Hybrid mode-locked, diode-pumped Nd:Gd_0.7Y_0.3VO₄ laser

Abstract

A Nd:Gd 0.7 Y 0.3 VO 4 crystal is grown in laser quality. The crystal is diode-pumped at 808 nm. When operated in a Z-shaped resonator with an acousto-optical modulator in combination with a Kerr lens, it produces pulses of 1.7 ps at 140 MHz repetition rate.

Synchronously pumped intracavity YLF–Nd–KGW picosecond Raman lasers and LiF:F–2amplifiers

“…Note, that regarding the compression of SRS pulses to ∼ 2 ps, the peak power of intensive Stokes pulses of the YLF-KGW laser more than five times exceeds one for corresponding pump laser pulses. Note that obtained in the investigated laser 2 ps pulse width is more typical for lasers, which operate in CW passive ML regime with generation of pulses with essentially lower power [1].…”

Orthogonally dual-polarization passively mode-locking operation of Nd:La0.25Gd0.75VO4 crystal

“…The FWHM of the autocorrelation trace is about 3.7 ps. If a sech 2 pulse profile is assumed, the actual FWHM of the mode locked pulses is 2.2 ps, which is close to 1.7 ps the shortest pulse obtained with Nd 3 þ doped vanadate crystal (Nd:Gd 0.7 Y 0.3 VO 4 ) [17]. The central wavelength of the pulses is at 1064 nm with a FWHM of 0.91 nm, corresponding to Δυ¼250 GHz.…”

“…The mixed crystal Nd:La 0.5 Gd 0.5 VO 4 , which was the earliest mixed vanadate crystal grown by Ostroumov in 1995 [15], has emission spectra with a FHWM of 5.3 and 4.8 nm for the s and π polarization states at 1.06 μm, respectively. They are much broader than those of the [16][17][18][19], we speculate that the series of mixed Nd:La x Gd 1 À x VO 4 crystals should also had excellent mode locking performance. Up to now, however there has been no mode locking reported for the mixed crystals of Nd:La x Gd 1 À x VO 4 , especially the mode locking laser with different polarization states.…”

Continuous-wave and passively Q-switched laser performance of Nd:(LaxGd1-x)3Ga5O12crystal at 1062 nm

“…Up to now, considerable attentions have been devoted to searching for the novel high-quality laser crystals and optimizing the properties of current ones. Many Nd-doped laser crystals, such as Nd:YAG, Nd:YVO 4 , Nd:LuVO 4 , Nd:GdVO 4 , and so on, have been proved to be excellent crystal materials suitable for diode pumped solid state laser both at continuous-wave (CW) and Q-switching operations [1][2][3][4][5][6][7]. Compared with other crystals, Nd:GGG crystal has attracted more and more attentions for its ex-cellent performances, such as excellent thermal conductivity, low laser pump threshold, good mechanic properties, and large thermal capacity, etc.…”