Controlling the cross-section of waveguides inscribed on bulk chalcogenide glasses using fast laser

Tamilarasan Sabapathy, Gayathri Sivakumar, Arunbabu Ayiriveetil, Ajoy K. Kar, Sundarrajan Asokan

Research output: Contribution to journalArticle

Abstract

Waveguides have been fabricated on melt-quenched, bulk chalcogenide glasses using the femto-second laser inscription technique at low repetition rates in the single scan regime. The inscribed waveguides have been characterized by butt-coupling method and the diameter of the waveguide calculated using the mode-field image of the waveguide. The waveguide cross-section symmetry is analyzed using the heat diffusion model by relating the energy and translation speed of the laser. The net-fluence and symmetry of the waveguides are correlated based on the theoretical values and experimental results of guiding cross-section.

Original languageEnglish
Pages (from-to)1001-1004
Number of pages4
JournalOptoelectronics and Advanced Materials - Rapid Communications
Volume8
Issue number11-12
Publication statusPublished - 2014

Keywords

  • Integrated optics devices
  • Laser materials processing and Chalcogenide glasses
  • RATE FEMTOSECOND LASER
  • ULTRAFAST LASER
  • REPETITION-RATE
  • TRANSPARENT MATERIALS
  • HEAT ACCUMULATION
  • PULSES
  • FABRICATION

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