High-performance amplification of coherent ~25-ns light pulses from a tunable source operating at ~840 nm with bandwidth near the fourier limit
- Orr, Brian J
- He, Yabai
- White, Richard T
- Kono, Mitsuhiko
- Baldwin, K. G. H
Publication date
January 2009
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
In this paper, we have developed a high-performance injection-seeded optical parametric oscillator (OPO) based on periodically poled KTiOPO₄ (PPKTP). Because this NLO approach does not entail population inversion and avoids associated refractive index variations, it generates narrowband tunable light pulses at ~840 nm with <5 muJ energy. These have well-characterized shot-to-shot frequency stability and minimal frequency chirp, operating near the Fourier-transform (FT) limit imposed by the pulse duration of 25 ns. It is necessary to characterize and minimize frequency chirp effects that are due to time-dependent optical phase variations during the OPO pulse and in subsequent amplification and upconversion stages.1 page(s
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