Mechanism for stable, ultra-flat multiwavelength operation in erbium-doped fiber lasers employing intensity-dependent loss

Xinhuan Feng; Chao Lu; Hwa Yaw Tam; Ping Kong Alexander Wai; D. Y. Tang; Bai Ou Guan

doi:10.1016/j.optlastec.2011.05.022

Mechanism for stable, ultra-flat multiwavelength operation in erbium-doped fiber lasers employing intensity-dependent loss

Xinhuan Feng
, Chao Lu
, Hwa Yaw Tam
, Ping Kong Alexander Wai
, D. Y. Tang
, Bai Ou Guan

The Hong Kong Polytechnic University

Research output: Journal article publication › Journal article › Academic research › peer-review

30 Citations (Scopus)

Abstract

We study a mechanism to attain stable and ultra-flat multiwavelength oscillations in erbium-doped fiber lasers (EDFLs). The key concept is to introduce intensity-dependent loss (IDL) into the laser cavity, which can effectively suppress the mode competition in the homogeneously broadened gain medium and ensure a uniform power distribution over wavelengths via the gain-clamping effect. The technique was successfully demonstrated by employing a nonlinear optical loop mirror (NOLM) in erbium-doped fiber laser cavity. Based on the experimental results, further experimental investigation and theoretical analysis are carried out to show the effectiveness of the gain-clamping mechanism in realizing the multiwavelength operation of the EDFL.

Original language	English
Pages (from-to)	74-77
Number of pages	4
Journal	Optics and Laser Technology
Volume	44
Issue number	1
DOIs	https://doi.org/10.1016/j.optlastec.2011.05.022
Publication status	Published - 1 Feb 2012

Keywords

Gain-clamping effect
Intensity-dependent loss (IDL)
Multiwavelength erbium-doped fiber laser (EDFL)

ASJC Scopus subject areas

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

More information

10.1016/j.optlastec.2011.05.022

Cite this

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title = "Mechanism for stable, ultra-flat multiwavelength operation in erbium-doped fiber lasers employing intensity-dependent loss",

abstract = "We study a mechanism to attain stable and ultra-flat multiwavelength oscillations in erbium-doped fiber lasers (EDFLs). The key concept is to introduce intensity-dependent loss (IDL) into the laser cavity, which can effectively suppress the mode competition in the homogeneously broadened gain medium and ensure a uniform power distribution over wavelengths via the gain-clamping effect. The technique was successfully demonstrated by employing a nonlinear optical loop mirror (NOLM) in erbium-doped fiber laser cavity. Based on the experimental results, further experimental investigation and theoretical analysis are carried out to show the effectiveness of the gain-clamping mechanism in realizing the multiwavelength operation of the EDFL.",

keywords = "Gain-clamping effect, Intensity-dependent loss (IDL), Multiwavelength erbium-doped fiber laser (EDFL)",

author = "Xinhuan Feng and Chao Lu and Tam, \{Hwa Yaw\} and Wai, \{Ping Kong Alexander\} and Tang, \{D. Y.\} and Guan, \{Bai Ou\}",

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T1 - Mechanism for stable, ultra-flat multiwavelength operation in erbium-doped fiber lasers employing intensity-dependent loss

AU - Feng, Xinhuan

AU - Lu, Chao

AU - Tam, Hwa Yaw

AU - Wai, Ping Kong Alexander

AU - Tang, D. Y.

AU - Guan, Bai Ou

PY - 2012/2/1

Y1 - 2012/2/1

N2 - We study a mechanism to attain stable and ultra-flat multiwavelength oscillations in erbium-doped fiber lasers (EDFLs). The key concept is to introduce intensity-dependent loss (IDL) into the laser cavity, which can effectively suppress the mode competition in the homogeneously broadened gain medium and ensure a uniform power distribution over wavelengths via the gain-clamping effect. The technique was successfully demonstrated by employing a nonlinear optical loop mirror (NOLM) in erbium-doped fiber laser cavity. Based on the experimental results, further experimental investigation and theoretical analysis are carried out to show the effectiveness of the gain-clamping mechanism in realizing the multiwavelength operation of the EDFL.

AB - We study a mechanism to attain stable and ultra-flat multiwavelength oscillations in erbium-doped fiber lasers (EDFLs). The key concept is to introduce intensity-dependent loss (IDL) into the laser cavity, which can effectively suppress the mode competition in the homogeneously broadened gain medium and ensure a uniform power distribution over wavelengths via the gain-clamping effect. The technique was successfully demonstrated by employing a nonlinear optical loop mirror (NOLM) in erbium-doped fiber laser cavity. Based on the experimental results, further experimental investigation and theoretical analysis are carried out to show the effectiveness of the gain-clamping mechanism in realizing the multiwavelength operation of the EDFL.

KW - Gain-clamping effect

KW - Intensity-dependent loss (IDL)

KW - Multiwavelength erbium-doped fiber laser (EDFL)

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U2 - 10.1016/j.optlastec.2011.05.022

DO - 10.1016/j.optlastec.2011.05.022

M3 - Journal article

SN - 0030-3992

VL - 44

SP - 74

EP - 77

JO - Optics and Laser Technology

JF - Optics and Laser Technology

IS - 1

ER -

Mechanism for stable, ultra-flat multiwavelength operation in erbium-doped fiber lasers employing intensity-dependent loss

Abstract

Keywords

ASJC Scopus subject areas

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