Single-Mode And Single-Polarization Photonics With Anchored-Membrane Waveguides

Abstract

An integrated photonic platform with "anchored-membrane" structures, the T-Guide, is proposed, numerically investigated, fabricated and characterized. These compact air-clad structures have high index contrast and are much more stable than prior membrane-type structures. Their semi-infinite geometry enables single-mode and single-polarization (SMSP) operation over unprecedented bandwidths. Modal simulations quantify this behavior, showing that an SMSP window of 2.75 octaves (1.2-8.1 μm) is feasible for silicon T-Guides, spanning almost the entire transparency range of silicon. Dispersion engineering for T-Guides yields broad regions of anomalous group velocity dispersion, rendering them a promising platform for nonlinear applications such as wideband frequency conversion. Cut-back measurements of fabricated silicon T-guides at λ = 3.64 μm show low propagation losses of 1.75 ± 0.3 dB/cm.

Publication Date

8-22-2016

Publication Title

Optics Express

Volume

24

Issue

17

Number of Pages

19337-19343

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OE.24.019337

Socpus ID

84991056243 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84991056243

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