High-power erbium-doped fiber amplifier pumped by wavelength multiplexed semiconductor laser diode unit

Tashiro, Yoshio; Tachibana, H.; Fujisaki, Akira; Ogoshi, Haruki

doi:10.1109/ofc.1997.719734

Cited by 5 publications

(7 citation statements)

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“…From the theoretical and experimental analysis, the PCE results of 1480-nm pumped amplifiers are better, as compared to those of 980-nm pumped amplifiers [10,11]. However, the experimental PCEs are highly dependent on the optimization of the design itself.…”

Section: Resultsmentioning

confidence: 99%

Single-mode pumping scheme for EDFA with high-power conversion efficiency using a 980-NM Ti:S laser

Mahdi

Adikan

Ahmad

2005

Microw. Opt. Technol. Lett.

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In this paper, we demonstrate a high‐power erbium‐doped fiber amplifier pumped by single‐mode titanium sapphire (Ti:S) laser at 980 nm. The highest output power of 22.6 dBm is measured at 1549 nm with an input signal power of 4 dBm and a pump power of 300 mW. This corresponds to power‐conversion efficiency (PCE) of 60%, providing 95% quantum efficiency. The experimental results show the feasibility of using a single‐mode laser from a high‐power semiconductor chip to produce high‐efficiency booster amplifiers. © Wiley Periodicals, Inc. Microwave Opt Technol Lett 48: 71–74, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21264

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Section: Resultsmentioning

confidence: 99%

Single-mode pumping scheme for EDFA with high-power conversion efficiency using a 980-NM Ti:S laser

Mahdi

Adikan

Ahmad

2005

Microw. Opt. Technol. Lett.

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“…Several studies [7][8][9][10] have suggested that another mechanism for the suppression of Er 3+ ion concentration quenching exists: the co-doping of the fiber core with another type of REE, particularly lanthanum and ytterbium. In this case, apparently, a portion of the clusters that are formed consist of different rare earth ions, whose energy levels do not coincide, and Er 3+ ions are separated inside the clusters by a second type of rare earth ions (e.g.…”

Section: Introductionmentioning

confidence: 99%

Effect of ytterbium co-doping on erbium clustering in silica-doped glass

et al. 2015

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The effect of ytterbium co-doping on erbium ion clustering in silica-based glass was studied. It was experimentally shown that the pump-to-signal conversion efficiency could be significantly increased if the number of Yb 3+ ions in the fiber core was 20 times higher than the number of Er 3+ ions. Estimations of the number of Er 3+ ions in clusters confirmed a decrease in their clustering at high Yb concentrations.

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“…The CW lasers, pumped by semiconductor laser diodes, provide low power (<0 dBm) or medium power (10-20 dBm) for modern wavelength-division multiplexed systems. Recent studies have shown that high-power (>20 dBm to tens of watts) erbium-doped fiber lasers may be achieved by employing a pump laser diode array [11]. However, employing a pump diode array may cause cost-inefficiencies for the overall system if the pump conversion efficiency is low.…”

Section: Introductionmentioning

confidence: 99%

“…The power of the pump source is split via a fiber coupler (FC2) into two paths and then go to the two wavelength-division multiplexers (WDM1 and WDM2), respectively, to pump the EDFs as shown. The existence of an optimal pump splitting ratio for achieving the maximal efficiency is explained as follows: a previous work has shown that the pump conversion efficiency for high-power erbium-doped amplifier (EDFA) may reach 76% or higher [11,20]. Comparing such a high efficiency with 30-40% pump conversion efficiency for erbium-doped fiber lasers, one may come up with an idea that the most appropriate pump scheme for the proposed MOPA laser is to allocate a majority of the total pump power to the booster amplifier and a minority of the total pump power to the fiber laser cavity.…”

Section: Introductionmentioning

confidence: 99%