Fusion Spliceable and High Efficient Bi2O3-based EDF for Short-length and Broadband Application Pumped at 1480 nm

Spectroscopic properties of Er3+-doped Na2O–Sb2O3–B2O3–SiO2 glasses

“…Many researchers have paid much attention to heavy metal oxide glasses [4,5], phosphate glasses [6,7] and germinate glasses [8][9][10]. Especially, it has been reported that Er 3+ -doped bismuth-based glass showed large bandwidth, high emission and absorption cross-section [11,12]. Antimony and bismuth are located in the same VA group and usually show the similarity in chemical and physical properties.…”

Bismuth glass holey fibers with high nonlinearity

“…In contrast to other highly nonlinear compound glasses, bismuth glasses do not contain toxic elements such as Pb, As, Se, Te [10], and fibers made from bismuth silicate glass can be fusion-spliced to silica fibers [11], which allows easy integration with silica-based systems. In addition, bismuth silicate glass exhibits good mechanical, chemical and thermal stability, which allows low-loss fiber fabrication as demonstrated for a nonlinear fiber [12].…”

Broadband fiber lasers using bismuth-oxide-based erbium-doped fiber amplifiers

“…The insertion loss of the Bi-EDF was 0.90 dB at 1560 nm, which includes the background passive loss of 0.16 dB and the splicing losses of 0.74 dB per splicing [4]. The Bi-EDF was bi-directionally pumped with two 975 nm diodes at powers of 255 mW each.…”

“…Figure 5 shows the experimental setup of the broadband wavelength tunable, single-frequency, and singlepolarization fiber laser. A 22.7cm-long Bi-EDF was used as the gain medium [3][4][5][6]. In order to achieve single frequency oscillation along with wide wavelength tunability, two optical filters were used inside the laser cavity.…”

“…Tellurite-based Erbium-doped fiber amplifiers have a gain bandwidth of 76 nm that covers not only the conventional wavelength band (C-band) but also the long-wavelength band (L-band) [2]. Bismuth oxide (Bi 2 O 3 ) based EDFAs are also promising for broadband signal amplification around 1550 nm [3][4][5][6]. Cw signal amplification over the range of 1520-1620 nm has been demonstrated in a short length of Bi-EDFA [3].…”