Transmission of 43-Gb/s optical signals through a single-mode polymer waveguide for LAN-WDM

Author(s):  
Satoshi Suda ◽  
Takayuki Kurosu ◽  
Akihiro Noriki ◽  
Takeru Amano
1999 ◽  
Vol 11 (7) ◽  
pp. 848-850 ◽  
Author(s):  
R. Moosburger ◽  
R. Hauffe ◽  
U. Siebel ◽  
D. Arndt ◽  
J. Kropp ◽  
...  

2021 ◽  
Vol 39 (2) ◽  
pp. 547-556
Author(s):  
Sho Yakabe ◽  
Hitomi Matsui ◽  
Yui Kobayashi ◽  
Yuki Saito ◽  
Ken Manabe ◽  
...  

1995 ◽  
Author(s):  
Richard S. Lytel ◽  
Janelle M. Freeman ◽  
S. Gutierrez ◽  
George F. Lipscomb ◽  
John I. Thackara ◽  
...  

Author(s):  
Salil Pradhan ◽  
John Arbulich ◽  
K. Srihari

In metro and long haul networking applications, Erbium Doped Fiber Amplifiers (EDFAs) are used to amplify weak optical signals. Manufacturing of EDFAs is primarily a fusion splicing process in which both Single Mode Fibers (SMFs) and Erbium Doped Fibers (EDFs) are utilized. One of the critical operations is the splicing of an SMF to an EDF, a dissimilar fiber splicing process. Splice losses between these fibers need to be optimized, and the process is highly reliant on the properties of the EDF. Mode Field Diameter (MFD), spectral attenuation at peak wavelength and concentration of erbium along its length vary from batch to batch. The splice loss is dependent on some of these properties and must be taken into consideration. With this background, research was conducted to study the properties of EDFs and its applicability in the splicing process. Having considered the characteristics of the EDF in different wavelength regions, experiments were designed to optimize the losses between an SMF and an EDF. In the C-band (1525–1565 nm), erbium atoms absorb most of the transmitted power (in absence of a 980/1480 nm laser pump). Splice losses measured in these regions are dependent upon the absorption properties and would not depict a true picture of the splice loss. Since the incident power is absorbed, an alternate approach would be to launch extremely low power (<−27 dBm). In this case, the absorption losses should be minimal. As C-band is highly absorptive, launching power in the range of 1310 nm would be another possible scenario. The ‘cutback’ method was also employed to determine the losses in the C-band region. Statistical methods such as the Design of Experiments (DOE) were used to study the properties of the EDF and its response to various splicing parameters and wavelengths. Splice loss trends at various power levels were also investigated. The primary intent of these experiments was to translate the results and their utility into the manufacturing of EDFAs, wherein a multitude factors creep into the splicing scenario. The best method would be the one that consistently yields a low splice loss, since these are critical to minimize the noise figure of the EDFA.


2018 ◽  
Vol 17 (3) ◽  
pp. 10-12
Author(s):  
Mohd Haniff Ibrahim ◽  
Mohd Rashidi Salim ◽  
Muhammad Yusof Mohd Noor ◽  
Norazan Mohd Kassim

In this paper, graphene oxide (GO) was doped into SU-8 polymer to examine the functionalities of polymer waveguide material via dopant inclusion. In material preparation, step by step processes starting from cyclopentanone mixing will be explained. It is shown that doped material's refractive index can be tailored by having different weight percentage of GO. Finally, a single mode ridge waveguide loss of GO doped SU-8 has been characterized to be 1.9 dB/cm at 1550 nm wavelength.


2017 ◽  
Vol 40 (8) ◽  
pp. 2607-2610
Author(s):  
Botao Wang ◽  
Qi Wang ◽  
Lingxin Kong ◽  
Riqing Lv

A graphene oxide-polymethylmethacrylate (GO-PMMA) microfiber sensor is proposed and experimentally demonstrated in this paper, which is based on the absorption principle of near infrared spectra for external refractive index sensing. The sensor was fabricated by splicing a section of 1 mm GO-PMMA between two tapered single mode fibers. The hydrophilic groups of graphene oxide can be used to measure the proportion of water in glycerol solution, and achieve the goal of refractive index measurement indirectly. Experiments were conducted for moisture content of 4.3%~45% (refractive index range from 1.3400 to 1.4054) in glycerin solution. Different concentrations of glycerol solution have different intensities of absorption peaks near 1530 nm wavelength. The absorption peak power near 1530 nm wavelength responses to the external refractive index was experimentally studied. The results show that the sensor possesses a high sensitivity of 167.39 dB/RIU in the refractive index range of 1.34~1.41 and has a good linearity response to external refractive index. The proposed sensor is attractive owing to its high measurement speed, accurate, no pollution and lower cost, and is suited for long-term online real-time measurement.


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