High pumping-efficiency and wideband L-band erbium-doped fiber ASE source using two-stage double-pass backward pumping configuration

Benrui Zheng; Wencai Huang

doi:10.1117/12.825080

21 August 2009 High pumping-efficiency and wideband L-band erbium-doped fiber ASE source using two-stage double-pass backward pumping configuration

Benrui Zheng, Wencai Huang

Author Affiliations +

Proceedings Volume 7423, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI; 74230S (2009) https://doi.org/10.1117/12.825080
Event: SPIE Optical Engineering + Applications, 2009, San Diego, California, United States

Abstract

We present a wideband and high pumping-efficiency L-band erbium-doped fiber (EDF) amplified spontaneous emission (ASE) source using a two-stage double pass backward (DPB) pumping configuration.DPB configuration has been proved to have a high pumping-efficiency. In this paper we use a two-stage DPB pumping configuration to generate a stable L-band ASE source for the first time. The source consists of two sections of EDF, a 1480nm pumping laser diode (LD) which is divided into two portions to pump two sections of EDF separately. By using a power splitter, the pumping power of two stages can be adjusted proportionally. The effects of EDF length and pump power arrangement on the output characteristics of L-band ASE spectrum, output power and mean wavelength are theoretically investigated. The results show that the pumping-conversion efficiency and the linewidth can be improved significantly by optimizing the fiber length ratio and pump ratio of the two-stage DPB configuration. Based on former work, the total fiber length is chosen at 19m in this paper. With the total fiber length fixed, the proposed source has a high pumping efficiency of 53%, an output power of 111mW, and a broadening linewidth of 49nm with the mean wavelength at 1580.18nm under the optimizing fiber ratio of 0.842 and pump power ratio of 0.5.

Citation Download Citation

Benrui Zheng and Wencai Huang "High pumping-efficiency and wideband L-band erbium-doped fiber ASE source using two-stage double-pass backward pumping configuration", Proc. SPIE 7423, Nonimaging Optics: Efficient Design for Illumination and Solar Concentration VI, 74230S (21 August 2009); https://doi.org/10.1117/12.825080

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KEYWORDS

L band

Superluminescent sources

Wavelength division multiplexing

Fiber amplifiers

Fiber optic gyroscopes

Semiconductor lasers

Dense wavelength division multiplexing

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