High-power VCSELs single devices aid 2-D arrays

Yanfang Sun, Yongqiang Ning, Te Li, Xiaonan Shan, Guoguang Lu, Chunfeng He, Li Qin, Changling Yan, Yun Liu, Lijun Wang

    Research output: Contribution to journalConference articlepeer-review

    Abstract

    The high power bottom-emitting vertical-cavity surface-emitting lasers (VCSELs) and laser arrays emitting at 980 nm are reported. Extensive investigations on size scaling behavior of thermal properties of single devices show limits of attainable output characteristics. The maximum continuous wave (CW) output power at room temperature of single devices with aperture size up to 500 μm is as high as 1.95 W. The key characteristics such as maximum output power, wavelength and thermal resistance are discussed. The bottom-emitting arrays of 16 elements and 200 μm aperture size of individual elements show output power of CW 1.35 W at room temperature. The far-field angle is below 17 for all driving current, which is very favorable for focusing or collmating optics.

    Original languageEnglish
    Article number60280F
    JournalProceedings of SPIE - The International Society for Optical Engineering
    Volume6028
    DOIs
    StatePublished - 2005
    EventICO20: Lasers and Laser Technologies - Changchun, China
    Duration: Aug 21 2005Aug 26 2005

    Keywords

    • 2-D arrays
    • Far-filed
    • High power
    • Output power
    • VCSELs
    • Wavelength

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