Simultaneous generation of coherent light in the three fundamental colors by quasicylindrical ferroelectric domains in Sr[sub 0.6]Ba[sub 0.4](NbO[sub 3])[sub 2]

Romero, J. J.; Jaque, D.; Garcıa Solé, J.; Kaminskii, A. A.
November 2002
Applied Physics Letters;11/25/2002, Vol. 81 Issue 22, p4106
Academic Journal
Continuous-wave red, green, and blue coherent light has been simultaneously generated by quasiphase matching in a strontium barium niobate crystal used as an intracavity frequency converter of a Nd:YVO[SUB4] laser operating at 1.34 μm. The broad distribution of ferroelectric domain sizes (1-8 μm) provides the possibility of different simultaneous frequency conversion processes without requiring angle or temperature tuning. Blue and red colors were generated by second-harmonic generation of pump (0.88 μm) and infrared (1.34 μm) laser radiation, respectively. Green light was produced by sum frequency mixing of pump and laser radiations.


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