NDLI: Comparison of gain control techniques to stabilize EDFAs for WDM networks

Content Provider	IEEE Xplore Digital Library
Author	Shehadeh, F. Vodhanel, R.S. Gibbons, C. Ali, M.
Copyright Year	1996
Description	Author affiliation: Bellcore, Red Bank, NJ, USA (Shehadeh, F.; Vodhanel, R.S.; Gibbons, C.; Ali, M.)
Abstract	A serious problem for wavelength-division multiplexing (WDM) networks is the wavelength-dependent gain saturation of the erbium-doped fiber amplifiers (EDFAs). Because of this effect, the loss or removal of one or more channels at the input of an EDFA can cause large changes in the output powers of the remaining channels. Gain clamping, and channel equalization have been shown to be effective methods to stabilize the WDM output of the EDFAs. As an alternative solution, we have investigated EDFA gain control under multiwavelength operation, comparing different methods: (1) pump power control; (2) adding a co-propagating control signal, and (3) adding a counter-propagating control signal. The results of these three gain control methods are summarized. Very precise control of the pump power over a small range of 1.7 db was needed to keep the gain constant with the loss of one to four channels. This result reflects the sensitive dependence of the EDFA's gain on the pump power. The EDFA gain was less sensitive to the control signal power, for both co- and counter-propagating configurations. In addition, the low absolute power levels for the control signal, in the range of -15 to -10 dBm, suggests that one laser could be used to provide control signals for several EDFAs within a WDM network element.
Starting Page	190
Ending Page	191
File Size	260958
Page Count	2
File Format	PDF
ISBN	155752422X
DOI	10.1109/OFC.1996.908214
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1996-02-25
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gain control WDM networks Erbium-doped fiber amplifier Wavelength division multiplexing Optical control Power generation Power amplifiers Clamps Power control Power lasers
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
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
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

High power gain-clamped EDFAs with flat gain

Relaxation oscillations and spectral hole burning in laser automatic gain control of EDFAs

Power conversion efficiency of fluoride-based EDFAs in flat-gain operation

Dynamic gain control of booster amplifier (EDFA) using an optical supervisory channel power adjustment in WDM transmission systems

Dynamic gain-controlled erbium-doped fiber amplifier repeater for WDM network

Cascaded operation of optically gain-clamped erbium-doped fiber amplifiers with equalized gain

Fault identification for amplified WDM optical networks

Novel method of gain clamping in C-band erbium dopedfiber amplifier

Compatibility of gain-stabilized EDFAs: a simulation study

Comparison of gain control techniques to stabilize EDFAs for WDM networks

Similar Documents

High power gain-clamped EDFAs with flat gain

Relaxation oscillations and spectral hole burning in laser automatic gain control of EDFAs

Power conversion efficiency of fluoride-based EDFAs in flat-gain operation

Dynamic gain control of booster amplifier (EDFA) using an optical supervisory channel power adjustment in WDM transmission systems

Dynamic gain-controlled erbium-doped fiber amplifier repeater for WDM network

Cascaded operation of optically gain-clamped erbium-doped fiber amplifiers with equalized gain

Fault identification for amplified WDM optical networks

Novel method of gain clamping in C-band erbium dopedfiber amplifier

Compatibility of gain-stabilized EDFAs: a simulation study

Comparison of gain control techniques to stabilize EDFAs for WDM networks