Photosensitivity study of GeS2 chalcogenide glass under femtosecond laser pulses irradiation

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


The present study discusses the photosensitivity of GeS2 chalcogenide glass in response to irradiation with femtosecond pulses at 1047 nm. Bulk GeS2 glasses are prepared by conventional melt quenching technique and the amorphous nature of the glass is confirmed using X-ray diffraction. Ultrafast laser inscription technique is used to fabricate the straight channel waveguides in the glass. Single scan and multi scan waveguides are inscribed in GeS2 glasses of length 0.65 cm using a master oscillator power amplifier Yb doped fiber laser (IMRA mu jewel D400) with different pulse energy and translation speed. Diameters of the inscribed waveguides are measured and its dependence on the inscription parameters such as translation speed and pulse energy is studied. Butt coupling method is used to characterize the loss measurement of the inscribed optical waveguides. The mode field image of the waveguides is captured using CCD camera and compared with the mode field image of a standard SMF-28 fibers.

Original languageEnglish
Title of host publication International Conference on Optical and Photonic Engineering (icOPEN 2015)
EditorsAnand K. Asundi, Yu Fu
Number of pages7
Publication statusPublished - 2015
Event3rd International Conference on Optical and Photonic Engineering - Singapore, Singapore
Duration: 14 Apr 201516 Apr 2015

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


Conference3rd International Conference on Optical and Photonic Engineering
Abbreviated titleicOPEN 2015


  • Direct laser writing
  • chalcogenide glass
  • waveguides


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