Multiplexing and tuning of a double set of resonant modes in optical microtube cavities monolithically integrated on a photonic chip

In this Letter, we experimentally demonstrate a monolithic integration of two vertically rolled-up microtube resonators (VRUMs) on polymer-based 1×5 multimode interference waveguides to achieve 3D multi-channel coupling. In this configuration, different sets of resonant modes are simultaneously exci...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2018-10, Vol.43 (19), p.4703-4706
Main Authors: Madani, Abbas, Naz, Ehsan Saei Ghareh, Harazim, Stefan, Kleinert, Moritz, Yin, Yin, Ma, Libo, Schmidt, Oliver G
Format: Article
Language:English
Subjects:
Configurations
Coupling
Multiplexing
Photonics
Refractivity
Sensitivity
Signal processing
Tuning
Waveguides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this Letter, we experimentally demonstrate a monolithic integration of two vertically rolled-up microtube resonators (VRUMs) on polymer-based 1×5 multimode interference waveguides to achieve 3D multi-channel coupling. In this configuration, different sets of resonant modes are simultaneously excited at S-, C-, and L- telecom bands, demonstrating an on-chip multiplexing, based on a vertical-coupling configuration. Moreover, the resonant wavelength tuning and consequently the overlapping of resonant modes are accomplished via covering the integrated VRUMs by liquid. A maximum sensitivity of 330 nm/refractive index unit is achieved. The present work would be a critical step for the realization of massively parallel optofluidic sensors with higher sensitivity and flexibility for signal processing, particularly in a 3D-integrated photonic chip.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.43.004703