A synchronously pumped optical parametric oscillator (OPO) employing periodically poled lithium niobate (PPLN) efficiently generates diffraction-limited short pulses that are tunable in the 1.45–1.56-um spectral range, with their duration adjustable from 1 ps–15 ps and output power as high as 630 mW. The pump laser that produces these unique OPO characteristics is a 200-MHz, 2.5-W average power, diode-pumped Nd:YVO4 laser emitting at 1064 nm and passively mode locked by a nonlinear mirror (NLM) technique. One can select the output pulse width from the vanadate laser to be either 16 or 6 ps simply by choosing the appropriate NLM configuration. Significantly enhanced performance of the mode-locked Nd:YVO4 laser was obtained with a critically phase-matched type I LiB3O5 crystal. A comparison of this crystal with type II KTiOPO4 is reported.
All Solid State high repetition rate optical source tunable in wavelength and in pulse duration
AGNESI, ANTONIANGELO;LUCCA, ANDREA;REALI, GIANCARLO;TOMASELLI, ALESSANDRA
2001-01-01
Abstract
A synchronously pumped optical parametric oscillator (OPO) employing periodically poled lithium niobate (PPLN) efficiently generates diffraction-limited short pulses that are tunable in the 1.45–1.56-um spectral range, with their duration adjustable from 1 ps–15 ps and output power as high as 630 mW. The pump laser that produces these unique OPO characteristics is a 200-MHz, 2.5-W average power, diode-pumped Nd:YVO4 laser emitting at 1064 nm and passively mode locked by a nonlinear mirror (NLM) technique. One can select the output pulse width from the vanadate laser to be either 16 or 6 ps simply by choosing the appropriate NLM configuration. Significantly enhanced performance of the mode-locked Nd:YVO4 laser was obtained with a critically phase-matched type I LiB3O5 crystal. A comparison of this crystal with type II KTiOPO4 is reported.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
