Ultrashort-pulse second-harmonic generation I Transform-limited fundamental pulses

1995 ◽  
Vol 12 (9) ◽  
pp. 1704 ◽  
Author(s):  
Erkin Sidick ◽  
André Knoesen ◽  
Andrew Dienes
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Ultrashort Pulse ◽  
Second Harmonic

ULTRASHORT PULSE SECOND-HARMONIC GENERATION IN OPTIMIZED NONLINEAR POLYMER THIN FILM STRUCTURES

1994 ◽  
Vol 03 (04) ◽  
pp. 543-563 ◽  
Author(s):  
E. SIDICK ◽  
A. DIENES ◽  
A. KNOESEN
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Conversion Efficiency ◽  
Ultrashort Pulse ◽  
Second Harmonic ◽  
Short Pulse ◽  
Interaction Length ◽  
Polymer Thin Film ◽  
Dispersion Phase ◽  
Pulse Distortion

Methods to optimize the generation of ultrashort second harmonic pulses are investigated. The goal is to maximize the conversion efficiency while maintaining a short pulse. The first method exploits the effects of anomalous-dispersion phase-matching. In a nonlinear polymer we show that an optimum concentration of chromophore exists that maximizes the conversion efficiency without causing unacceptable pulse-spreading. In the second method we use unipolar and bipolar quasi-phase-matched (QPM) structures to increase the nonlinear interaction length. Unipolar and bipolar QPM structures not only provide significant enhancement in ultrashort pulse second harmonic generation but also reduce the pulse distortion.

Second-Harmonic Generation Through KTP Crystal Pumped by High-Peak-Power Picosecond Ultrashort Pulse

2016 ◽  
Vol 43 (9) ◽  
pp. 0901006
Author(s):  
沈梅力 Shen Meili ◽  
李霄 Li Xiao ◽  
于海龙 Yu Hailong ◽  
尚亚萍 Shang Yaping ◽  
许晓军 Xu Xiaojun
Keyword(s):  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Ultrashort Pulse ◽  
Peak Power ◽  
Second Harmonic ◽  
High Peak ◽  
High Peak Power ◽  
Ktp Crystal
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