Ti:Sapphire ( Titanium-doped Sapphire, Ti:Al2O3)

Ti:Sapphire crystal is the most widely used tunable solid-state laser material combining the supreme physical and optical properties with the extremely broad lasing range.  Its lasing bandwidth can support pulses < 10fs making it the crystal of choice for femtosecond mode-locked oscillators and amplifiers.  The absorption band of Ti:Sapphire centers at ~ 490 nm so it may be conveniently pumped by various laser sources such as argon ion lasers or frequency doubled Nd:YAG, Nd:YLF, Nd:YVO4 lasers at ~ 530nm.

We can provide  large ( up to  φ120 x 80mm) Ti:Sapphire crystals.  The ends of Ti:Sapphire crystals can be coated with broadband AR @ 800nm or cut at the Brewster angle to eliminate the reflection loss.

Please contact Newlight for crystal sizes and doping levels for your applications.

Basic Properties

Chemical formula	Ti3+:Al2O3
Crystal structure	Hexagonal a=4.758, c=12.991
Density	3.98 g/cm3
Melting point	2040oC
Mohs hardness	9
Thermal conductivity	52 W/m/K
Laser action	4-level vibronic
Fluorescence lifetime	3.2 µs (T=300K)
Tuning range	660 - 1050 nm
Absorption range	400 - 600 nm
Emission peak	795 nm
Absorption peak	488 nm
Refractive index	1.76 @ 800 nm

Absorption Coefficient vs. Ti Doping Level



Standard Products

Part No.	Doping	Dimensions	Coating	In stock
TIS3100-D020-AR800	0.20%	Dia.3.0x10mm	AR@800nm	Email/Call
TIS3100-D020-B	0.20%	Dia.3.0x10mm	Brewster ends	Email/Call
TIS3100S-D020-B	0.20%	3.0x3.0x10mm	Brewster ends	Email/Call
TIS4100-D020-AR800	0.20%	Dia.4.0x10mm	AR@800nm	Email/Call
TIS4100-D020-B	0.20%	Dia.4.0x10mm	Brewster ends	Email/Call
TIS4100S-D020-B	0.20%	4.0x4.0x10mm	Brewster ends	Email/Call
TIS3150-D020-AR800	0.20%	Dia.3.0x15mm	AR@800nm	Email/Call
TIS3150-D020-B	0.20%	Dia.3.0x15mm	Brewster ends	Email/Call
TIS3150S-D020-B	0.20%	3.0x3.0x15mm	Brewster ends	Email/Call
TIS4150-D020-AR800	0.20%	Dia.4.0x15mm	AR@800nm	Email/Call
TIS4150-D020-B	0.20%	Dia.4.0x15mm	Brewster ends	Email/Call
TIS4150S-D020-B	0.20%	4.0x4.0x15mm	Brewster ends	Email/Call
TIS3250-D010-B	0.10%	Dia.3.0x25mm	Brewster ends	Email/Call

Ti:Sapphire crystals are highly customized. Please contact us  for the crystals  with specified dimensions and doping concentration that best suit your applications.

Specifications on Finished Products

Orientation:	a-cut with the rod axis normal to the optical axis c-axis. c-cut available upon request.
Ti2O3 concentration:	0.06 - 0.25 wt %
Figure of Merit(FOM):	> 250 or 150 depending on the doping level
End configurations:	Flat/Flat or Brewster/Brewster ends
Flatness:	λ/10 @ 633 nm
Parallelism:	20 arc sec
Surface finishing:	10/5 scratch/dig to MIL-O-13830A
Wavefront distortion:	λ/4 per inch