Single-transverse-mode Ti:sapphire rib waveguide laser

C. Grivas, D.P. Shepherd, T.C. May-Smith, R.W. Eason, M. Pollnau

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    Laser operation of Ti:sapphire rib waveguides fabricated using photolithography and ion beam etching in pulsed laser deposited layers is reported. Polarized laser emission was observed at 792.5 nm with an absorbed pump power threshold of 265 mW, which is more than a factor of 2 lower in comparison to their planar counterparts. Measured beam propagation factors $M^{2}_{x}$ and $M^{2}_{y}$ of 1.3 and 1.2, respectively, indicated single-transverse-mode emission. A quasi-cw output power of 27 mW for an absorbed pump power of 1W and a slope efficiency of 5.3% were obtained using an output coupler of 4.6% transmission with a pump duty cycle of 8%.
    Original languageEnglish
    Pages (from-to)210-215
    Number of pages6
    JournalOptics express
    Issue number1
    Publication statusPublished - 10 Jan 2005


    • IOMS-APD: Advanced Photonic Devices


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