Semiconductor lasers operating in the mid-infrared between /spl lambda//spl sim/3-5 /spl mu/m are of interest for a variety of commercial and military applications. Some applications, such as infrared countermeasures, require multiwatt-class beams with near-diffraction-limited beam quality. Achieving such a high brightness beam from a single semiconductor laser has proven to be challenging at any wavelength. To achieve this goal, we are pursuing the approach of wavelength beam combining (WBC) to scale the brightness of a single laser element, which has relatively low power, by the number of elements in an array. With WBC, the beam quality of the combined beam is close to that of a single element while the power is that of the array. This is achieved by superimposing the beams from individual elements of a laser array, each operating at a different wavelength, both in the near field and far field by means of a dispersive element such as a diffraction grating. We describe the application of WBC to an array of /spl lambda//spl sim/4 /spl mu/m, broad-area, optically-pumped semiconductor lasers.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Wavelength beam combining of mid-IR semiconductor lasers


    Contributors:
    Goyal, A.K. (author) / Sanchez, A. (author) / Turner, G.W. (author) / Fan, T.Y. (author) / Liau, Z.L. (author) / Manfra, M.J. (author) / Foti, P.J. (author) / Missaggia, L. (author) / O'Brien, P. (author) / Daneu, J.L. (author)


    Publication date :

    2001-01-01


    Size :

    254147 byte





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    WQ3 Wavelength Beam Combining of Mid-IR Semiconductor Lasers

    IEEE | British Library Conference Proceedings | 2001



    Wavelength tunable semiconductor lasers

    Buus, J. / Guo li Taiwan da xue / Taiwan guang xue gong cheng xue hui | British Library Conference Proceedings | 2003


    Wavelength beam combining of laser arrays

    Augst, S.J. / Goyal, A.K. / Aggarwal, R.L. et al. | IEEE | 2003


    Wavelength Tunable Mode-Locked Semiconductor Lasers

    Miyazu, J. / Segawa, T. / Matsuo, S. et al. | IEEE | 2005