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Suppressing EDFA Transient Effects Using Polarization Multiplexing

delete2025-12-01
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PRE
AI
Y
Yang Li
S
Shifeng Liu *
M
Mingzhen Liu
C
Changlong Du
潘时龙 (Shilong Pan)
DOI:10.1109/LPT.2025.3605680delete
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Abstract

Abstract

En 中文
A novel method for suppressing transient effects in an erbium-doped fiber amplifier (EDFA) is proposed and experimentally demonstrated. By employing polarization multiplexing, an amplitude-fluctuating signal and its amplitude-complementary counterpart are simultaneously modulated onto two orthogonal polarization states of the optical carrier. As a result, the total power of the optical carrier remains stable, even though it carries an amplitude-varying signal. Consequently, when this signal is transmitted through an optical link that includes an EDFA, the transient effects of the EDFA are effectively suppressed. In a proof-of-concept experiment, pulse signals with various repetition rates and duty cycles were transmitted without distortion after amplification by the EDFA using the proposed scheme. The proposed approach is applicable to periodic control signals, pulsed single-frequency signals, and wideband pulsed waveforms in EDFA-based optical links, which are essential for radio-over-fiber and microwave photonic systems.
Keywords:
Polarization multiplexing
erbium-doped fiber amplifier
suppressing transient effect
Polarization multiplexing
erbium-doped fiber amplifier
suppressing transient effect

Journal

I
IEEE Photonics Technology Letters
IF:
2.5
Papers:
273
Citations:
1.5W

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