SPL BK94-40 (931.0 +/-3NM) 数据手册
2007-05-23
Unmounted Laser Bars, 50% Fill Factor, 940nm
Version 0.1
SPL BK94-40
SPL BK94-40
Features
• Unmounted monolithic linear array
• 25 emitter design (50% fill factor)
• Recommended optical power 250W
• Typical conversion efficiency 63%
• High efficiency and reliable MOVPE-grown quantum-well structure
• Other center pulse wavelengths available upon request
• Solderable p- and n-side metallization
• N-side metallization suitable for wire bonding
Applications
Recommended for continuous wave (cw)-applications
Pumping of solid-state and fiber lasers
Direct material processing
Heating, illumination
Medical applications
Printing applications
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Safety Advices
Depending on the mode of operation, these devices emit highly concentrated non-visible infrared light
which can be hazardous to the human eye. Products which incorporate these devices have to follow the
safety precautions found in IEC 60825-1 “Safety of laser products”.
Ordering Information
Type
Power1)
Wavelength2)
Ordering Code
SPL BK94-40
250 W
931 ± 5 nm
Q65111A7639
1)
2)
Recommended optical power implies a thermal resistance of Rth < 0.3 K/W.
Center pulse wavelength (wafer median) of unmounted laser bars at 1 μs pulse width and 4 kHz repetition rate. Other
wavelengths or tolerances available upon request.
07.07.2017
1
DRAFT – For reference only. Subject to change –
may be necessary in a limited number of cases.
Version 0.1
SPL BK94-40
Characteristics1) (TA = 25 °C)
Parameter
Symbol
Values
Unit
min.
typ.
Recommended output power
Pop
-
250
-
W
Threshold current
Ith
-
24
27
A
Operating current
2)
max.
Iop
-
236
260
A
η
1.08
1.18
-
W/A
Total conversion efficiency2)3)
ηtot
-
63
-
%
Beam divergence fast-axis2)4)
θ
-
45
-
°
Beam divergence slow-axis2)3)4)
θII
-
7.5
-
°
Slope efficiency
Center pulse wavelength (wafer median)
λpulse
926
931
936
nm
Spectral width (FWHM)2)
Δλ
-
3
-
nm
TE Polarization2)3)
PTE
-
> 95
-
%
1)
All characteristics and limitations refer to pulsed measurements (1 μs pulse width at 4 kHz repetition rate) of
unmounted laser bars. The realization of the specified values in cw-mode (continuous wave mode) implies a suitable
mounting technology with a thermal resistance of Rth < 0.3 K/W. The operating emission wavelength depends on the
operating mode (cw or pulsed, ambient temperature, thermal resistance Rth) and is in general higher than the
specified center pulse wavelength λpulse. All characteristics obtained in the respective operating mode may differ
from the characteristics specified herein.
2)
Specified at the typical optical output power Pop, typ.
3)
Parameter strongly depends on bar mounting.
Typical values for cw-operation of bars mounted with hard solder (Rth = 0.3 K/W, TA = 20°C).
4)
Full width at 95% power content.
Dimensions
Parameter
Symbol
Values
Unit
min.
typ.
Number of emitters
n
-
25
max.
-
Single emitter contact width
w
-
200
-
µm
Emitter pitch
p
-
400
-
µm
Fill factor
F
-
50
-
%
mm
Bar width
W
11.3
11.4
11.5
Bar height
H
105
115
125
µm
Resonator length
L
3990
4000
4010
µm
07.07.2017
2
DRAFT – For reference only. Subject to change –
may be necessary in a limited number of cases.
Version 0.1
SPL BK94-40
Disclaimer
OSRAM OS assumes no liability whatsoever for any use of this document or its content by recipient including, but not
limited to, for any design in activities based on this preliminary draft version. OSRAM OS may e.g. decide at its sole
discretion to stop developing and/or finalizing the underlying design at any time.
Attention please!
The information describes the type of component and shall not be considered as assured characteristics.
Terms of delivery and rights to change design reserved. Due to technical requirements components may contain
dangerous substances.
For information on the types in question please contact our Sales Organization. If printed or downloaded, please find
the latest version in the Internet.
Packing
Please use the recycling operators known to you. We can also help you – get in touch with your nearest sales office.
By agreement we will take packing material back, if it is sorted. You must bear the costs of transport. For packing
material that is returned to us unsorted or which we are not obliged to accept, we shall have to invoice you for any costs
incurred.
Components used in life-support devices or systems must be expressly authorized for such purpose!
Critical components* may only be used in life-support devices** or systems with the express written approval of
OSRAM OS.
*) A critical component is a component used in a life-support device or system whose failure can reasonably be
expected to cause the failure of that life-support device or system, or to affect its safety or the effectiveness of that
device or system.
**) Life support devices or systems are intended (a) to be implanted in the human body, or (b) to support and/or
maintain and sustain human life. If they fail, it is reasonable to assume that the health and the life of the user may be
endangered.
Published by
OSRAM Opto Semiconductors GmbH
Leibnizstraße 4, D-93055 Regensburg
www.osram-os.com
© All Rights Reserved.
07.07.2017
3
DRAFT – For reference only. Subject to change –
may be necessary in a limited number of cases.
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