Effective fabrication of Long Period Gratings by the use of microlens array

Michael S Y Liu, Hwa Yaw Tam, Wei Chong Du

Research output: Journal article publicationConference articleAcademic researchpeer-review

2 Citations (Scopus)


A new method for fabricating Long Period Grating (LPG) using a microlens array is introduced. Instead of blocking the excimer laser beam, this new method convergences the UV laser beam into an intensity modulated profile and the writing efficiency is improved. This method enables shorter grating writing time and also suitable for batch production of LPGs, thus providing an efficient method with potential in the mass production of LPGs.
Original languageEnglish
Pages (from-to)301-305
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 1 Dec 1998
EventProceedings of the 1998 International Conference on Applications of Photonic Technology, ICAPT - Ottawa, Canada
Duration: 29 Jul 199831 Jul 1998

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics


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