Photoinduced second-harmonic generation in rare-earth-doped aluminosilicate optical fibers

1991 ◽  
Vol 16 (21) ◽  
pp. 1650 ◽  
Author(s):  
D. M. Krol ◽  
J. R. Simpson
Keyword(s):  
Rare Earth ◽  
Second Harmonic Generation ◽  
Optical Fibers ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Rare Earth Doped

Photoinduced Second Harmonic Generation in Optical Fibers: Materials and Mechanisms

1991 ◽  
Vol 244 ◽  
Author(s):  
D. M. Krol ◽  
J. R. Simpson ◽  
D. J. DiGiovanni ◽  
R. M. Atkins ◽  
P. J. Lemaire ◽  
...  
Keyword(s):  
Rare Earth ◽  
Second Harmonic Generation ◽  
Optical Fibers ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Rare Earth Ions ◽  
Defect States ◽  
Silica Fibers

ABSTRACTPermanent X(2) gratings can be written in doped silica fibers by coherent irradiation with light at ω and 2ω. The X(2) gratings give rise to phase-matched second harmonic generation (SHG), i.e. subsequent irradiation of the prepared fiber with light at ω results in an output at 2ω. The efficiency with which the gratings can be written depends on the nature and concentration of defect states induced by dopants in the, glass. We present results for fibers doped with Ge and rare earth ions and discuss the implications of our results for the various mechanisms that have been proposed to explain photoinduced SHG in fibers.

Two rare-earth-based quaternary chalcogenides EuCdGeQ4 (Q = S, Se) with strong second-harmonic generation

2019 ◽  
Vol 48 (47) ◽  
pp. 17620-17625 ◽  
Author(s):  
Wenhao Xing ◽  
Naizheng Wang ◽  
Yangwu Guo ◽  
Zhuang Li ◽  
Jian Tang ◽  
...  
Keyword(s):  
Rare Earth ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Melting Behavior ◽  
Band Gaps ◽  
Metal Chalcogenides ◽  
Congruent Melting ◽  
Nlo Materials

Two RE-based quaternary metal chalcogenides EuCdGeQ4 (Q = S, Se) are discovered. They possess many attractive properties as preferred IR NLO materials including large band gaps, phase-matched intense SHG and congruent melting behavior.

Seeded second-harmonic generation in optical fibers: the effect of phase fluctuations

1991 ◽  
Vol 16 (4) ◽  
pp. 211 ◽  
Author(s):  
D. M. Krol ◽  
R. H. Stolen ◽  
H. W. K. Tom ◽  
M. M. Broer ◽  
K. T. Nelson ◽  
...  
Keyword(s):  
Second Harmonic Generation ◽  
Optical Fibers ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Phase Fluctuations

High-Pressure Synthesis of Rare-Earth Borate-Nitrate Crystals for Second Harmonic Generation

2020 ◽  
Vol 60 (1) ◽  
pp. 286-291
Author(s):  
Sergiy Katrych ◽  
Alla Arakcheeva ◽  
Andrzej Sienkiewicz ◽  
László Forró ◽  
Trpimir Ivšić
Keyword(s):  
High Pressure ◽  
Rare Earth ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
High Pressure Synthesis ◽  
Rare Earth Borate ◽  
Pressure Synthesis
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