Simultaneous, multiple wavelength lasing of (Er, Nd):Y3Al5O12

Abstract

A low threshold, room temperature 1.64 μm Yb:Er:Y3Al5O12 waveguide laser J. Appl. Phys. 76, 7651 (1994); 10.1063/1.357939Optical spectra of undoped and rareearth(=Pr, Nd, Eu, and Er) doped transparent ceramic Y3Al5O12

Nonradiative De-excitation Mechanisms in Long-Lived Erbium(III) Organic Compounds ErxY1-x[(p-CF3-C6F4)2PO2]3

“…The proposed mechanism is described in Figure . An erbium ion in the 4 I 13/2 excited-state promotes a surrounding excited ion to a higher excited state . The promoted ion then relaxes nonradiatively to the first excited-state or to the ground-state via excitation migration or transfer to the ligand, or two excited ions could sensitize the ligand cooperatively.…”

Simultaneous Dual-Wavelength Laser Operation in Co-Doped (Ho,Tm):KLu(WO4)2 Crystal

“…Simultaneous dual-wavelength lasing has been demonstrated in numerous solid-state laser materials, examples with rare earths include co-doped systems and lasing of two different ions such as (Er,Nd):YAG (2.9 µm from Er and 1.06 µm from Nd) [1], (Ho,Nd):YAG (3.0 µm from Ho and 1.06 µm from Nd) [2], (Cr,Er,Tm,Ho):YAG (2.1 µm from Ho and 2.9 µm from Er) [3] or singly doped crystals operating on different transitions of the same ion such as Nd:YVO 4 (1064 and 1342 nm) [4]. Little attention has been paid, however, to dual wavelengh operation with the (Ho,Tm) co-doped system (1.9 µm from Tm and 2.1 µm from Ho) although Tm has often been used as sensitizer for Ho-doped materials.…”

High power Nd:YAG lasers operating at 1.3μm wave band

“…[6], a Nd:YAG rod was pumped by a laser diode-sidepumping module, and as high as 131 W and 109 W CW lasers at 1319 nm single wavelength and 1319 nm and 1338 nm simultaneous dual wavelength, respectively, were achieved at the pumping power of 555 W. Flash-lamppumped or diode-pumped, pulsed or CW multi-wavelength laser operations in Nd 3+ doped materials, such as Nd:YAG [4,[6][7][8], Nd:YLF [9], Nd:YVO 4 [10,11], (Er, Nd):YAG [12], (Ho, Nd):YAG [13], Nd:GdVO 4 [14], and Nd:YAP [15,16], have been previously reported. In this paper, through calculating the simultaneous dual wavelength threshold condition, coating the laser cavity at different wavelengths precisely and increasing Nd 3+ ions doping level and the length of Nd:YAG rod, we successfully developed three types of high power 1.3 lm wave band Nd:YAG quasi continuous wave (QCW) lasers pumped with a Kr-lamp.…”