Abstract
We report a nanosecond optical parametric generator (OPG) using periodically poled lithium niobate (PPLN). The linewidth of the OPG radiation was reduced to about 500 MHz by injection seeding with Rittrow- or Rittman-type LD. Although injection seeded PPLN-OPG has been reported,1 our system has simpler wavelength tuning using telecom-type LD, and was used for gas spectroscopy.
© 2002 Optical Society of America
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