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  • CLEO/Europe and EQEC 2009 Conference Digest
  • (Optica Publishing Group, 2009),
  • paper CD_P26

Generation of orange light from a PPKTP waveguide end-pumped by a quantum-dot tuneable laser

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Compact coherent sources emitting at around 600 nm are in demand for applications that require amber-orange components, such as laser projection displays [1], and excitation sources for photodynamic therapy [2]. This spectral region is currently unreachable for conventional diode lasers due to a lack of suitable direct bandgap materials providing sufficient carrier confinement in the quantum wells. An attractive approach is frequency doubling of infrared light. Recently, second and third harmonic generation in periodically poled potassium titanyl phosphate (PPKTP) waveguide using an ultrashort pulse laser was demonstrated [3].

© 2009 IEEE

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