Ultrafast fiber laser produces record high power

lasertag
Credit: Pixabay/CC0 Public Domain

Researchers have developed an ultrafast fiber laser that delivers an average power more than ten times what is available from today’s high-power lasers. The technology is poised to improve industrial-scale materials processing and paves the way for visionary applications.


Michael Müller, a Ph.D. student of Prof. Jens Limpert from the Friedrich Schiller University’s Institute of Applied Physics and the Fraunhofer Institute of Institute for Applied Optics and Precision Engineering in Jena, Germany, will present the new laser at the all-virtual 2020 OSA Laser Congress to be held 12-16 October. The presentation is scheduled for Tuesday, 13 October at 14:30 EDT.

High power without the heat

In lasers, waste heat is generated in the process of light emission. Laser geometries with a large surface-to-volume ratio, such as fibers, can dissipate this heat very well. Thus, an average power of about 1 kilowatt is obtained from today’s high-power

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Revealing the reason behind jet formation at the tip of laser optical fiber

Revealing the Reason Behind Jet Formation at the Tip of Laser Optical Fiber
The observation of water jets in experiments and the schematics of the jet formation mechanism. Credit: Junnosuke Okajima, Tohoku University

When an optical fiber is immersed in liquid, a high-temperature, high-speed jet is discharged. Researchers expect this to be applied to medical treatment in the future. Now, a research team from Russia and Japan has explored this phenomenon further and revealed the reasons behind the jet formation.


Lasers using a thin optical fiber and combined with an endoscope and catheter can be easily transported into deep areas of the body or inside blood vessels. Traditionally, affected areas or lesions are removed by generating heat inside the tissue through laser absorption—a process known as the photothermal effect.

Yet, hydrodynamical phenomena, such as microbubble formation or high-speed jet generation from the optical fiber, show immense medical promise.

The process of jet formation happens when the laser is irradiated to the water, causing

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Revealing the reason behind jet formation at the tip of laser optical fiber — ScienceDaily

When an optical fiber is immersed in liquid, a high temperature, high speed jet is discharged. Researchers expect this to be applied to medical treatment in the future. Now, a research team from Russia and Japan has explored this phenomenon further and revealed the reasons behind the jet formation.

Lasers using a thin optical fiber and combined with an endoscope and catheter can be easily transported into deep areas of the body or inside blood vessels. Traditionally, affected areas or lesions are removed by generating heat inside the tissue through laser absorption — a process known as the photothermal effect.

Yet, hydrodynamical phenomena, such as microbubble formation or high-speed jet generation from the optical fiber, show immense medical promise.

The process of jet formation happens when the laser is irradiated to the water, causing the water to boil and a vapor bubble to form at the tip of the optical

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MOX Announces New Telescent Automation Technology on Its Latest Hillsboro to Portland Fiber Route

EL SEGUNDO, Calif.–(BUSINESS WIRE)–MOX Networks, LLC (“MOX”), a leading fiber-optic network specialist, announced today that it has partnered with Telescent, Inc, an innovator of physical Software-Defined Networking (SDN) at the fiber optic physical layer, to bring fiber layer automation to MOX’s new Hillsboro to Portland fiber route. Telescent’s Gen 4 Network Topology Manager (G4 NTM), a remotely controlled reconfigurable fiber optic patch-panel and cross-connect, will implement physical layer automation and virtualization for MOX customers. With their patented robotic technology in place, fiber optic connections between network devices can be provisioned, tested, and delivered without a technician dispatch (near real time) for customers at each end of MOX’s new Pacific Northwest fiber route. The G4 NTM allows MOX to reduce the service delivery interval, support customers in real time, and locate cable faults automatically should they arise.

Available as early as Q4 2020, MOX looks forward to extending this

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Optical Fiber Composite Overhead Ground Wire (OPGW) Market : Rising Trends with Top Countries Data, Technology and Business Outlook 2020 to 2026

The MarketWatch News Department was not involved in the creation of this content.

Sep 24, 2020 (The Expresswire) —
Optical Fiber Composite Overhead Ground Wire (OPGW) Market” is valued at 592 million USD in 2020 is expected to reach 808.5 million USD by the end of 2026, growing at a CAGR of 4.5% during 2021-2026, According to New Research Study. 360 Research Reports provides key analysis on the global market in a report, titled “Optical Fiber Composite Overhead Ground Wire (OPGW) Market by Types (Layer Stranding Structure OPGW, Central Tube Structure OPGW), Applications (Below 66KV, 66KV~110KV, 110KV~220KV, 220KV~330KV, 330~500KV, More than 500KV) and Region – Global Forecast to 2026” Browse Market data Tables and Figures spread through 122 Pages and in-depth TOC on Optical Fiber Composite Overhead Ground Wire (OPGW) Market.

COVID-19 can affect the global economy in three main ways: by directly affecting production and demand, by creating

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