Conduction-cooled 40W CW diodes0 pages

Conduction - cooled 40W CW Diode Bars
QD-Cx840-S & QD-Cx840-H

DESCRIPTION
The QD-Cx840-S & QD-Cx840-H products are based upon highly performing 40W CW Laser Diode Bar
Arrays. The Laser Diode structure is multiple emitters spaced on a monolithic 1cm "bar". The bar is mounted
with the active zone (P side) towards a conductively cooled submount with low thermal resistance.
The quality quantum well structure and of the process leads to high electrical to optical conversion efficiency
and reliability.
The compact and rugged package allows easy connection to an efficient heat exchanger. So the submount
temperature can be adjusted to tune the emission wavelength. With this open package the optical beam can
be directly used to achieve efficient coupling.
A fast-axis collimation lens (FAC lens, Antireflection coated) can also be assembled to reduce the divergence
to 0,5 deg.
This linear bar array is ideal for applications which request high output power like pumping solid state lasers,
illuminators, medical therapy, graphic arts, material processing…
MAIN FEATURES
• 40W CW optical power
• Low divergence
• High reliability
• Conductively cooled package ‘S’ & ‘H’ types
• Optional Fast-Axis-Collimating lens
• Wavelengths in the 795nm - 980nm range

SPECIFICATIONS @ 25°
QD-C1840-H
QD-C1840-S

QD-C4840-H
QD-C4840-S

QD-C5840-H
QD-C5840-S

QD-C6840-H
QD-C6840-S

UNITS

CW output power

40

40

40

40

Watt

Center wavelength @ nom. P.

808

915

940

980

nm

9

8

8

7

Amp.

43
50

43
52

43
52

43
52

Amp.
Amp.

Operating voltage

<2

<2

<2

<2

Volt

Slope Efficiency

1.15

1.10

1.10

1.05

W/A

50
45

50
45

52
45

52
45

%
%

10 x 38

10 x 38

10 x 38

10 x 38

Degree

PARAMETERS

Threshold current
Operating current

Total efficiency

Typical
Max

Typical
Min

Beam divergence (FWHM)
Note :

• Variation of wavelength is approximately 0.25 to 0.3 nm/°
C
• Standard tolerance on wavelength is + 3nm @ 808nm and 9xxnm
• Spectral width (FWHM) is < 3nm @ 808nm, < 5nm @ 9xxnm
• Optional fast-axis collimating lens
• Operating at higher power or higher temperature will accelerate component ageing, increase threshold current and decrease slope
efficiency.
Quantel reserve the right to change specifications without prior notice
Dsmk-8042 (ed7)

Copyright. QLD 05/11