Román, J.E., Hempstead, M., Brocklesby, W.S., Nouh, S. and Wilkinson, J.S.
Ion-exchanged Er/Yb waveguide laser at 1.5µm pumped by a laser diode
Electronics Letters, 31, (16), . (doi:10.1049/el:19950897).
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We demonstrate a diode-pumped, planar Er/Yb waveguide laser. The device was fabricated by thallium exchange in a phosphorus-free silicate glass. Lasing was achieved at 1544 nm with a threshold of 5 mW and a slope efficiency of 2%. The low threshold indicates the absence of the severe backtransfer effects previously reported in Er/Yb bulk laser silicate glasses.
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