters are actually dispersion compensated devices and we physically identify the spatially separated main (dispersive) reflector and dispersion compensator sections. We also look into the features of pure 2nd-order dispersion and 3rd-order dispersion compensator designs and discuss their physical importance. Finally, we use the gained physical insight to design strong symmetric gratings with dispersionless response from both sides. Using this knowledge we design and fabricate strong (>30dB) bidirectional dispersionless filters.
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e-pub ahead of print date: 15 July 2013
Published date: 29 July 2013
Organisations:
Optoelectronics Research Centre
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Local EPrints ID: 367878
URI: http://eprints.soton.ac.uk/id/eprint/367878
ISSN: 1094-4087
PURE UUID: 0e70f4e3-5eb3-4c86-b063-550c3138081c
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Date deposited: 05 Sep 2014 10:52
Last modified: 15 Mar 2024 02:42
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Author:
Michalis N. Zervas
Author:
Michael K. Durkin
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