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Speciality Single Mode Optical Fibers

Fujikura's speciality single mode optical fibers include radiation resistant fibers and heat resistant fibers. Each of them operates with good transmission performance under high dose radiation or at high temperatures.

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Features

[Radiation Resistant Single Mode Optical Fiber]

Fujikura's advanced Radiation Resistant Single Mode Optical Fiber Type B (RRSMFB) shows the following advantages in comparison with the conventional pure silica product of Radiation Resistant Single Mode Fiber Type A (RRSMFA) of Fujikura.

  • The transmission loss level is lower under radiation environment.
  • The transmission loss reaches very fast to its saturation level after the start of radiation irradiation.
  • The transmission loss recovers very fast to its lowest level after the stop of radiation irradiation.

* The data shown are samples, not guaranteed as the specification of the products.

* Characteristics of each product depends on the production lot, irradiation conditions, and environment conditions etc. It is highly recommended that the test and evluation is performed under the conditions of the applications by a customer.

* The products refered above (i.e., Radiation Resistant Optical fibers) are Control Items of Export Trade Contol Order.

[Heat Resistant Single Mode Optical Fiber]

Film materials improve the long term heat resistance of optical fibers extremely.

  • Acrylate resin coating enables heat resistqnce upto 60℃
  • Polyimide coating enables heat resistance upto 300℃

Applications

Speciality single mode optical fibers are utilized for data communication and optical sensing to monitor systems under harsh environments as follows;

  • Nuclear Power Plant
  • Particle Experiment Facility
  • High Temperature Reactor
  • Oil and Gas Facility

Etc.

Specifications

Radiation Resistant Single Mode Optical Fiber (RRSMFB)

Items

units

Specifications

Operating Wavelength

μm

1.3

Transmission Loss (@1310nm)

dB/km

≤0.6

Transmission Loss (@1550nm)

dB/km

≤0.5

Cut-offwavelength (FiberCut-off)

nm

≤1290

Mode Field Diameter (@1310nm)

μm

8.6 +/- 0.7

Cladding Diameter

μm

125 +/- 1

Coating Diameter

μm

245 +/- 5

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