Liquid-Crystal alignment by a nanoimprinted grating for wafer-scale fabrication of tunable devices - LAAS - Laboratoire d'Analyse et d'Architecture des Systèmes Access content directly
Journal Articles IEEE Photonics Technology Letters Year : 2018

Liquid-Crystal alignment by a nanoimprinted grating for wafer-scale fabrication of tunable devices

Abstract

A simple technology is demonstrated for wafer-scale fabrication of liquid-crystal (LC) microcells that can be integrated in active optoelectronic devices. Fabrication of 1.55µm tunable Fabry-Perot optical micro-filter arrays is achieved owing to the insertion of a single nanoimprinted polymer grating dedicated to LC alignment and to the soft thermal transfer of a dry thick resist film between two highly reflective mirrors. The filter exhibits a spectral tuning range of 102nm with only 18V applied, as well as negligible internal loss, which makes it suitable for being inserted in a laser cavity. This constitutes a key step toward large-scale integration of widely-tunable photonic devices such as VCSELs using LC technology.
Fichier principal
Vignette du fichier
sadani2018.pdf (861.79 Ko) Télécharger le fichier
Origin : Files produced by the author(s)
Loading...

Dates and versions

hal-01839878 , version 1 (16-07-2018)

Identifiers

Cite

Benattou Sadani, Benjamin Boisnard, Xavier Lafosse, Thierry Camps, Jean-Baptiste Doucet, et al.. Liquid-Crystal alignment by a nanoimprinted grating for wafer-scale fabrication of tunable devices. IEEE Photonics Technology Letters, 2018, 30 (15), pp.1388-1391. ⟨10.1109/LPT.2018.2849641⟩. ⟨hal-01839878⟩
125 View
34 Download

Altmetric

Share

Gmail Facebook X LinkedIn More