Journal ArticleDOI
Ultrahigh-quality-factor silicon-on-insulator microring resonator
TLDR
The development of ultrahigh-quality-factor (Q) silicon-on-insulator (SOI) microring resonators based on silicon wire waveguides is presented, illustrating that in addition to low propagation losses the critical coupling condition is essential for optimizing device characteristics.Abstract:
The development of ultrahigh-quality-factor Q silicon-on-insulator (SOI) microring resonators based on silicon wire waveguides is presented. An analytical description is derived, illustrating that in addition to low propagation losses the critical coupling condition is essential for optimizing device characteristics. Propagation losses as low as 1.9±0.1 dB/cm in a curved waveguide with a bending radius of 20 µm and a Q factor as high as 139.000±6.000 are demonstrated. These are believed to be the highest values reported for a curved SOI waveguide device and for any directly structured semiconductor microring fabricated without additional melting-induced surface smoothing.read more
Citations
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Integrated optofluidics: A new river of light
TL;DR: Some of the exciting developments so far in miniaturized optofluidic platforms bring fluid and light together and exploit their microscale interaction for a large variety of applications are overviewed.
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12.5 Gbit/s carrier-injection-based silicon micro-ring silicon modulators
TL;DR: A scheme for achieving high-speed operation for carrier-injection based silicon electro-optical modulator, which is optimized for small size and high modulation depth is shown.
Journal ArticleDOI
Silicon microring resonators with 1.5-microm radius.
TL;DR: In this paper, a junction between a silicon strip waveguide and an ultra-compact silicon microring resonator is demonstrated, which minimizes spurious light scattering and increases the critical dimensions of the geometry.
Journal ArticleDOI
Electro–optically tunable microring resonators in lithium niobate
TL;DR: In this paper, the first realization of optical microring resonators in submicrometre thin films of lithium niobate was reported, where high-index contrast films were produced by an improved crystal-ion-slicing and bonding technique using benzocyclobutene.
Journal ArticleDOI
High-contrast gratings for integrated optoelectronics
TL;DR: High Contrast gratings (HCGs) as mentioned in this paper are a class of planar optics with a large refractive index contrast, which can be designed top-down based on intuitive guidelines.
References
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Journal ArticleDOI
Ultra-high-Q toroid microcavities on a chip
TL;DR: This work demonstrates a process for producing silica toroid-shaped microresonators-on-a-chip with Q factors in excess of 100 million using a combination of lithography, dry etching and a selective reflow process, representing an improvement of nearly four orders of magnitude over previous chip-based resonators.
Journal Article
Optical microcavities : Photonic technologies
TL;DR: Optical microcavities confine light to small volumes by resonant recirculation as discussed by the authors, and are indispensable for a wide range of applications and studies, such as long-distance transmission of data over optical fibres; they also ensure narrow spot-size laser read/write beams in CD and DVD players.
Journal ArticleDOI
Silicon-based optoelectronics
TL;DR: In this article, a review of Si-based photonic components and optoelectronic integration techniques, both hybrid and monolithic, is presented, with a focus on column IV materials (Si, Ge, C and Sn).
Journal ArticleDOI
Ultra-compact Si-SiO 2 microring resonator optical channel dropping filters
Brent E. Little,James Foresi,Günter Steinmeyer,E.R. Thoen,Sai T. Chu,Hermann A. Haus,Erich P. Ippen,Lionel C. Kimerling,Wayne Greene +8 more
TL;DR: In this paper, a compact optical channel dropping filter incorporating side-coupled ring resonators as small as 3 /spl mu/m in radius is realized in silicon technology.
Journal ArticleDOI
High-Q measurements of fused-silica microspheres in the near infrared.
TL;DR: The observed independence of Q from wavelength indicates that losses for the WGM's are dominated by a mechanism other than bulk absorption in fused silica in the near infrared.