Journal ArticleDOI
Photonic crystal waveguides for coarse-selectivity devices
TLDR
In this paper, photonic crystal planar waveguides for use as wavelength-selective applications via the mini-stopband extraction mechanism are discussed and experimental data for the core of a compact demux system is presented.Abstract:
We discuss devices based on photonic crystal planar waveguides for use as wavelength-selective applications via the mini-stopband extraction mechanism. We present experimental data for the core of a compact demux system. We show that spatial and spectral behaviours are as intended from coupled-mode theory, as well as from the finite-difference time-domain approach. Finally, we propose architectures with large crosstalk and some inherent fabrication-related advantages achieved by duplicating the basic multimode waveguide and using it as a spectral filter.read more
Citations
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Journal ArticleDOI
Photonic-Crystal Demultiplexer With Improved Crosstalk by Second-Order Cavity Filtering
TL;DR: In this article, a photonic-crystal demultiplexer is implemented on a silicon-on-insulator (SoI) platform, which operates on the principle of mini-stopbands of broader waveguides.
Journal ArticleDOI
Temperature dependence of ministop band in double-slots photonic crystal waveguides
Kaiyu Cui,Yidong Huang,Gengyan Zhang,Yongzhuo Li,Xuan Tang,Xiaoyu Mao,Qiang Zhao,Wei Zhang,Jiangde Peng +8 more
TL;DR: In this article, a double-slots photonic crystal waveguides (PCWGs) structure formed by introducing two slots into PCWGs with air-bridge structure on silicon-on-insulator substrate was proposed and investigated theoretically and experimentally.
Journal ArticleDOI
Ultrasharp ministop-band edge for subnanometer tuning resolution
TL;DR: In this paper, a method that enables spectral tuning with sub-nanometer accuracy is proposed based on the transmission ministop band (MSB) in line-defect multimode photonic crystal (PhC) wav.
Journal ArticleDOI
Mini-stop bands in single heterojunction photonic crystal waveguides
TL;DR: In this paper, the spectral characteristics of mini-stop bands (MSB) in line-defect photonic crystal (PhC) waveguides and in heterostructure PhC waveguide having one abrupt interface are investigated.
Journal ArticleDOI
Hybrid photonic crystal 1.31/1.55 μm wavelength division multiplexer based on coupled line defect channels
TL;DR: In this article, a hybrid photonic crystal (PhC) 1.31/1.55μm wavelength division multiplexer (WDM) and wavelength channel interleaver with channel spacing of roughly 0.8nm between the operating wavelengths of 1.54 and 1.56μm was investigated.
References
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Journal ArticleDOI
Coupled‐Wave Theory of Distributed Feedback Lasers
H. Kogelnik,Charles V. Shank +1 more
TL;DR: In this article, an analysis of laser action in a periodic structure is presented, where the resonant frequencies and threshold criteria for the modes of oscillation have been determined for both index and gain periodicities.
Journal ArticleDOI
Real-Space Observation of Ultraslow Light in Photonic Crystal Waveguides
Henkjan Gersen,Timothy J. Karle,R.J.P. Engelen,Wim Bogaerts,Jeroen P. Korterik,N.F. van Hulst,Thomas F. Krauss,Laurens Kuipers,Laurens Kuipers +8 more
TL;DR: The huge trapping times without the use of a cavity reveal new perspectives for dispersion and time control within photonic crystals.
Journal ArticleDOI
Compact wavelength demultiplexing using focusing negative index photonic crystal superprisms.
Babak Momeni,Jiandong Huang,Mohammad Soltani,Murtaza Askari,Saeed Mohammadi,Mohammad Rakhshandehroo,Ali Adibi +6 more
TL;DR: A compact photonic crystal wavelength demultiplexing device based on a diffraction compensation scheme with two orders of magnitude performance improvement over the conventional superprism structures reported to date is demonstrated.
Journal ArticleDOI
Mini stopbands of a one dimensional system: the channel waveguide in a two-dimensional photonic crystal
Segolene Olivier,M. Rattier,Henri Benisty,Claude Weisbuch,Caleb Smith,R.M. De La Rue,Thomas F. Krauss,Ursula Oesterle,Romuald Houdré +8 more
TL;DR: In this article, a channel waveguide in a two-dimensional photonic crystal channel can be considered as a periodic one-dimensional system and the waveguide transmission was measured by detecting the guided photoluminescence of embedded InAs quantum dots excited near the guide entrance.
Journal ArticleDOI
Coupled-mode theory and propagation losses in photonic crystal waveguides.
TL;DR: It is shown that an adequate ansatz of the classical coupled-mode theory remarkably well accounts for this new phenomenon, and the fit of experimental transmission data from GaAs-based photonic crystal waveguides leads to an accurate determination of the propagation losses of both fundamental and higher, low-group-velocity modes.