Efficient low-energy near-infrared KTiOPO4 optical parametric converter

N. Srinivasan, H. Kiriyama, T. Kimura, M. Ohmi, M. Yamanaka, Y. Izawa, S. Nakai, C. Yamanaka

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)


We report a widely tunable near-infrared holosteric KTiOPO4 optical parametric converter featuring a low pump energy threshold and high conversion eff iciency. The converter uses two 10-mm-long crystals in a simple optical parametric oscillator amplif ier configuration and is tunable from 750 to 1040 nm for the signal. The pump energy threshold at 920 nm is 0.44 mJ for the 532-nm 8-ns 50-Hz input. The system produces as much as 0.45 mJ of energy at 920 nm with an external pump-to-signal energy conversion efficiency of 27% for pump inputs from just two times the threshold value. The internal pump-to-signal and idler energy conversion efficiency is estimated to be 58%. The low pump energy requirement of this system makes it compatible with small laser-diode-pumped solid-state lasers.

Original languageEnglish
Pages (from-to)1265-1267
Number of pages3
JournalOptics Letters
Issue number11
Publication statusPublished - Jun 1995
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


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