Gain flattened Er3+-doped tellurite fibre amplifier for WDM signals in the 1581–1616 nm wavelength region

Mori, Ayumi; Sakamoto, Taiji; Shikano, K.; Kobayashi, K.; Hoshino, Koichi; Shimizu, Makoto

doi:10.1049/el:20000504

Cited by 32 publications

(7 citation statements)

References 5 publications

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“…Practical gain flattened Lband and extended L-band EDTFAs have been developed. 36), 37) By combining an EDTFA and a thulium doped fluoride fiber amplifier (TDFFA) in parallel, a coarse WDM amplifier was constructed for 8-channel WDM signals with 20-nm wavelength intervals thus allowing the effective use of the low loss wavelength range of installed transmission fibers around 200 nm with …”

Section: Jcs-japanmentioning

confidence: 99%

Tellurite-based fibers and their applications to optical communication networks

Mori

2008

J. Ceram. Soc. Japan

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This paper reviews tellurite-based fibers and their applications to optical communication networks. First, an investigation of tellurite-based glass and the fabrication of conventional step-index fibers and photonic crystal fibers (PCF) are described. By purifying the raw materials and employing a novel PCF fabrication process, low background losses were achieved for an Er 3+ -doped, an undoped tellurite-based fiber and a tellurite-based PCF. Second, the optical properties of Er 3+ -doped tellurite-based glass and fiber, and the gain characteristics of erbium doped tellurite fiber amplifiers (EDTFAs) were studied. A seamless, low noise and gain flattened C + L band EDTFA was realized, and an S + C + L band amplifier was constructed by combining an EDTFA and a thulium-doped fluoride fiber amplifier (TDFFA) in parallel. Third, it is confirmed that the Raman scattering characteristic of tellurite-based fiber has such a large gain coefficient and Stokes shift that it is possible achieve a wideband tellurite-based fiber Raman amplifier. To overcome several problems, a distributed/discrete hybrid tellurite-and silica-based fiber Raman amplifier (FRA) was constructed as an S + C + L band WDM repeater with a gain bandwidth of 127-nm. Fourth, Brillouin amplification and the simulated performance of slow light generation in a tellurite-based fiber were investigated. The fiber exhibits the largest time delay per unit power of 19.9 ns/mW. Finally, a carrier-envelope offset (CEO)-locked frequency comb with low fiber coupling pulse energy (230 pJ) was demonstrated by using a tellurite-based PCF. This method has the potential to lock the CEO with a lower pulse energy and thus provide a low-noise and high-accuracy optical frequency comb at telecommunication wavelengths. These tellurite-based fibers with low background loss thus offer attractive functions for applications in the optical communication field.

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Section: Jcs-japanmentioning

confidence: 99%

Tellurite-based fibers and their applications to optical communication networks

Mori

2008

J. Ceram. Soc. Japan

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“…In addition, tellurite glass has large rare-earth ion solubility and enhanced absorption and emission cross-sections due to the large refractive index of ∼2.0, making rare-earth-doped tellurite glasses very attractive materials for efficient laser emission. So far, various rare-earth-doped fiber lasers at the 1, 1.6 and 2 μm wavelength regions have been reported [46][47][48][49][50][51][52][53][54][55]. On the other hand, tellurite glass has large nonlinear refractive index (5.9 × 10 −19 m 2 /W), high thermal stability and strong corrosion resistance, making tellurite fiber an ideal medium for nonlinear wavelength conversion.…”

Section: Tellurite Fiber Lasersmentioning

confidence: 99%

“…A maximum output power of 2.5 mW at 1560 nm with a slope efficiency of 0.65% was obtained at a pump power of 500 mW. Afterwards, Er 3+ -doped tellurite fiber amplifiers were studied and investigated for the L-band signal amplification for optical communications [48,49]. Since Er 3+ -doped tellurite glass has a large emission crosssection due to the electric dipole moment transition with a large refractive index, expressed by σ e ∼ (n 2 + 2) 2 /9n, a small signal gain exceeding 20 dB over a bandwidth as wide as 80 nm including the 1.55 μm and 1.58 μm bands can be obtained with an Er 3+ -doped tellurite fiber amplifier.…”

Section: Rare-earth-doped Tellurite Fiber Lasersmentioning

confidence: 99%

Nonsilica Oxide Glass Fiber Laser Sources: Part II

Zhu¹,

Chavez‐Pirson²,

Milanese³

et al. 2018

Advances in Glass Science and Technology

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Nonsilica oxide glasses have been developed and studied for many years as promising alternatives to the most used silica glass for the development of optical fiber lasers with unique characteristics. Their main properties and compositions, alongside the optical fiber fabrication principle, have been previously reviewed in part I. This chapter will review the development of optical fiber lasers operating in the infrared wavelength region based on nonsilica glass fiber materials, either phosphate, germanate or tellurite.

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“…The lack of entire description of behavioral study of gain and NF at different configurations in the published papers will affect the fast growing of optical amplifier and reduce its effectiveness. Most of the published papers are focusing on NF and efficiency [1], gain and gain flattening [2][3][4][5], and optimization of pumping power [6] without any research papers which, focuses on the description of the complete behavioral variations and trends of EDFA gain and NF at different configurations.…”

Section: Introductionmentioning

confidence: 99%

“…All factors affecting the EDFA are needed to be elaborated and investigated to enhance the amplification outputs. Focusing on improvement of gain and noise figure, the devised and optimized configuration is to establish a wide and flat EDFA gain [2][3][4][5], and to discover an efficient EDFA at all levels. The obligation for an efficient EDFA is to fulfill the practical need of communication, with high capacity and high speed.…”

Section: Introductionmentioning

confidence: 99%

Behavioral Variations of Gain and NF Owing to Configurations and Pumping Powers

Bouzid¹

2012

OPJ

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Six configurations are proposed in this paper to explore the gain and noise figure (NF) variations under the pumping power effect. I propose a new investigation of gain and NF at different EDFA configurations. Configurations such as SPSS, DPSS, DPSSF, TPDS, TPDSF, and QPDSF are designed, investigated and compared. A continuous progress of gain values is observed from SPSS to QPDSF, and a change of NF values related to configurations is recorded. The NF variations show different behaviors at different configurations. High gain of 59.49 dB and low NF value of 4.22 dB are recorded for the QPDSF configuration and low gain and low NF are recorded for the SPSS configuration

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Gain flattened Er3+-doped tellurite fibre amplifier for WDM signals in the 1581–1616 nm wavelength region

Cited by 32 publications

References 5 publications

Tellurite-based fibers and their applications to optical communication networks

Tellurite-based fibers and their applications to optical communication networks

Nonsilica Oxide Glass Fiber Laser Sources: Part II

Behavioral Variations of Gain and NF Owing to Configurations and Pumping Powers

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