Optimum fibre parameters of low-loss single-mode optical fibres for use in 1.55μm-wavelength region

Design Considerations for 1.55 μm Loss Minimized 1.3 μm Zero-Dispersion Single-Mode Optical Fiber Submarine Cables

“…Conventional optical fibers with zero-dispersion in the 1.3μηι wavelength exhibit chromatic dispersion in the 1.55um region of about 15-20ps/km · nm [9,10]. Accordingly, the system design for considering chromatic dispersion characteristics of the fibers are essential, and the combinations of optical laser sources and optical fibers are key points for the long haul optical fiber systems design in 1.55μιη wavelength regions.…”

“…For the purpose of determining the optimum fiber parameters, the following requirements are useful [9,10]: (b) To suppress loss increase due to OH formation [10,11], there can be no lattice defects near the core, which concentrates the electromagnetic field distribution. For the purpose of determining the optimum fiber parameters, the following requirements are useful [9,10]: (b) To suppress loss increase due to OH formation [10,11], there can be no lattice defects near the core, which concentrates the electromagnetic field distribution.…”

Fiber Length Dependence of Polarization Mode Dispersion Measurements in Long-Length Optical Fibers and Installed Optical Submarine Cables

“…In order to investigate the variations of the PMD and The fiber length dependence of the PMD measurements in the cascaded 1.55 μιη wavelength loss minimized cutoff shift fiber (CSF, CCITT G.654 Fiber) [20] wound on 28 cm diameter drums (o) are shown in Fig. 9.…”

Dynamic polarization fluctuation characteristics of optical fiber submarine cables under various environmental conditions

“…12 [26]. A nonarmoured 3-divided steel pipe structure cable [25] for 1.55-pm transmission systems with cable coupling and repeater hausing as used; total length was about 120 m. The optical fiber unit [24] was composed of 6 single-mode fibers [23] with three fiber pairs spliced to each other at the cable B-end. All fibers were spliced in the cable coupling; total fiber length was about 720 m long.…”

“…The self-heterodyned beat signals were mixed with a Ge-APD using the directional fiber coupler. In the experiment, 1.55-pm loss minimized pure-silica core/F-doped cladding single-mode optical fibers [23] were used. The typical fiber parameters of mode field diameter at 1.55 pm, effective cutoff wavelength, relative refractive index difference, fiber loss at 1.55 pm, and dispersion at 1.55 pm were about 10.5 pm, 1.45 pm, 0.33 percent, 0.18 (dB/km), and 19 ps/kmnm, respectively.…”