Design of MEMS-based SiO 2 Waveguides on Quartz Substrate for Evanescent Field-based Saturable Absorbers

Changhyun Jung, Ikjun Hong, Minjae Lee, Jinho Lee, Ju Han Lee, Dong Il Dan Cho

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A saturable absorber is a key device for Q-switching, mode-locking, or Q-switched mode-locking pulsed laser. D-shaped fiber is commonly used to interact evanescent field for saturable absorption. However, reproducibility of D-shaped fiber is restricted due to its manual fabrication process. Microelectromechanical system (MEMS) fabrication can be a solution in terms of reproducibility and precise fabrication. This paper presents a MEMS-based silicon dioxide (SiO 2 ) waveguide on quartz substrate for applying to evanescent field-based saturable absorbers. An SiO 2 waveguide on quartz substrate is designed with consideration of MEMS fabrication limitations. The refractive indexes of fabricated device are measured. Under the measured refractive indexes, dimensions of the SiO 2 waveguide are determined to satisfy the waveguide condition at the wavelength of 1550 nm. Simulation results show that the designed waveguide has desirable beam propagation properties.

Original languageEnglish
Title of host publication9th International Conference on Information and Communication Technology Convergence
Subtitle of host publicationICT Convergence Powered by Smart Intelligence, ICTC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages725-728
Number of pages4
ISBN (Electronic)9781538650400
DOIs
StatePublished - 16 Nov 2018
Event9th International Conference on Information and Communication Technology Convergence, ICTC 2018 - Jeju Island, Korea, Republic of
Duration: 17 Oct 201819 Oct 2018

Publication series

Name9th International Conference on Information and Communication Technology Convergence: ICT Convergence Powered by Smart Intelligence, ICTC 2018

Conference

Conference9th International Conference on Information and Communication Technology Convergence, ICTC 2018
Country/TerritoryKorea, Republic of
CityJeju Island
Period17/10/1819/10/18

Keywords

  • MEMS
  • SiO waveguide
  • saturable absorber

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