Co:Spinel (Co:MgAl2O4) Crystals

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Co:Spinel (Co:MgAl2O4) Crystals

Absorption cross section	3.5×10^-19 cm2 @ 1540 nm
Dimensional tolerances	+0/-0.1 mm
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

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.

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

AR/AR@1540nm	3x3	T0=30%	2-4 weeks	3-COSP-30-33	490 €
AR/AR@1540nm	3x3	T0=40%	2-4 weeks	3-COSP-40-33	490 €
AR/AR@1540nm	3x3	T0=50%	2-4 weeks	3-COSP-50-33	490 €
AR/AR@1540nm	3x3	T0=60%	2-4 weeks	3-COSP-60-33	490 €
AR/AR@1540nm	3x3	T0=70%	2-4 weeks	3-COSP-70-33	490 €
AR/AR@1540nm	3x3	T0=80%	2-4 weeks	3-COSP-80-33	490 €
AR/AR@1540nm	3x3	T0=85%	2-4 weeks	3-COSP-85-33	490 €
AR/AR@1540nm	3x3	T0=90%	2-4 weeks	3-COSP-90-33	490 €
AR/AR@1540nm	3x3	T0=95%	2-4 weeks	3-COSP-95-33	490 €
AR/AR@1540nm	3x3	T0=97%	2-4 weeks	3-COSP-97-33	490 €
AR/AR@1540nm	Ø5	T0=30%	2-4 weeks	3-COSP-30-05	570 €
AR/AR@1540nm	5x5	T0=30%	2-4 weeks	3-COSP-30-55	570 €
AR/AR@1540nm	Ø5	T0=40%	2-4 weeks	3-COSP-40-05	570 €
AR/AR@1540nm	5x5	T0=40%	2-4 weeks	3-COSP-40-55	570 €
AR/AR@1540nm	Ø5	T0=50%	2-4 weeks	3-COSP-50-05	570 €
AR/AR@1540nm	5x5	T0=50%	2-4 weeks	3-COSP-50-55	570 €
AR/AR@1540nm	Ø5	T0=60%	2-4 weeks	3-COSP-60-05	570 €
AR/AR@1540nm	5x5	T0=60%	2-4 weeks	3-COSP-60-55	570 €
AR/AR@1540nm	Ø5	T0=70%	2-4 weeks	3-COSP-70-05	570 €
AR/AR@1540nm	5x5	T0=70%	2-4 weeks	3-COSP-70-55	570 €
AR/AR@1540nm	5x5	T0=80%	2-4 weeks	3-COSP-80-55	570 €
AR/AR@1540nm	5x5	T0=85%	2-4 weeks	3-COSP-85-55	570 €
AR/AR@1540nm	Ø5	T0=90%	2-4 weeks	3-COSP-90-05	570 €
AR/AR@1540nm	5x5	T0=90%	2-4 weeks	3-COSP-90-55	570 €
AR/AR@1540nm	Ø5	T0=95%	2-4 weeks	3-COSP-95-05	570 €
AR/AR@1540nm	5x5	T0=95%	2-4 weeks	3-COSP-95-55	570 €
AR/AR@1540nm	Ø5	T0=97%	2-4 weeks	3-COSP-97-05	570 €
AR/AR@1540nm	5x5	T0=97%	2-4 weeks	3-COSP-97-55	570 €
AR/AR@1540nm	Ø5	T0=80%	2-4 weeks	3-COSP-80-05	570 €
AR/AR@1540nm	Ø5	T0=85%	2-4 weeks	3-COSP-85-05	570 €