학술논문
Increasing the numerical aperture of waveguides in Gorilla glass® for smartphone applications
Document Type
Conference
Source
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC, 2017 Conference on). :1-1 Jun, 2017
Subject
Language
Abstract
Improving smartphones to offer increased utility is of great interest to users. Some devices like SPR sensors [I] or photonics crystal biosensor [2] have been demonstrated but these devices need a lot of hardware added-on to the phone, are not integrated and consume additional space. Our approach is to use a 750 μm thick smartphone protective glass and write photonic structures in it. We have already demonstrate a low loss single mode waveguide which have been use to build a Mach-Zehnder based temperature sensor [3]. One problem with these waveguides is the low refractive index change, around 10 −5 , which gives us a numerical aperture of 0.008 limiting the device prospects inside the bulk glass.