Лазерные стержни из Nd-фосфатного стекла

Titanium doped Sapphire (Ti:Sapphire) is the most widely used laser crystal for widely tunable and ultrashort pulsed lasers with high gain and high power outputs. The Ti:Sapphire crystals of Hangzhou Shalom Electro-optics Technology Co., Ltd. is grown by the method of Temperature Gradient Technique (TGT), the large-sized (Dia.30x 30mm) Ti:Sapphire crystal in high quality free of light scatter, with the dislocation density less than 102cm-2 .could be provided. The TGT grown sapphire crystal is characterized by the (0001) oriented growth, high doping level (a490= 4.0cm-1), high gain and laser damage threshold.

Ti:Sapphire Al2O3:Ti3+ - titanium-doped sapphire crystals combine supreme physical and optical properties with broadest lasing range, It's indefinitely long stability and useful lifetime added to the lasing over entire band of 660-1050 nm challenge "dirty" dyes in variety of applications. Medical laser systems, lidars, laser spectroscopy, direct femtosecond pulse generation by Kerr-type mode-locking - there are few of existing and potential applications.

The absorption band of Ti:Sapphire centered at 490 nm makes it suitable for variety of laser pump sources - argon ion, frequency doubled Nd:YAG and YLF, copper vapour lasers. Because of 3.2 μs fluorescence lifetime Ti:Sapphire crystals can be effectively pumped by short pulse flashlamps in powerful laser systems.

Ti:Sapphire (Al2O3:Ti3+)- titanium-doped sapphire crystals combine supreme physical and optical properties with broadest lasing range.  Its indefinitely long stability and useful lifetime added to the lasing over entire band of 660-1050 nm challenge "dirty" dyes in variety of applications. Medical laser systems, lidars, laser spectroscopy, direct femtosecond pulse generation by Kerr-type mode-locking - there are few of existing and potential applications.

Main Applications

  • The tunable wavelengths that cover a broad range from 700 to 1000 nm make Ti:Sapphire an excellent substitute for dye lasers in many applications.
  • Doubling by NLO crystals such as BBO in an ultra-thin, Ti:Sapphire can be used to generate UV and DUV (up to 193 nm ) laser with ultrafast pulses below 10fs.
  • Ti:Sapphire is also widely used as the pumping source of OPOs greatly to expand the tunable range. 

Optics-M supplies  a wide variety of finished laser rods and slabs.  Our standard Ti:Sapphire production follows:

Specifications
Ti2O3 concentration 0.06-0.5 wt%
Figure of Merit 100~300
Diameter 2~50mm
Path Length 2~130mm
End configuration flat/flat or Brewster/Brewster ends or custom specified
Orientation Optical axis C normal to rod axis
α490 1.0-7.5cm-1
Flatness 10 @633nm
Parallelism 10 arcsec
Surface quality 10/5 scratch/dig
Wavefront distortion 4 per inch

 

Physical Properties
Chemical formula Ti3+: Al2O3
Crystal structure Hexagonal
Melting point 2050 °C
Density 3.98 g/cm3
Hardness 9 Mohs 
Thermal conductivity 0.11 cal/(°C x sec x cm)
Specific heat 0.10 cal/g

 

Optical Properties
Laser action 4-Level Vibronic
Lattice constants a = 4.748, c = 12.957
Fluorescence lifetime 3.2 μsec (T = 300 K)
Tuning range 660-1050 nm
Absorption range 400-600 nm
Emission peak 795 nm
Absorption peak 488 nm
Refractive index 1.76 @ 800 nm