Journal ArticleDOI
Chip-scale dispersion engineering using chirped vertical gratings
TLDR
A strongly coupled, chirped Bragg grating made by sinusoidally modulating the sidewalls of a silicon waveguide is designed, fabricated, and experimentally characterized.Abstract:
A strongly coupled, chirped Bragg grating made by sinusoidally modulating the sidewalls of a silicon waveguide is designed, fabricated, and experimentally characterized. By varying the device parameters, the operating wavelength, device bandwidth, sign (normal or anomalous), and magnitude of group-velocity dispersion may be engineered for specific photonic applications. Asymmetric Blackman apodization is best suited for maximizing the useable bandwidth while providing good ripple suppression. Dispersion values up to 7.0 x 10(5) ps/nm/km are demonstrated at 1.55 microm.read more
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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
Narrow-band waveguide Bragg gratings on SOI wafers with CMOS-compatible fabrication process.
TL;DR: The design, fabrication and measurement of integrated Bragg gratings in a compact single-mode silicon-on-insulator ridge waveguide, and the analysis shows that the Bragg wavelength deviation is mainly caused by the wafer thickness variation.
Journal ArticleDOI
Reconfigurable radio-frequency arbitrary waveforms synthesized in a silicon photonic chip.
Jian Wang,Hao Shen,Li Fan,Rui Wu,Ben Niu,Leo T. Varghese,Yi Xuan,Daniel E. Leaird,Xi Wang,Fuwan Gan,Andrew M. Weiner,Minghao Qi +11 more
TL;DR: The on-chip optical delay elements offer an integrated approach to accurately manipulating individual radio-frequency waveform features without constraints set by the speed and timing jitter of electronics, and should find applications ranging from high-speed wireless to defence electronics.
Journal ArticleDOI
Cladding-modulated Bragg gratings in silicon waveguides.
TL;DR: A cladding-modulated Bragg grating implemented using periodic placements of silicon cylinders in the cladding along a silicon waveguide is proposed, demonstrating coupling strengths differing by an order of magnitude.
Journal ArticleDOI
Monolithic nonlinear pulse compressor on a silicon chip
TL;DR: This study reports the first demonstration of a chip-scale, nanophotonic pulse compressor on silicon, operating by nonlinear spectral broadening from self-phase modulation in a nanowire waveguide, followed by temporal compression with an integrated dispersive element.
References
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Journal ArticleDOI
Visible continuum generation in air–silica microstructure optical fibers with anomalous dispersion at 800 nm
TL;DR: In this article, the authors demonstrate experimentally that air-silica microstructure optical fibers can exhibit anomalous dispersion at visible wavelengths, and exploit this feature to generate an optical continuum 550 THz in width, extending from the violet to the infrared.
Book
Fiber Bragg Gratings
TL;DR: Kashyap et al. as mentioned in this paper presented a comprehensive treatise on fiber bragg gratings (FBGs) and addressed issues such as the merits of one solution over another; why particular fabrication methods are preferred; and what advantages a user may gain from certain techniques.
Journal ArticleDOI
Extremely Large Group-Velocity Dispersion of Line-Defect Waveguides in Photonic Crystal Slabs
TL;DR: Waveguiding characteristics and group-velocity dispersion of line defects in photonic crystal slabs as a function of defect widths reveal that they can be tuned by controlling the defect width, and the results agree well with theoretical calculations, indicating that light paths with made-to-order dispersion can be designed.
Journal ArticleDOI
Nanotaper for compact mode conversion.
TL;DR: It is shown that the micrometer-long silicon-on-insulator-based nanotaper coupler is able to efficiently convert both the mode field profile and the effective index, with a total length as short as 40 microm, during compact mode conversion between a fiber and a submicrometer waveguide.
Journal ArticleDOI
Broad-band optical parametric gain on a silicon photonic chip
Mark A. Foster,Amy C. Turner,Jay E. Sharping,Bradley S. Schmidt,Michal Lipson,Alexander L. Gaeta +5 more
TL;DR: Net on/off gain over a wavelength range of 28 nm is demonstrated through the optical process of phase-matched four-wave mixing in suitably designed SOI channel waveguides, allowing for the implementation of dense wavelength division multiplexing in an all-silicon photonic integrated circuit.