chanelink logo
CHANELINK
日本語

Scientists build high-power cladding-pumped Raman fiber laser in 1.2 μm band

348
2024-01-31 13:58:14
翻訳を見る

Laser sources operating in the 1.2 μm band have some unique applications in photodynamic therapy, biomedical diagnostics, and oxygen sensing. In addition, they can be used as pump sources for mid-infrared optical parameter generation and visible light generation through frequency doubling.

Laser generation in the 1.2 μm band has been achieved by different solid-state lasers, including semiconductor lasers, diamond Raman lasers, and fiber lasers. Among these three types, fiber lasers are an excellent choice for generating 1.2 μm band lasers due to their simple structure, good beam quality, and flexible operation.

Researchers led by Professor Pu Zhou from the National University of Defense Technology in China are interested in high-power fiber lasers in the 1.2μm band. Most of the current high-power fiber lasers are ytterbium-doped fiber lasers in the 1 μm band, and the maximum output of the 1.2 μm band is limited to 10 watts.

Their research, titled "High-Power Tunable Raman Fiber Laser in the 1.2 μm Band," was published in Frontiers in Optoelectronics.

Their idea is to use the stimulated Raman scattering effect in passive optical fibers to obtain high-power laser generation in the 1.2μm band. The stimulated Raman scattering effect is a third-order nonlinear effect that converts photons to longer wavelengths.

By exploiting the stimulated Raman scattering effect in phosphorus-doped optical fiber, the researchers converted the high-power ytterbium-doped fiber in the 1 μm band to the 1.2 μm band. A Raman signal with a power of 735.8 W was obtained at 1252.7 nm, which is the highest output power ever reported for a 1.2 μm band fiber laser.

Source: Laser Network


関連のおすすめ

  • AWOL Vision will showcase cutting-edge laser projectors and award-winning innovations at CEDIA 2023

    AWOL Vision has announced that it will be showcasing the latest innovations in home entertainment at this year's CEDIA Expo in Denver, Colorado from September 7-9.At the show, AWOL Vision will debut the new LVV-3000 Pro and LVV-3500 Pro laser projectors with Dolby Vision and Control4 integration, and will showcase the latest Vanish TV, The TV recently received the prestigious "IFA 2023 Best of the...

    2023-09-08
    翻訳を見る

  • Edmund Optics acquisition son－x

    Recently, globally renowned optical component manufacturer Edmund Optics announced that the company has acquired ultrasonic assisted systems and high-precision optical manufacturer son-x.Edmund Optics, as a leader in optical technology solutions, has been serving various fields such as life sciences, biomedicine, industrial testing, semiconductors, and laser processing since its establishment in 1...

    01-22
    翻訳を見る

  • The United States has successfully developed a full 3D printed electric spray engine

    The fully 3D printed electric spray engine is suitable for small satellite in orbit maneuver, and its production cost is only a small part of that of traditional thrusters.Image source: Massachusetts Institute of Technology, USAThe Massachusetts Institute of Technology team recently demonstrated an electric spray engine made entirely of 3D printing technology, which can be propelled by emitting ...

    02-20
    翻訳を見る

  • WEC acquires precision laser cutting giant Laser Profiles Ltd

    Recently, WEC Group, a leading engineering and manufacturing company in the UK, announced that it has completed the acquisition of Laser Profiles Ltd, a precision laser cutting leader in Bournemouth. For over 40 years, WEC Group has been providing manufacturing, laser cutting, precision machining, waterjet cutting, powder coating, and CCTV installation solutions.The company stated that the acqui...

    2024-08-19
    翻訳を見る

  • Fujitsu collaborates to research and develop multi band wavelength fiber optic transmission technology

    Recently, Fujitsu and KDDI research company have successfully developed a high-capacity multi band wavelength multiplexing transmission technology using installed optical fibers.The new technology of the two companies can transmit wavelengths beyond the C-band by using batch wavelength conversion and multi band amplification technology.Expanding transmission capacity in remote areasTwo companies h...

    2023-12-05
    翻訳を見る