Pressure effects on the spectral line shape of broad-band degenerate four-wave mixing

1998 ◽  
Vol 45 (12) ◽  
pp. 2541-2549 ◽  
Author(s):  
D. J. W. Walker ◽  
G. M. Lloyd ◽  
R. B. Williams ◽  
R. Bratfalean ◽  
P. Ewart
Keyword(s):  
Spectral Line ◽  
Line Shape ◽  
Broad Band ◽  
Four Wave Mixing ◽  
Pressure Effects ◽  
Wave Mixing ◽  
Spectral Line Shape ◽  
Degenerate Four Wave Mixing

Low-Coherence Reflectometry Through Scattering Media with Degenerate Four-Wave Mixing in a Thin Nonlinear Optical Layer

1997 ◽  
Vol 06 (01) ◽  
pp. 95-102 ◽  
Author(s):  
V. Fleurov ◽  
D. Brown ◽  
C. Lawson
Keyword(s):  
Nonlinear Optical ◽  
Broad Band ◽  
Laser Pulses ◽  
Four Wave Mixing ◽  
Nanosecond Laser ◽  
Wave Mixing ◽  
Scattering Media ◽  
Low Coherence ◽  
Optical Layer ◽  
Degenerate Four Wave Mixing

We have demonstrated the coherence filtering operation for optical low-coherence reflectometry via degenerate four-wave mixing (DFWM) in a thin nonlinear optical layer. To perform proof-of-principle DFWM experiments, we use a thin dye solution with a thermally-induced optical nonlinearity. In contrast to previous works, which used c.w. light-emitting diodes or Fourier-transform limited ultra-short laser pulses, we have used broad-band nanosecond laser pulses for depth resolved measurements through scattering media.

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