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ti sapphire laser crystal
ti sapphire laser crystal

Ti: Sapphire Laser Crystals

Ti: Sapphire crystal is the most widely used tunable solid-state laser material combining the supreme physical and optical properties with an 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.


Laser designers are using Ti: sapphire to generate femtosecond pulses to create new industrial tools. A properly delivered femtosecond laser pulse interacts with the target leaving the surrounding area undisturbed. Newly developed femtosecond pulsed lasers micro-machine complex fine structures in glass, metal, and other materials. Active waveguides can be written below the surface, integrating optical devices within the body of a substrate. Defects in photomasks can be repaired without disturbing neighboring patterns. And it is now possible to achieve cellular resolution in vivo for medical diagnosis with femtosecond pulse lasers.

Advantages of Ti Sapphire Laser Crystals


  • Large gain-bandwidth

  • Short excited-state lifetime (3.2 us)

  • Excellent thermal conductivity

  • High saturation power

  • High damage threshold


Applications of Ti Sapphire Laser Crystals


  • Two-Photon Microscopy

  • Multi-Channel Fluorescence Images of 3D Volumes

  • Photostimulation and Uncaging

  • Label-Free Imaging via Multiphoton Autofluorescence and SHG


Specifications of Ti Sapphire Laser Crystals


Orientation:

Optical axis C normal to the rod axis

Ti2O3 concentration:

0.03 - 0.25wt %

Figure Of Merit (FOM):

100~250 Upon customer request

End configurations:

Flat/Flat or Brewster/Brewster ends

Flatness:

l /8 ~1/10@ 633 nm

Parallelism:

10 arcsec

Surface finishing:

10/5 scratch/dig to MIL-O-13830A

Clear Aperture:

> 90%

Chamfer:

< 0.1 mm @ 45deg.

Size

Upon customer request

Coating

AR/HR coating upon customer’s request

Damage Threshold

750MW/CM2 at 1064nm, TEM00, 10ns, 10Hz

Quality Warranty Period

One year under proper use


Optical and Spectral Properties of Ti Sapphire


Absorption range

400 - 600 nm

Tuning range

660 - 1050 nm

Emission peak

795 nm

Absorption peak

488 nm

Absorption cross-section at a peak wavelength

38x10^-20 cm2

Emission Cross-section

Σ532nm = 4.9x10^-20 cm2

Emission Cross-section

Σ490nm = 6.4x10^-20 cm2

Emission cross-section

Σ790nm = 41x10^-20 cm2

dn/dT

13x10^-6 K-1

Thermal conductivity

33 Wm-1K-1

Laser action

4-level vibronic

Fluorescence lifetime

3.2 µs (T=300K)

Refractive index

1.76 @ 800 nm

Chemical formula

Ti3+:Al2O3

Crystal structure

Hexagonal a=4.758, c=12.991

Density

3.98 g/cm3

Melting point

2040℃

Mohs hardness

9


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Head Office: No. 66, 8 Group, Chengbei Village, Yanguan Town, Jiaxing 314411, China;

Hangzhou Branch: Room 1012, Chunhua Bussiness Center, No. 159, Hangbo Street, Shangcheng District, Hangzhou 310009, Zhejiang, China
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