Ti:Sapphire Lasers operated with ns-Pulses (550 – 1100 nm)

LAYERTEC offers a wide range of optical components for Ti:Sapphire lasers which operate with ns-pulses. Please note that all of these components are optimized for smooth group delay (GD) spectra in order to achieve wide tuning ranges. However, these components are not optimized for group delay dispersion (GDD). Such optics are necessary for fs-pulses and they will be introduced on page Standard Ultrafast Laser Optics (120 – 150 nm Bandwidth).

Please note that broadband optics for Ti:Sapphire lasers cannot be used for the radiation of ruby or alexandrite lasers, although they are specified for 694 nm or 755 nm, respectively. Ruby and alexandrite lasers require special high power coatings. For such special coatings please see page Ruby and Alexandrite Lasers (694 nm, 755 nm).

Cavity Mirrors

Pump Mirrors

Turning Mirrors

Output Couplers

Cavity Mirrors

Fig.1:Reflectance and GD-spectra of a broadband laser mirror

a)Reflectance vs. wavelength

b)GD vs. wavelength

Pump Mirrors

Fig.2:Reflectance spectra of a broadband pump mirror

a)Reflectance vs. wavelength

b)GD vs. wavelength

Special Features

Very high reflectance of the mirrors: R > 99.9 %, depending on bandwidth R > 99.98 % may also be achieved
Spectral tolerance: ±1 %
Center wavelength, bandwidth and reflectance of partial reflectors according to customer specification

Turning Mirrors

Fig.3:Reflectance and GD spectra of a broadband turning mirror

a)Reflectance vs. wavelength

b)GD vs. wavelength

Output Couplers

Fig.4:Reflectance spectra of several types of output couplers

a)Standard and broadband output coupler

b)Output coupler with a special reflectance profile which enables the compensation of the amplification characteristics of the laser; see also:
B. Jungbluth, J. Wueppen, J. Geiger, D. Hoffmann, R. Poprawe: “High Performance, Widely Tunable Ti:Sapphire Laser with Nanosecond Pulses” in: "Solid State Lasers XV: Technology and Devices", Proc. of SPIE Vol. 6100, San Jose 2006

Fig.5:Reflectance and GD spectra of a broadband beam splitter with PRu (45°, 650 – 1050 nm) = 50 % ±3 %

a)Reflectance vs. wavelength

b)GD vs. wavelength

Tolerances

Standard output couplers (120 – 150 nm bandwidth):
- ±2.5 % for R = 10 … 70 %
- ±1.5 % for R = 70 … 90 %
- ±0.75 % for R = 90 … 95 %
- ±0.5 % for R = 95 … 98 %
- ±0.25 % for R > 98 %
Broadband output couplers (200 – 600 nm bandwidth):
- ±3 % for R = 10 … 70 %
- ±2 % for R = 70 … 90 %
- ±1 % for R = 90 … 95 %
- ±0.5 % for R = 95 … 98 %

Ti:Sapphire Lasers operated with ns-Pulses (550 – 1100 nm)

Cavity Mirrors

Pump Mirrors

Special Features

Turning Mirrors

Output Couplers

Tolerances

Ti:Sapphire Lasers operated with ns-Pulses (550 – 1100 nm)