정 윤찬 박사가 아주 잘 하고 있는 모양이군.

다음은 정 박사의 메일 일부와 관련 기사



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얼마 전 좋은 결과를 얻게 되어서 Prof David Payne (ORC

Director입니다.)을 비롯해서 다들 기뻐하고 있습니다.

(Dr Johan Nilsson이 Reader로 얼마전 승진하였고, 저희 그룹이 ORC에서 올해의

연구그룹상을 받았습니다.)

관련 기사를 인터넷을 통해 SPI에서 Press Release하였습니다. Univerisity of

Southampton에서도 비슷한 기사를 Press Release하였습니다.

그리고, 10월에 Tucson에서 열리는 LEOS에서 초청논문을 발표하기로 되었습니다.

좋은 연구를 할 수 있도록 기회를 열어 주신 교수님 은혜에 감사 드립니다.



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( BW)(SOUTHAMPTON-PHOTONICS) SPI - Single-Fiber Laser Breaks the kW Barrier



Business Editors/High-Tech Writers



SOUTHAMPTON, England--(BUSINESS WIRE)--Aug. 27, 2003--Southampton Photonics, Inc. (SPI) and the University of Southampton's Optoelectronics Research Centre (ORC) today announced a major breakthrough by demonstrating over 1kW output in a high-quality beam (M2 approx 3) from a single-fiber laser.

The team, led by Johan Nilsson, Yoonchan Jeong (at the ORC) and Ray Horley (at SPI), achieved the result in an Ytterbium-Doped Fiber Laser operating at 1090nm. The laser exhibited significantly improved beam quality compared to conventional high-power lasers and to previously reported large-core multimode fiber lasers. The new laser also exhibited extremely high efficiency (80%) relative to the launched diode-laser pump power.

As a further indication of the potential of fiber lasers to combine high beam quality and output power, the team also demonstrated a record 600W of output in a single transverse mode (M2=1.26).

David Payne, SPI's Chairman and Director of the ORC, commented: "Breaking the kW barrier with a single fiber having high beam quality is a milestone thought to be virtually unattainable just a few years ago, and now we have done it. Our high power fiber laser program team has set many world records over the past two years, but this one stands apart."

David Parker, SPI's CEO, added: "SPI will be commercializing the kW laser technology for Industrial and Aerospace applications requiring compact, reliable kW sources. We also anticipate that lasers with this level of performance will be utilized as standard building blocks for even higher power applications."

This work was funded by the Defense Advanced Research Projects Agency under their High-Power Fiber Laser Program.



"A" (Approved for Public Release, Distribution Unlimited).



Note to Editors: The M2 value is an indication of beam quality, with unity being a diffraction-limited beam. Few lasers achieve this level of perfection. High beam quality is important in many applications where precise control of the laser beam parameters, such as working distance, depth of field and spot size, is required.



About SPI (Southampton Photonics)



SPI is leading the way in the commercialization of disruptive products, with powers ranging from mWs to kWs, for the Industrial, Aerospace, Analytical, Sensing and Communications markets. The company's advanced specialty fiber technology underpins its innovations in fiber lasers (excellent beam quality), amplification and wavelength management enabling it to deliver products offering unbeatable performance and reliability combined with the lowest cost of ownership in a broad range of applications. SPI provides a "toolkit" of high power and pulsed fiber lasers, components and subsystems for OEM customers for applications from cutting and welding to marking and ablation; DFB fiber lasers and arrays for sensing and analytical applications; fiber Bragg gratings for a variety of wavelength management applications and high-power optical amplifiers and sources.