The 'Advanced Photon Processing and Measurement Technology' project was started in Aug. 1997 as part of the Industrial Science and Technology Frontier Program of the Agency of Industrial Science and Technology (AIST), MITI in Japan. In the project, 13 private companies and 1 university, which are the member of RIPE, and 4 national research institutes under MITI are developing new technologies using high-quality photon beams, by challenging 6 key themes in the 3 technology fields, 'Photon generation technology,' 'Photon-applied processing technology,' and 'Photon-applied measurement technology.' In the 'Photon generation technology,' we are developing 'High- power all-solid-state laser technology,' and 'Tightly-focusing all-solid-state laser technology.' The objective of the former theme is to develop LD-pumped all-solid-state laser devices of high power (greater than or equal to 10 kW), high efficiency (greater than or equal to 20%), and compact size (laser head less than or equal to 0.05m3). Recently, we obtained 3.3 kW output power from both rod-type and slab-type Nd:YAG laser oscillators. The objective of the latter theme is to develop compact all-solid-state laser devices of high power (greater than or equal to 1 kW), high efficiency (greater than or equal to 20%), for focusing the beam on a very small area of 50 micrometer in diameter of the processing object. In this theme we are developing two types of lasers, 'a disk or cylindrical shaped fiber laser pumped by LD from surroundings' and 'a high-brightness and high-rep-rate UV all-solid-state laser with CLBO crystal.' Recently, we obtained 10 W output power from the fiber laser and 20 W UV output power using CLBO crystal.


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    Titel :

    Development of high-power all-solid-state lasers in the Japanese MITI project


    Beteiligte:
    Matsuno, Ken-ichi (Autor:in) / Sato, Toshio (Autor:in)

    Kongress:

    Advanced High-Power Lasers ; 1999 ; Osaka,Japan


    Erschienen in:

    Erscheinungsdatum :

    2000-04-03





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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