Journal ArticleDOI
Polarization-transparent microphotonic devices in the strong confinement limit
Tymon Barwicz,Michael R. Watts,Michael R. Watts,Miloš A. Popovi cacute,Peter T. Rakich,Luciano Socci,Franz X. Kärtner,Erich P. Ippen,Henry I. Smith +8 more
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TLDR
In this article, the first polarization-transparent add-drop filter from polarization-sensitive microring resonators is presented, which shows almost complete elimination of polarization sensitivity over the 60nm bandwidth measured, while maintaining outstanding filter performance.Abstract:
Microphotonic structures that strongly confine light, such as photonic crystals and micron-sized resonators, have unique characteristics that could radically advance technology1,2,3,4,5,6. However, such devices cannot be used in most applications because of their inherent polarization sensitivity; they respond differently to light polarized along different axes7,8,9. To take advantage of the distinctive properties of these structures, a general, integrated, broadband solution to their polarization sensitivity is needed. Here, we show the first demonstration of such a solution. It enables arbitrary, polarization-sensitive, strong-confinement (SC) microphotonic devices to be rendered insensitive (transparent) to the input polarization at all wavelengths of operation. To test our approach, we create the first polarization-transparent add–drop filter from polarization-sensitive microring resonators. It shows almost complete elimination of polarization sensitivity over the 60-nm bandwidth measured, while maintaining outstanding filter performance. This development is a milestone for SC microphotonics, allowing the applications of photonic-crystal and microring devices to several areas, including communications, spectroscopy and remote sensing.read more
Citations
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Journal ArticleDOI
Passive technologies for future large-scale photonic integrated circuits on silicon: polarization handling, light non-reciprocity and loss reduction
TL;DR: Dai et al. as mentioned in this paper presented a novel concept for realizing a polarization splitter-rotator with a very simple fabrication process, which could allow large-scale photonic integrated circuits to be built on silicon substrates.
Journal ArticleDOI
Novel concept for ultracompact polarization splitter-rotator based on silicon nanowires
Daoxin Dai,John E. Bowers +1 more
TL;DR: A novel concept for an ultracompact polarization splitter-rotator is proposed by utilizing a structure combining an adiabatic taper and an asymmetrical directional coupler, which is compatible with the standard fabrication for the regular photonic integrated circuits based on SOI nanowires.
Book
Silicon Photonics Design: From Devices to Systems
TL;DR: In this article, the authors present the state-of-the-art in the field of fabless silicon photonic systems, including the following: 1.1 Optical Waveguide Mode Solver 2.2 Wave Propagation 2.3 Optoelectronic models 2.4 Microwave Modelling 2.5 Thermal Modeling 2.6 Photonic Circuit Modelling 3.7 Physical Layout 2.8 Software Tools Integration 3.4 Code Listings 4.5 Problems 4.7 Problems 5.4 Polarization 5.5 Problem 5.6 Code List
Journal ArticleDOI
Polarization management for silicon photonic integrated circuits
TL;DR: Polarization management is very important for photonic integrated circuits (PICs) and their applications as mentioned in this paper, however, due to geometrical anisotropy and fabrication inaccuracies, the characteristics of the guided transverseelectrical (TE) and transverse-magnetic (TM) modes are generally different.
Journal ArticleDOI
A polarization-diversity wavelength duplexer circuit in silicon-on-insulator photonic wires.
TL;DR: This is the first demonstration of a functional polarization-diversity circuit implemented in SOI nanophotonic waveguides, including interfaces to single-mode fiber, and it is shown that polarization insensitive operation is achieved through a special polarization diversity approach.
References
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Journal ArticleDOI
High- Q photonic nanocavity in a two-dimensional photonic crystal
TL;DR: A silicon-based two-dimensional photonic-crystal slab is used to fabricate a nanocavity with Q = 45,000 and V = 7.0 × 10-14 cm3; the value of Q/V is 10–100 times larger than in previous studies, underlying the realization that light should be confined gently in order to be confined strongly.
Journal ArticleDOI
All-optical control of light on a silicon chip
TL;DR: The experimental demonstration of fast all-optical switching on silicon using highly light-confining structures to enhance the sensitivity of light to small changes in refractive index and confirm the recent theoretical prediction of efficient optical switching in silicon using resonant structures.
Journal Article
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TL;DR: The silicon chip has been the mainstay of the electronics industry for the last 40 years and has revolutionized the way the world operates as mentioned in this paper, however, any optical solution must be based on low-cost technologies if it is to be applied to the mass market.
Journal ArticleDOI
Active control of slow light on a chip with photonic crystal waveguides
TL;DR: An over 300-fold reduction of the group velocity on a silicon chip via an ultra-compact photonic integrated circuit using low-loss silicon photonic crystal waveguides that can support an optical mode with a submicrometre cross-section is experimentally demonstrated.
Journal ArticleDOI
Ultra-low loss photonic integrated circuit with membrane-type photonic crystal waveguides
TL;DR: The combination of an efficient two-stage coupling scheme and utilization of ultra-long (up to 2mm) photonic crystal waveguides reduces the uncertainty in determining the loss figure to 3dB/cm.
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