Erbium-doped silica-based planar waveguide amplifier pumped by 0.98 μm laser diodes

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Abstract
A 0.98 μm laser-diode-pumped waveguide amplifier is successfully realised by using an Er-doped silica-based planar lightwave circuit. The highest signal gain of 9.4 dB is achieved at a signal wavelength of 1.533 μm with a pump power of 99 mW, using a highly efficient erbium-doped waveguide and high power laser diodes.