Sum frequency mixing in KTiOPO4 of the 809 nm light from a GaAlAs laser diode and the 1064 nm light from a diode‐pumped Nd:YAG laser has been used to generate blue radiation at 459 nm. The specific problems associated with the use of high‐power multimode GaAlAs diode lasers as the source of the 809 nm mixing radiation were investigated in detail. Rapid modulation of the blue output and generation of 5 ns pulses by direct modulation of the GaAlAs laser diode were demonstrated.
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© 1989 American Institute of Physics.
1989
American Institute of Physics
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