Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration
A gain-clamped double-pass long wavelength band erbium-doped fiber amplifier with high clamped-gain and low noise figure is demonstrated using a ring laser. The optical circulator is used at output end of the amplifier to retro-pass the test signal back into the system for enhanced gain. A length of...
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my.um.eprints.196452018-10-11T08:19:41Z http://eprints.um.edu.my/19645/ Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration Harun, Sulaiman Wadi Md Samsuri, N. Poopalan, Prabakaran Ahmad, Harith Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering A gain-clamped double-pass long wavelength band erbium-doped fiber amplifier with high clamped-gain and low noise figure is demonstrated using a ring laser. The optical circulator is used at output end of the amplifier to retro-pass the test signal back into the system for enhanced gain. A length of forward pumped erbium-doped fiber is incorporated in front of the double-pass amplifier to achieve a low noise figure. The gain clamping is achieved by routing the backward amplified spontaneous emission into the feedback loop via optical circulator and C/L-band wavelength selective coupler to create a ring laser, which operates outside the L-band region. The gain is clamped at 10.6 dB for all input signal powers from -40 dBm to -4 dBm with a gain variation of less than ±0.4 dB, when the variable optical attenuator (VOA) is set at 0 dB. The clamped-gain level can be tuned from 10.6 to 21.6 dB by varying the VOA settings from 0 to 12 dB. The corresponding noise figure varies from 9.1 to 5.2 dB. Elsevier 2004 Article PeerReviewed Harun, Sulaiman Wadi and Md Samsuri, N. and Poopalan, Prabakaran and Ahmad, Harith (2004) Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration. Optik, 115 (11-12). pp. 525-527. ISSN 0030-4026 http://dx.doi.org/10.1078/0030-4026-00403 doi:10.1078/0030-4026-00403 |
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Q Science (General) QC Physics TK Electrical engineering. Electronics Nuclear engineering Harun, Sulaiman Wadi Md Samsuri, N. Poopalan, Prabakaran Ahmad, Harith Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration |
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A gain-clamped double-pass long wavelength band erbium-doped fiber amplifier with high clamped-gain and low noise figure is demonstrated using a ring laser. The optical circulator is used at output end of the amplifier to retro-pass the test signal back into the system for enhanced gain. A length of forward pumped erbium-doped fiber is incorporated in front of the double-pass amplifier to achieve a low noise figure. The gain clamping is achieved by routing the backward amplified spontaneous emission into the feedback loop via optical circulator and C/L-band wavelength selective coupler to create a ring laser, which operates outside the L-band region. The gain is clamped at 10.6 dB for all input signal powers from -40 dBm to -4 dBm with a gain variation of less than ±0.4 dB, when the variable optical attenuator (VOA) is set at 0 dB. The clamped-gain level can be tuned from 10.6 to 21.6 dB by varying the VOA settings from 0 to 12 dB. The corresponding noise figure varies from 9.1 to 5.2 dB. |
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Article |
author |
Harun, Sulaiman Wadi Md Samsuri, N. Poopalan, Prabakaran Ahmad, Harith |
author_facet |
Harun, Sulaiman Wadi Md Samsuri, N. Poopalan, Prabakaran Ahmad, Harith |
author_sort |
Harun, Sulaiman Wadi |
title |
Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration |
title_short |
Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration |
title_full |
Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration |
title_fullStr |
Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration |
title_full_unstemmed |
Gain control in double-pass L-band EDFA using a ring resonator and two-stage configuration |
title_sort |
gain control in double-pass l-band edfa using a ring resonator and two-stage configuration |
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Elsevier |
publishDate |
2004 |
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http://eprints.um.edu.my/19645/ http://dx.doi.org/10.1078/0030-4026-00403 |
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1643691048544763904 |
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13.159267 |