Design and fabrication of low-loss and low-crosstalk polarization-maintaining optical fibers

Sasaki, Yutaka; Hosaka, T.; Horiguchi, M.; Noda, Juichi

doi:10.1109/jlt.1986.1074850

Cited by 36 publications

(8 citation statements)

References 18 publications

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“…Polarization-maintaining fiber (PMF), which can stably preserve a state of polarization against environment influence over length, is a special single mode fiber with high birefringence which is diffusely applied into many optical fields relative to the polarization dependence, such as fiber optic gyroscopes, fiber optic sensors, laser pigtails, PMD compensators for high speed system and other polarization sensitive components [1,2] .…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of a long-length and low-loss PMF and measurement of its properties

et al. 2005

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In this paper, we describe a fabrication process of a long-length & low-loss polarization-maintaining fiber and present the measured optical properties of the polarization-maintaining fiber. The fabrication of the polarization-maintaining fiber is based on the pit-in jacket method, in which the core rod and stress application perform is fabricated by an updated PCVD process. Thus, polarization-maintaining fibers with the long-length not less than 15km can be obtained with a good longitudinal uniformity and a low-loss about 0.423dB/km@1310nm and 0.245dB/km@1550nm. The optical and geometrical properties of the polarization-maintaining fiber were measured. We also tested some special measurements. The results is well matched the specification of the present productions.

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Section: Introductionmentioning

confidence: 99%

“…At present, the structure design and fabrication process of PMF have been research so many years and results in increasingly achievements at the oversea [1,2,3] . A pit-in-jacket method becomes a typical fabrication process for PANDA PMF [3] .…”

Section: Introductionmentioning

confidence: 99%

Fabrication of a long-length and low-loss PMF and measurement of its properties

et al. 2005

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“…This leads to difficulties in splicing and connecting. Mindful of these points, design and fabrication of 200-pm diameter PANDA fiber has been investigated [3]. PANDA fiber with circular SAP's was developed using the pit-in jacket method which suppresses asymmetrical deformation in the fiber cross section and along the fiber leflgth.…”

Section: Introductionmentioning

confidence: 99%

“…The half distance between SAP's is 4 times the COB radius and the SAP diameter is 0.7 times the cladding radius. The fabricated 200-pm diameter PANDA fiber with circular SAP's has a loss of 0.22 dB/km and a crosstalk of -35 dB/km at 1.56-pm wavelength [3]. The longest PANDA fibers are 26 km long [4].…”

Section: Introductionmentioning

confidence: 99%

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Transmission loss of a 125- mu m diameter PANDA fiber with circular stress-applying parts

Tajima

Sasaki

1989

J. Lightwave Technol.

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The transmission loss of a 125-pm diameter polarizationmaintaining and absorption-reducing optical fiber (called PANDA fiber) with circular stress-applying parts (SAP's) has been investigated. The loss is calculated at a 1.55-pm wavelength for SAP'S consisting of B2O3 doped silica glasses. The experimental measurements show the validity of the analysis.It is shown that when the half distance lietween SAP's is more than 2.2 times the cbre radius, the additional transmission loss due to B203 absorption is less than 0.05 dB/km with normalized frequency of 2.2 to 2.4 and a B,O, dopant concentration of 20 mol%. As a result, it has been confirmed that transmission losses of 125-pm diameter PANDA fibers can be comparable to those of commercially available single-mode optical fibers.

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Polarization noise due to vibration of a birefringent singl‐mode fiber: Computer simulation analysis and experiment

Imai

Ohtsuka

Terasawa

1989

Electron. Comm. Jpn. Pt. I

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In optical birefringent fiber links with misaligned joint section, forced vibrations by a loudspeaker will cause the polarization state to fluctuate. If the output light from the fiber is detected through an analyzer, the “polarization noise” can be observed. As a quantitative measure, the mean value of intensity fluctuations to standard deviation, that is, the signal‐to‐noise ratio (S/N ratio), is introduced. S/N ratios are measured by varying the incident angle to linearly polarized light (α) and misalignment angle of principal axes of fibers (). If S/N ratios of various birefringent fibers (elliptical jacket, Bow‐Tie and Panda types) with α = 0 and α = 90° are compared, it is confirmed that the latter could be reduced by about 15 dB. As the degradation of the S/N ratio due to polarization noise, the intensity fluctuations of the propagating light are formulated under the assumption that the polarized coupled mode is generated at one place inside the fiber. Computer simulations are carried out to analyze fluctuation of extinction ratio and phase difference of normal modes for Gaussian probability distributions. Consequently, the analytical results are in good agreement with experimental ones of S/N ratio, for proper mean value and standard deviation. Therefore, using this method, it becomes possible to estimate the fluctuation parameters.

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Design and fabrication of low-loss and low-crosstalk polarization-maintaining optical fibers

Cited by 36 publications

References 18 publications

Fabrication of a long-length and low-loss PMF and measurement of its properties

Fabrication of a long-length and low-loss PMF and measurement of its properties

Transmission loss of a 125- mu m diameter PANDA fiber with circular stress-applying parts

Polarization noise due to vibration of a birefringent singl‐mode fiber: Computer simulation analysis and experiment

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