NDLI: Variable gain equalizer using magneto-optics

Content Provider	IEEE Xplore Digital Library
Author	Wada, S. Abe, S. Ota, Y. Reichman, B. Imura, T. Daza, C.A.
Copyright Year	2002
Description	Author affiliation: Eng. Dept., FDK Corp., Shizuoka, Japan (Wada, S.; Abe, S.; Ota, Y.)
Abstract	The variable gain equalizer proposed operates based on varying the combined spectral shape of two filters. The spectral shape can be changed by a variable optical splitter based on magneto-optics. Experimental results show that spectral shape can be changed using the proposed variable gain equalizer set-up. The spectral tilt varied approximately +/-0.07 dB/nm within a driving current of 0 to 70 mA on the variable optical splitter. Simulation results show possible spectral output using different filter shapes (sinusoidal like). Flexibility in obtaining different spectral shapes can be attained by the proposed variable gain equalizer. The initial filters can be changed to attain an initial output spectrum and the variable optical splitter is used to vary the output spectrum to the desired final shape. Other advantages of this no-moving-parts design are reliability over those that rely on mechanical components and its ability to continuously and rapidly change the output spectrum.
Sponsorship	IEEE/Commun. Soc. IEEE/Lasers & Electro-Opt. Soc. Opt. Soc. America
Starting Page	324
Ending Page	326
File Size	276282
Page Count	3
File Format	PDF
ISBN	1557527016
DOI	10.1109/OFC.2002.1036392
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-03-17
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Optical Society of America
Subject Keyword	Gain Equalizers Insertion loss Propagation losses Diffraction Collimators Band pass filters Optical propagation Mirrors Lenses
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
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8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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