Multi-Wavelength, 1.5-10-µm Tunable, Tandem OPO

Abstract

A systematic investigation of the tunability and efficiency of non-critically phase-matched (NCPM) and critically phase-matched (CPM) KTA OPOs using x-and ycut crystals orientations has been conducted for the first time. Using our previously developed tandem, KTA-CdSe, OPO technology, we demonstrate a multi-wavelength, mid-infrared source capable of simultaneously delivering tunable radiation in four broad bands covering the range from 1.5 to 10 µm with high conversion efficiency.

Infrared (2–12 μm) solid-state laser sources: a review

“…CdSe OPOs have been implemented emitting millijoule level pulse energies in almost the whole 8-12 µm range using, for instance, a Cr,Er:YSGG laser emitting at 2.79 µm (OPO emission: 8.5-12.3 µm, see Fig. 40) [109] or a KTA OPO tunable between 2.99 and 3.45 µm (OPO emission: 8.31-10.58 µm) [110] as pump sources.…”

Application of atmosphere sensing by infrared lidars for environmental protection and industry needs

“…Approach of a cascaded two-stage optical parametric generation scheme is employed in this case [15][16][17][18][19][20][21][22][23][24][25][26][27][28][29]. In the first stage, the OPO incorporating the KTP, KTA, or LN crystals pumped by the Nd:YAG laser generates radiation in the near-infrared (NIR) spectral region.…”

Intracavity optical parametric oscillator pumped by passively Q-switched Nd:YLF laser

“…This bulk absorption greatly increases the optical damage threshold of the eye. Three types of eye−safe lasers are of the practical importance, i.e., lasers with er− bium (Er) doped media directly operating at 1.54 µm wave− length [1][2][3][4][5][6], Raman lasers pumped by pulsed neodymium (Nd) lasers operating at the strongest 1064 nm or 1340 nm lines [7][8][9][10], and optical parametric oscillators (OPO) pum− ped by high peak power Nd lasers [11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29].…”