Co:Spinel (Co:MgAl2O4) Crystals

More Views

Co₂+:MgAl₂O₄ is a
material for saturable absorber passive Q-switching in lasers
emitting from 1.2 to 1.6 m, in particular, for eye-safe 1.54 m Er:glass
laser.

Absorption Cross-Section, cm^2	3,5x10-19 @ 1540 nm
AR Coating Reflectivity, %	≤0,2% @ 1540 nm
Dimension Tolerances, mm	+0.0 mm/-0.2 mm
Parallelism Error, arcsec	≤ 10 arcsec
Perpendicularity, arcmin	≤ 10 arcmin
Protective chamfers	<0.1 mm @ 45deg
Surface Quality, S-D	10 - 5 scratch & dig
Wavefront Distortion	≤λ/10 @ 632.8 nm
Wavelength Range, nm	1200-1600

Description

Details

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.

Features

Chemical stability
UV resistant
Good thermal conductivity
High damage threshold (> 500 MW/cm2)

Name	Coatings	Dimensions, mm	Initial transmission, %	Price	Quantity
3-COSP-30-05	AR/AR@1540nm	Ø5	30%@1540nm	US$570.00
3-COSP-30-33	AR/AR@1540nm	3x3	30%@1540nm	US$490.00
3-COSP-30-55	AR/AR@1540nm	5x5	30%@1540nm	US$570.00
3-COSP-40-05	AR/AR@1540nm	Ø5	40%@1540nm	US$570.00
3-COSP-40-33	AR/AR@1540nm	3x3	40%@1540nm	US$490.00
3-COSP-40-55	AR/AR@1540nm	5x5	40%@1540nm	US$570.00
3-COSP-50-05	AR/AR@1540nm	Ø5	50%@1540nm	US$570.00
3-COSP-50-33	AR/AR@1540nm	3x3	50%@1540nm	US$490.00
3-COSP-50-55	AR/AR@1540nm	5x5	50%@1540nm	US$570.00
3-COSP-60-05	AR/AR@1540nm	Ø5	60%@1540nm	US$570.00
3-COSP-60-33	AR/AR@1540nm	3x3	60%@1540nm	US$490.00
3-COSP-60-55	AR/AR@1540nm	5x5	60%@1540nm	US$570.00
3-COSP-70-05	AR/AR@1540nm	Ø5	70%@1540nm	US$570.00
3-COSP-70-33	AR/AR@1540nm	3x3	70%@1540nm	US$490.00
3-COSP-70-55	AR/AR@1540nm	5x5	70%@1540nm	US$570.00
3-COSP-80-05	AR/AR@1540nm	Ø5	80%@1540nm	US$570.00
3-COSP-80-33	AR/AR@1540nm	3x3	80%@1540nm	US$490.00
3-COSP-80-55	AR/AR@1540nm	5x5	80%@1540nm	US$570.00
3-COSP-85-05	AR/AR@1540nm	Ø5	85%@1540nm	US$570.00
3-COSP-85-33	AR/AR@1540nm	3x3	85%@1540nm	US$490.00
3-COSP-85-55	AR/AR@1540nm	5x5	85%@1540nm	US$570.00
3-COSP-90-05	AR/AR@1540nm	Ø5	90%@1540nm	US$570.00
3-COSP-90-33	AR/AR@1540nm	3x3	90%@1540nm	US$490.00
3-COSP-90-55	AR/AR@1540nm	5x5	90%@1540nm	US$570.00
3-COSP-95-05	AR/AR@1540nm	Ø5	95%@1540nm	US$570.00
3-COSP-95-33	AR/AR@1540nm	3x3	95%@1540nm	US$490.00
3-COSP-95-55	AR/AR@1540nm	5x5	95%@1540nm	US$570.00
3-COSP-97-05	AR/AR@1540nm	Ø5	97%@1540nm	US$570.00
3-COSP-97-33	AR/AR@1540nm	3x3	97%@1540nm	US$490.00
3-COSP-97-55	AR/AR@1540nm	5x5	97%@1540nm	US$570.00