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microresonators News
More Efficient Microcombs on the Road to Commercialization
GOTHENBURG, Sweden, Sept. 25, 2023 — Researchers at Chalmers University have developed a method to make microcombs 10 times more efficient, opening pathways to discovery in space and health care, and paving the way for high-performance lasers in a range of technologies. The team has...
Silicon Photonics Enable Next-Generation Quantum Devices
GAITHERSBURG, Md., April 11, 2023 — Researchers at the National Institute of Standards and Technology (NIST) have greatly improved the efficiency and power output of a series of chip-scale devices that generate laser light at different colors while using the same input laser source....
High-Efficiency Frequency Comb Invites Range of Optical Endeavors
CAMBRIDGE, Mass., Sept. 16, 2022 — On-chip laser frequency combs are a promising technology for applications including environmental monitoring, optical computing, astronomy, and metrology. However, the inability to design an on-chip laser frequency comb that is both efficient and...
High-Precision Dual-Comb Sensing Method Keeps Compact Footprint
CHANGCHUN, China, May 5, 2022 — Dual-comb photothermal spectroscopy (DC-PTS), demonstrated for the first time by a joint team from the Chinese University of Hong Kong and the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), could provide a highly sensitive...
Microresonator Increases Strength of Light-matter Interactions
AMHERST, Mass., Feb. 7, 2022 — Researchers at the University of Massachusetts Amherst, the University of Maryland, and the National Institute of Standards and Technology (NIST) built an on-chip microresonator that strengthens light-matter interactions without losing optical...
On-Chip Laser Light Generates Spectrum of Colors
GAITHERSBURG, Md., Oct. 16, 2020 — National Institute of Standards and Technology (NIST) and University of Maryland researchers demonstrated the ability to convert invisible near-infrared laser light into multiple visible colors, using newly introduced microchip technology. The...
Stanford Scientists Trap and Redirect Light with Resonant Nanoantennas
STANFORD, Calif., Sept. 1, 2020 — Researchers in the lab of professor Jennifer Dionne at Stanford University have structured ultrathin silicon chips into nanoscale bars to resonantly trap light, and then release or redirect it later. “We’re essentially trying to trap...
‘Whispering-Gallery’ Effect Enhances Optical Pulses
GÖTTINGEN, Germany, July 13, 2020 — Researchers in Germany have proven that when electrons are grouped with an optical whispering-gallery mode (WGM) inside a tiny sphere, the resulting pulses gain strength, similar to how audio waves move in a dome. Thanks to the interchange of energy...
Perfect Soliton Crystals Boost Performance of Microresonators
LAUSANNE, Switzerland, Sept. 10, 2019 — École Polytechnique Fédérale de Lausanne (EPFL) scientists have bypassed light-bending losses that can occur when light pulses exit an optical microresonator, and have uncoupled the pulse repetition rate from the microresonator size by generating...
Backstory: VCSEL Breakthrough, 1989
Jun 2, 2019 — Thursday, May 11, 1989 It was the first test of our first attempt to fabricate VCSELs. They lit up! Thousands of VCSELs on a crumb-size chip lased readily with low threshold currents (1s of mA), the smallest lasers in the world. The original ~6-...
Visible-Telecom Entangled Photon Pairs Could Support Quantum Communication
GAITHERSBURG, Md., March 1, 2019 — A photon pair source that can bridge the visible and telecom bands could be useful for transporting quantum communications over optical fibers. However, the optical components that store and process quantum information typically require...
Optical Approach Delivers Fast, Scalable Data Transmission
KARLSRUHE, Germany, June 14, 2017 — Microresonator soliton frequency combs have been shown to considerably increase the performance of wavelength division multiplexing (WDM) techniques in optical communications. The technology could be used to develop efficient, highly scalable...
Intensity Increases With Loss in Microlaser
ST. LOUIS, Oct. 16, 2014 — Increasing energy loss in a laser system could actually enhance its energy, performance and efficiency.
Catching photons in a bottle
MAINZ, Germany – Physicists at Johannes Gutenberg University have developed a bottle-shaped, monolithic microresonator that captures light and tunes it to arbitrary optical frequencies. To do this, they stretched a glass fiber until it reached about half the...
(14 results found)
May 2024
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