Second harmonic modulation in potassium niobate Journal Articles uri icon

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abstract

  • AbstractWe consider potassium niobate as a medium for room‐temperature second‐harmonic generation at 430 nm and electro‐optic modulation in a single crystal. Modulation voltages of the order of 60 V are needed to fully switch the second harmonic for an electric field applied along the crystal c axis and modulation frequencies in the megahertz range. Although the electro‐optic coefficient for a field applied along the crystal b axis is 10 times larger than for the c‐axis modulation, the voltage required is three times higher. A laser‐diode‐pumped source of high‐frequency intensity‐modulated blue laser light may find application for undersea communication.

authors

  • Boothroyd, SA
  • Chrostowski, J
  • Lian, H‐X
  • Rawicz, A
  • Deen, Jamal

publication date

  • November 1991