Yb Doped CaGdAlO4 Crystal For High Power And Ultra Short Laser Pulses

Basic Information
Place of Origin: China
Brand Name: CRYLINK
Certification: Iso9001
Model Number: CRYLINK-Yb:CALGO Laser Crystal
Minimum Order Quantity: 1 Pieces
Price: negotiation
Packaging Details: Carton
Delivery Time: 3-4 weeks
Payment Terms: TT
Supply Ability: 100 pieces /month
Detail Information
Name: Yb:CALGO Parallelism: 10
Perpendicularity: 10 Surface Quality: 20/10
Surface Flatness: </10@632.8nm Clear Aperture: >90%
High Light:

nd yag laser rod


titanium doped sapphire

Product Description

Yb Doped CaGdAlO4 Crystal For High Power And Ultra Short Laser Pulses

Yb-doped CaGdAlO4 crystal (Yb:CALGO) is now recognized to exhibit outstanding properties for the production of high-power and ultra-short laser pulses. It has the broad and smooth emission bandwidth to generate very short pulses (<100 fs). Additionally its’ high thermal conductivity make it is able to hold high power pumping(2 at. % Yb:CALGO thermal conductivity to be 6.9 and 6.3 WK1 m1 along the a and c axis); The generation of both very short pulse and high average power femtosecond oscillators has been demonstrated

Yb3+:CaGdAlO4 has been recently demonstrated to be very interesting for the development of diodepumped short-pulsed modelocked lasers. Compared with Ti: Sapphire crystal(the choice for the development of ultrashort laser system producing very short and powerful pulses using the Chirped Pulse Amplification techniqueSince the beginning of the 90’s),Yb:CALGO can be directly pumped by very efficient and high power semiconductor laser.( Titanium Sapphire crystal pumped by green laser)


Material and Specifications
Doping Concentration 1-10%
Parallelism 10
Perpendicularity 10
Surface Quality 20/10
Surface Flatness </10@632.8nm
Clear Aperture >90%
Chamfer 0.1mm@45°
Thickness/Diameter Tolerance ±0.05 mm


Physical and Chemical Properties

Formula Yb:CaGdAlO4 (Yb:CALGO)
Crystal Structure Tetragonal K2NiF4 type structure
Melting Point 1840°C
Thermal Conductivity/(Wm-1K-1) 11.4(undoped)
6.3(2% Yb:CALGO)
5(5% Yb:CALGO)
Thermal Shock Resistance(W.m-1/2) >4.5
Thermal Expansion /(10-6K-1 ) 35


Optical and Spectral Properties

Emission band width* (FWHM) (nm) 80
Emission Wavelength(nm) 1018-1052
Minimum theoretical duration (fs) 14
Central emission peak (nm) 1050
Absorption(usual pumping) (nm) 980
Emission cross section(10-20 cm2) 0.8
Fluorescence lifetime (s) 420
em (scm2) 336
Quantum Defect <0.8%


Main properties of laser materials involved in the development of femtosecond lasers
Material Emission band
width(FWHM) (nm)
Minimum theoretical
duration (fs)
Central emi
ssion peak (nm)
(usual pumping) (nm)
Yb:YAG 9 124 1031 942
Yb:Glass 35 31 1020 975
Yb:GdCOB 44 26 1044 976
Yb:BOYS 60 18 1025 975

Contact Details

Phone Number : +8618699681379