A broadly tunable erbium-doped fiber ring laser: experimentation and modeling

Bellemare, A.; Karbsek, M.; Riviere, Ch.; Babin, F.; He, Gang; Roy, Vincent; Schinn, G.W.

doi:10.1109/2944.924005

Cited by 116 publications

(54 citation statements)

References 12 publications

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“…Based on the homogeneously broadened two-level assumption, the high energy level is assumed to be unpopulated. The atomic population densities of the ground and metastable states, N 1 and N 2 , over EDF cross section at the ground and metastable energy levels are given by the rate equations [7,8]:…”

Section: Rate Equationsmentioning

confidence: 99%

Fiber Ring Laser Intra-cavity Absorption Spectroscopy for Gas Sensing: Analysis and Experiment

Li¹,

Liu²,

Jing³

et al. 2010

Journal of the Optical Society of Korea

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Fiber ring laser based intra-cavity absorption spectroscopic sensor has great potential for high sensitivity gas detection. Using the rate equations and propagation equations, we investigated theoretically factors that affect the sensitivity of such fiber ring laser sensors and determined the optimal design parameters and conditions for significant enhancement of the system sensitivity. Experiments have been conducted to determine the sensitivity enhancement performance. The results showed a factor of 25 ~ 30 in sensitivity enhancement in the experimental system, agreeing well with the theoretical expectations. Experiments on acetylene detection have also been carried out and the results showed that the ring cavity significantly increases the signal absorption and that high sensitivity can be obtained for gas detection. .

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Section: Rate Equationsmentioning

confidence: 99%

Fiber Ring Laser Intra-cavity Absorption Spectroscopy for Gas Sensing: Analysis and Experiment

Li¹,

Liu²,

Jing³

et al. 2010

Journal of the Optical Society of Korea

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“…However, we have verified the accuracy of the theoretical model and have shown the effects of active fiber length on the output power and tunability in an EDFRL. Compared with the previous reports [5,6], we have studied the effects of the active fiber length within a much larger range that gives much more, nearly entire details of its influences on the laser performance, and have included the effects of PIQ for the first time.…”

Section: Resultsmentioning

confidence: 99%

“…These advantages, especially the large wavelength tunability of over 100 nm, of EDFRLs have made them suitable for use as a laser source to take advantage of the L-band of EDFA for increasing the transmission capacity [7,8]. However, previous studies have shown that the tunability of EDFL depends very much on the active fiber length [5,6]. In addition, a concentration-related process called pair-induced quenching (PIQ) may significantly degrade the performance of erbium-doped fibers (EDFs) [9][10][11][12].…”

Section: Introductionmentioning

confidence: 94%

“…One of their most important advantages is the large wavelength tunable range that matches well to the gain range of the erbium-doped fiber amplifiers (EDFAs). Widely tunable erbium-doped fiber ring lasers (EDFRLs) covering both the conventional wavelength band (C-band) and long wavelength band (L-band) have recently been investigated to have large wavelength tunability, high optical signal-to-noise ratio, recently small effective linewidth (0.1~1 GHz), and excellent wavelength and power repeatability [5,6]. These advantages, especially the large wavelength tunability of over 100 nm, of EDFRLs have made them suitable for use as a laser source to take advantage of the L-band of EDFA for increasing the transmission capacity [7,8].…”

Section: Introductionmentioning

confidence: 99%

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Effects of active fiber length on the tunability of erbium-doped fiber ring lasers

Dong¹,

Shum²,

Ngo³

et al. 2003

Opt. Express

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Abstract:We numerically investigate the effects of the active fiber length on the tunability of erbium-doped fiber ring lasers for the cases of with and without pair-induced quenching (PIQ). The numerical results are confirmed by experiments. We have found that the tuning range shifts from C-band to L-band with an increase in the active fiber length. A maximum tuning range of over 100 nm, covering both the C-and L-band, can be achieved with an optimized active fiber length. It is also found that the PIQ is favorable for Lband lasing though it reduces the output power and degrades the power flatness. Using these findings, a novel method employing active fiber length switching is proposed to extend the tuning range of the laser, which is only limited by the free spectral range (FSR) of the tunable filter. A large tuning range of 102 nm is obtained using a tunable fiber Fabry-Perot filter with an FSR of 75 nm.

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“…In particular, passively Q-switched EDFLs have drawn much attention due to their potential applications in medicine, remote sensing, biomedical diagnostics, metrology, as well as in the fibre optical sensing and telecommunications mentioned above [2]. Notice that the passive Q-switching technique based on saturable absorbers (SAs) has many advantages if compared with the corresponding active techniques, in particular simplicity, compactness and flexibility [4,5]. There are a number of effects and techniques that can be used for providing passive Q-switching.…”

Section: Introductionmentioning

confidence: 99%

Q-switched erbium-doped fibre laser based on molybdenum disulfide and tungsten disulfide as saturable absorbers

Mohamed¹,

Hamida²,

Khan³

et al. 2017

Ukr. J. Phys. Opt.

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Abstract.A passively Q-switched erbium-doped fibre laser is experimentally implemented, using molybdenum disulfide (MoS 2 ) and tungsten disulfide (WS 2 ) as saturable absorbers. The results testify that a WS 2 -based Q-switched fibre laser generates more stable pulse trains, if compared with the MoS 2 -based saturable absorber. The wavelength region where the Q-switched pulses have been obtained is a so-called C-band region. The central wavelengths are 1559 and 1560 nm for MoS 2 and WS 2 , respectively.

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A broadly tunable erbium-doped fiber ring laser: experimentation and modeling

Cited by 116 publications

References 12 publications

Fiber Ring Laser Intra-cavity Absorption Spectroscopy for Gas Sensing: Analysis and Experiment

Fiber Ring Laser Intra-cavity Absorption Spectroscopy for Gas Sensing: Analysis and Experiment

Effects of active fiber length on the tunability of erbium-doped fiber ring lasers

Q-switched erbium-doped fibre laser based on molybdenum disulfide and tungsten disulfide as saturable absorbers

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