CW Laser (monochromatic)
description
Transcript of CW Laser (monochromatic)
CW Laser (monochromatic)
http://mazur-www.harvard.edu/sentFiles/MazurTalk_507.pdf
Ultra-Short Pulse Generation
http://oemagazine.com/fromTheMagazine/may04/practical.html
Center Frequency
Fundamental Cavity Mode
TBP = .319 = ΔωΔτ or σtσω=1
http://mazur-www.harvard.edu/sentFiles/MazurTalk_507.pdf
SF11 Fused Silica
0.4 0.5 0.6 0.7 0.8 0.9 11.74
1.76
1.78
1.8
1.82
1.84
1.86
(m)
n()
0.4 0.5 0.6 0.7 0.8 0.9 11.45
1.455
1.46
1.465
1.47
1.475
(m)
n()
32
23
22
22
12
212 1
CB
CB
CBn
SF11 Fused Silica
0.4 0.5 0.6 0.7 0.8 0.9 11000
2000
3000
4000
5000
6000
7000
8000
9000
10000
(m)
GV
D (f
s2 )
GVD
0.4 0.5 0.6 0.7 0.8 0.9 1200
300
400
500
600
700
800
900
1000
(m)
GV
D (f
s2 )
GVD
0.4 0.5 0.6 0.7 0.8 0.9 1-1
-0.5
0
0.5
1
1.5
2
2.5x 10
7
(m)
TOD
(fs3 )
TOD
0.4 0.5 0.6 0.7 0.8 0.9 1-2
-1.5
-1
-0.5
0
0.5
1
1.5
2x 10
6
(m)TO
D (f
s3 )
TOD
SF11 Fused Silica
DISPERSION
0.4 0.5 0.6 0.7 0.8 0.9 11.45
1.455
1.46
1.465
1.47
1.475
(m)
n()
ncv
Dispersion Curve of Fused Silica
Dispersion Compensation
http://mazur-www.harvard.edu/sentFiles/MazurTalk_507.pdf
Grating Pairshttp://mazur-www.harvard.edu/sentFiles/MazurTalk_507.pdf
Prism Pairs
http://mazur-www.harvard.edu/sentFiles/MazurTalk_507.pdf
Chirped Mirrors
OPTICS LETTERS / Vol. 22, No. 11 / June 1, 1997
Delay (a.u.)
Inten
sity (
a.u.)
650 700 750 800 850 900 950Wavelength (nm) Delay (a.u.)
Inten
sity (
a.u.)
650 700 750 800 850 900 950650 700 750 800 850 900 950Wavelength (nm)
Laser Spectrum and Pulse Width
0 100 200 300 400 500 600 7000
1
2
3
4
5
6
7
8
20X Apochromat
0 100 200 300 400 500 600 7000
1
2
3
4
5
6
7
8
20X Planapochromat
0 100 200 300 400 500 600 7000
1
2
3
4
5
6
7
8
40X Apochromat
0 100 200 300 400 500 600 7000
1
2
3
4
5
6
7
8
63X Apochromat
0 100 200 300 400 500 600 7000
1
2
3
4
5
6
7
8
63X C-Apochromat
0 100 200 300 400 500 600 7000
1
2
3
4
5
6
7
8
100X Apochromat