Abstract

We theoretically and experimentally demonstrate that the bandwidth in a nondegenerate optical parametric amplifier can be substantially increased by noncollinear interaction in a quasi-phase-matched single-periodicity structure. Broadband amplification of signals between 1540 and 1720 nm was realized in periodically poled ${\mathrm{KTiOPO}}_4$. The achieved signal bandwidth of 6.9 THz at 1680 nm is large enough to accommodate sub-100 fs optical pulses.

© 2005 Optical Society of America

Optical parametric amplification in periodically poled KTiOPO₄ seeded by an Er–Yb:glass microchip laser

J. Hellström, G. Karlsson, V. Pasiskevicius, and F. Laurell
Opt. Lett. 26(6) 352-354 (2001)

Broadband infrared generation with noncollinear optical parametric processes on periodically poled LiNbO₃

Chih-Wei Hsu and C. C. Yang
Opt. Lett. 26(18) 1412-1414 (2001)

3 dB squeezing by single-pass parametric amplification in a periodically poled KTiOPO₄ crystal

T. Hirano, K. Kotani, T. Ishibashi, S. Okude, and T. Kuwamoto
Opt. Lett. 30(13) 1722-1724 (2005)

Widely and continuously tunable optical parametric oscillator based on a cylindrical periodically poled KTiOPO₄ crystal

Jean-Philippe Fève, Olivier Pacaud, Benoît Boulanger, Bertrand Ménaert, Jonas Hellström, Valdas Pasiskevicius, and Fredrik Laurell
Opt. Lett. 26(23) 1882-1884 (2001)

Broadly tunable picosecond narrowband pulses in a periodically-poled KTiOPO₄ parametric amplifier

M. Tiihonen, V. Pasiskevicius, and F. Laurell
Opt. Express 14(19) 8728-8736 (2006)