Mirrors for Multipass Cells (MPC)
Overview
Nonlinear compression of laser pulses with tens of millijoule energy in a multipass cell is a promising approach to realize a new generation of high average power femtosecond sources.
The whole approach relies on efficient HR mirrors, which enable to have a large number of reflections with low losses.
If you want to learn more about Mirrors for MPC application - check out our Tech Notes article.
OPTOMAN developed dielectric mirrors optimized specifically for MPC application. OPTOMAN offers flat, concave, and convex broadband mirrors with high reflectivity (R>99.98%), high LIDT (>0.69 J/cm2 @ 1030 nm, 180 fs) and low and spectrally uniform GDD.
Standard MPC mirror can be found at OPTOSHOP
Aiming for higher LIDT or broader spectrum?
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OPTION 1 – ENHANCED LIDT |
OPTION 2 – ENHANCED SPECTRAL BANDWIDTH |
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Spectral bandwidth |
<170 nm at R>99.9% level |
<260 nm at R>99.9% level |
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Group delay dispersion |
< ±20 fs2 < 90 nm |
< ±20 fs2 < 130 nm |
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Reflection |
R>99.98% (confident 99.95%) |
R>99.98% (confident 99.95%) |
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Absorption |
A<1.5 ppm |
A<3 ppm (confident 5 ppm) |
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LIDT |
>0.69 J/cm2 @ 1030 nm, 180 fs |
>0.2 J/cm2 @ 1030 nm, 180 fs |
Design Examples
Reflectance
HR>99.99% @ 970-1090 nm, AOI=0o
Press the right arrow to see the GDD graph.
GDD
|GDDr| < 20 fs2 @ 980-1080 nm
Features - Mirrors available in spectral range of 400 - 2000 nm
- HR (in gas) > 99.99%
- Absorption: <1.5 ppm @ 1030 nm
- LIDT: > 0.69 J/cm^2, 1030 nm, 180 fs, 10 kHz