Increasing repeater span in high-speed bidirectional WDM transmission systems using a new bidirectional EDFA configuration

F. Khaleghi; J. Li; M. Kavehrad; Hyung Kim

doi:10.1109/68.531853

Increasing repeater span in high-speed bidirectional WDM transmission systems using a new bidirectional EDFA configuration

F. Khaleghi, J. Li, M. Kavehrad, Hyung Kim

Research output: Contribution to journal › Article › peer-review

24 Scopus citations

Abstract

When fiber-optic systems contain erbium-doped fiber amplifiers (EDFA), reflections are enhanced by the gain of the amplifiers and severe system performance degradations and bit-error-rate (BER) floors can be observed. This provides a very restrictive limit on the usable amplifier gain. We present a new configuration for a bidirectional EDFA that allows for a significantly higher maximum allowable gain while introducing a very small BER penalty. A 2.5 Gb/s, 300 Km bidirectional wavelength-division multiplexing (WDM) transmission experiment using the new bidirectional EDFA is reported. Experimental results show that allowable gain of the new EDFA is significantly increased while the associated BER penalty remains negligible.

Original language	English (US)
Pages (from-to)	1252-1254
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	8
Issue number	9
DOIs	https://doi.org/10.1109/68.531853
State	Published - Sep 1996

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/68.531853

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title = "Increasing repeater span in high-speed bidirectional WDM transmission systems using a new bidirectional EDFA configuration",

abstract = "When fiber-optic systems contain erbium-doped fiber amplifiers (EDFA), reflections are enhanced by the gain of the amplifiers and severe system performance degradations and bit-error-rate (BER) floors can be observed. This provides a very restrictive limit on the usable amplifier gain. We present a new configuration for a bidirectional EDFA that allows for a significantly higher maximum allowable gain while introducing a very small BER penalty. A 2.5 Gb/s, 300 Km bidirectional wavelength-division multiplexing (WDM) transmission experiment using the new bidirectional EDFA is reported. Experimental results show that allowable gain of the new EDFA is significantly increased while the associated BER penalty remains negligible.",

author = "F. Khaleghi and J. Li and M. Kavehrad and Hyung Kim",

note = "Funding Information: Manuscript received April 29, 1996; revised May 23, 1996. This work was supported by the Telecommunications Research Institute of Ontario (TRIO), Photonics Networks and Systems Thrust. F. Khaleghi, J. Li, and M. Kavehrad are with the University of Ottawa, Ottawa ON KIN 6N5 Canada. H. Kim is with the Bell-Northern Research Ltd., Ottawa ON KIY 4H7 Canada. Publisher Item Identifier S 1041-1135(96)06553-6.",

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AU - Li, J.

AU - Kavehrad, M.

AU - Kim, Hyung

N1 - Funding Information: Manuscript received April 29, 1996; revised May 23, 1996. This work was supported by the Telecommunications Research Institute of Ontario (TRIO), Photonics Networks and Systems Thrust. F. Khaleghi, J. Li, and M. Kavehrad are with the University of Ottawa, Ottawa ON KIN 6N5 Canada. H. Kim is with the Bell-Northern Research Ltd., Ottawa ON KIY 4H7 Canada. Publisher Item Identifier S 1041-1135(96)06553-6.

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N2 - When fiber-optic systems contain erbium-doped fiber amplifiers (EDFA), reflections are enhanced by the gain of the amplifiers and severe system performance degradations and bit-error-rate (BER) floors can be observed. This provides a very restrictive limit on the usable amplifier gain. We present a new configuration for a bidirectional EDFA that allows for a significantly higher maximum allowable gain while introducing a very small BER penalty. A 2.5 Gb/s, 300 Km bidirectional wavelength-division multiplexing (WDM) transmission experiment using the new bidirectional EDFA is reported. Experimental results show that allowable gain of the new EDFA is significantly increased while the associated BER penalty remains negligible.

AB - When fiber-optic systems contain erbium-doped fiber amplifiers (EDFA), reflections are enhanced by the gain of the amplifiers and severe system performance degradations and bit-error-rate (BER) floors can be observed. This provides a very restrictive limit on the usable amplifier gain. We present a new configuration for a bidirectional EDFA that allows for a significantly higher maximum allowable gain while introducing a very small BER penalty. A 2.5 Gb/s, 300 Km bidirectional wavelength-division multiplexing (WDM) transmission experiment using the new bidirectional EDFA is reported. Experimental results show that allowable gain of the new EDFA is significantly increased while the associated BER penalty remains negligible.

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Increasing repeater span in high-speed bidirectional WDM transmission systems using a new bidirectional EDFA configuration

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