Thermal Characterization of the Birefringence of Nematic Liquid Crystals for the Design of Widely-tunable LC-VCSELs - LAAS - Laboratoire d'Analyse et d'Architecture des Systèmes Access content directly
Conference Papers Year : 2020

Thermal Characterization of the Birefringence of Nematic Liquid Crystals for the Design of Widely-tunable LC-VCSELs

Abstract

In this work, the thermo-optical properties of nematic liquid crystals are investigated through localized reflectance spectra measurements performed on a tunable LC-filter. The final aim is to insert such LC in the cavity of a tunable VCSEL device, in which local self-heating due to optical or electrical pumping must be taken into account. We demonstrate that, whereas standard LC E7 is not suited for real device operation, the maximal operating temperature of QYDPLC-36 LC is 95°C, with a birefringence at 1.55 μm higher than 0.18 at 60°C.
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Dates and versions

hal-03007221 , version 1 (16-11-2020)

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Andrea Simaz, Benjamin Boisnard, Thierry Camps, Jean-Baptiste Doucet, Benjamin Reig, et al.. Thermal Characterization of the Birefringence of Nematic Liquid Crystals for the Design of Widely-tunable LC-VCSELs. 2020 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD), Sep 2020, Turin, Italy. pp.73-74, ⟨10.1109/NUSOD49422.2020.9217648⟩. ⟨hal-03007221⟩
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