Co:Spinel (Co:MgAl2O4) Crystals

Product Catalog 2016

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Co:Spinel (Co:MgAl2O4) Crystals

Dimensional tolerances	+0/-0.1 mm
Absorption cross section	3.5×10^-19 cm2 @ 1540 nm
Surface quality	10-5 S-D
Surface flatness	<λ/10 @ 632.8 nm
Parallelism error	<10 arcsec
Perpendicularity	<10 arcmin
Protective chamfers	<0.1 mm x 45°
AR coatings reflectivity	<0.2 % @ 1540 nm

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Description LIDT

Co2+:MgAl2O4 (or Co:Spinel) is a relatively new material for saturable absorber passive Q-switching in lasers emitting from 1.2 to 1.6 microns, in particular, for eye-safe 1.54 μm Er:glass laser.High absorption cross section of 3.5 x 10-19 cm2 permits Q-switching of Er:glass laser.High absorption cross section of 3.5 x 10-19 cm2 permits Q-switching of Er:glass laser without intracavity focusing both with flash lamp and diode-laser pumping. Negligible excited-state absorption results in high contrast of Q-switch, i.e. the ratio of initial (small signal) to saturated absorption is higher than 10. Finally, excellent optical, mechanical, and thermal properties of the crystal give an opportunity to design compact and reliable laser sources with this passive Q-switch.

Cotaing type	AOI	LIDT
[email protected]	0deg	12.63 J/cm2 @1535nm; 6.4ns; 100Hz

Disclaimer

Laser induced damage threshold (LIDT) measurements are performed on actual components produced by Altechna. Individual component’s LIDT depends on multiple parameters (substrate material, polishing batch, coating batch, storage conditions, etc). Damage threshold value reached for above individual components should be used for reference only but it is not guaranteed for all optics. Altechna can perform coating damage threshold testing service upon request.

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Coatings	Dimensions, mm	Initial transmision @1540nm	Delivery	Product ID	Price	Action

[email protected]	3x3	T0=30%	4-6 weeks	3-COSP-30-33	637 $
[email protected]	3x3	T0=40%	4-6 weeks	3-COSP-40-33	637 $
[email protected]	3x3	T0=50%	4-6 weeks	3-COSP-50-33	637 $
[email protected]	3x3	T0=60%	4-6 weeks	3-COSP-60-33	637 $
[email protected]	3x3	T0=70%	4-6 weeks	3-COSP-70-33	637 $
[email protected]	3x3	T0=80%	4-6 weeks	3-COSP-80-33	637 $
[email protected]	3x3	T0=85%	4-6 weeks	3-COSP-85-33	637 $
[email protected]	3x3	T0=90%	4-6 weeks	3-COSP-90-33	637 $
[email protected]	3x3	T0=95%	4-6 weeks	3-COSP-95-33	637 $
[email protected]	3x3	T0=97%	4-6 weeks	3-COSP-97-33	637 $
[email protected]	Ø5	T0=30%	4-6 weeks	3-COSP-30-05	741 $
[email protected]	5x5	T0=30%	4-6 weeks	3-COSP-30-55	741 $
[email protected]	Ø5	T0=40%	4-6 weeks	3-COSP-40-05	741 $
[email protected]	5x5	T0=40%	4-6 weeks	3-COSP-40-55	741 $
[email protected]	Ø5	T0=50%	4-6 weeks	3-COSP-50-05	741 $
[email protected]	5x5	T0=50%	4-6 weeks	3-COSP-50-55	741 $
[email protected]	Ø5	T0=60%	4-6 weeks	3-COSP-60-05	741 $
[email protected]	5x5	T0=60%	4-6 weeks	3-COSP-60-55	741 $
[email protected]	Ø5	T0=70%	4-6 weeks	3-COSP-70-05	741 $
[email protected]	5x5	T0=70%	4-6 weeks	3-COSP-70-55	741 $
[email protected]	5x5	T0=80%	4-6 weeks	3-COSP-80-55	741 $
[email protected]	5x5	T0=85%	4-6 weeks	3-COSP-85-55	741 $
[email protected]	Ø5	T0=90%	4-6 weeks	3-COSP-90-05	741 $
[email protected]	5x5	T0=90%	4-6 weeks	3-COSP-90-55	741 $
[email protected]	Ø5	T0=95%	4-6 weeks	3-COSP-95-05	741 $
[email protected]	5x5	T0=95%	4-6 weeks	3-COSP-95-55	741 $
[email protected]	Ø5	T0=97%	4-6 weeks	3-COSP-97-05	741 $
[email protected]	5x5	T0=97%	4-6 weeks	3-COSP-97-55	741 $
[email protected]	Ø5	T0=80%	4-6 weeks	3-COSP-80-05	741 $
[email protected]	Ø5	T0=85%	4-6 weeks	3-COSP-85-05	741 $