High reflective Laser Mirrors for High Power Laser Applications0 pages

High reflective Laser Mirrors
for High Power Laser Applications
SCHOTT’s Laser Mirrors with high reflective, broadband coatings especially suitable for high power laser applications
Product Information
Mirror with high reflective broadband coating (700 – 900 nm)
for 45° incidence in S-polarization on N-BK7, ZERODUR® or
fused silica substrates
Advantages
•t Broad spectral range
•t Double sided polished substrates
•t High homogeneous SCHOTT N-BK7 for optimum WFE
•t High laser damage threshold tested at LZH, Germany
(according DIN EN ISO 21254)
Technical Data

Reflection curve REMAX 785/45° pol. S

Available dimensions and surface quality

100
90

•tDiameter: up to Ø 380 mm
•tPolishing quality:
P4 (Rq = 0.4 – 0.5 nm rms)
•tDouble sided polished

Reflectance [%]

80
70
60
50

Spectral range coating

40
30

•tR > 99.5 % reflectivity from 700 nm to 900 nm

20

Laser Damage Threshold

10

10 ns, 10 Hz

155 J/cm2*

200 ps, 1kHz

4.2 J/cm2**

180 fs, 1kHz,

0.4 J/cm2***

0
650

700

750

800

850

900

950

Wavelength [nm]

Mirror substrates
Group Delay Dispersion (GDD) curve REMAX 785/45° pol. S

•tN-BK7
•tZERODUR®
•tFused Silica
•tCustom

1000
800

400

* t tested at SPICA, USA
** ttested by LOA, France
*** ttested at LZH, Germany

200
0
–200
–400
–600
–800
–1000
650

700

750

800

850

900

Version May 2013

Reflection GDD (fs2)

600

950

Wavelength [nm]

Advanced Optics
SCHOTT AG
Hattenbergstrasse 10
55122 Mainz
Germany
Phone +49 (0)6131/66-1812
Fax +49 (0)3641/2888-9047
info.optics@schott.com
www.schott.com/advanced_optics