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Effective Cleaving Parameters for Multimode Gradient Index CYTOP Polymer Fiber.

Ivan Chapalo1,2, Antreas Theodosiou3, Georgii Pobegalov1

  • 1Institute of Physics, Nanotechnology and Telecommunications, Peter the Great St. Petersburg Polytechnic University, 29, Polytechnicheskaya st., 195251 St. Petersburg, Russia.

Polymers
|October 30, 2020
PubMed
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This study presents simple, low-cost methods for cleaving optical fibers using razor blades. Optimized techniques involving slow blade motion and heat up to 90°C yield superior fiber end-face quality.

Area of Science:

  • Photonics and Optical Engineering
  • Materials Science

Background:

  • High-quality optical fiber end-faces are crucial for efficient light transmission.
  • Manual cleaving methods often result in defects, impacting performance.
  • Standardized, cost-effective cleaving techniques are needed for multimode CYTOP optical fibers.

Purpose of the Study:

  • To investigate simple, low-cost, and effective methods for cleaving CYTOP optical fibers.
  • To evaluate the impact of various parameters on fiber end-face quality.
  • To establish criteria for assessing cleave quality using near-field intensity patterns.

Main Methods:

  • Experimental evaluation of different razor blade manufacturers for manual cleaving.
  • Development and testing of an automated cleaving process with controlled speed and temperature.
Keywords:
CYTOPfiber cleavefiber opticsmultimode fiberpolymer optical fiber

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  • Inspection of near-field intensity patterns to assess cleave quality.
  • Characterization of cleaving defects.

    • Main Results:

    • The necessity of near-field intensity pattern inspection for adequate evaluation was demonstrated.
    • Automated cleaving with slowed razor blade motion and elevated temperatures (up to 90°C) yielded the best fiber end-face quality.
    • Typical cleaving defects were identified and characterized.
    • Cleave quality correlated with the emitted light intensity profile.

    Conclusions:

    • Optimized manual and automated cleaving techniques using razor blades can produce high-quality CYTOP optical fiber end-faces.
    • Controlled parameters, specifically slow blade movement and heat, are key to minimizing defects.
    • Near-field intensity pattern analysis is a reliable method for evaluating cleave quality.