LDPGAU1S03, LTPGAU1S(1.5,03,09), LQPGAU1S(1.5,03) Datasheet by Excelitas Technologies

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Preliminary Data Sheet
Pulsed Laser Diodes
High volume 5.6mm TO metal package laser diode “LU” series
Introduction
Excelitas Technologies’ multi-epi 905 nm pulsed semiconductor
lasers consists of a series of devices having up to four active lasing
layers epitaxially grown on a single GaAs substrate chip. This multi-
layer design multiplies the output power by the number of epi-
layers.
The laser diode is epoxy mounted within a metal 5.6mm CD
hermetic package, which is designed for high volume commercial
and consumer applications where cost is a key driver in the system
design.
This series of lasers comes in emitting cavity widths of 37.5, 75 and
225µm. Peak wavelength is centered near the maximum
responsivity of most silicon photodiodes. The LU series lasers
match especially well with devices from the Excelitas epi-APD
family C30737.
Key Features
Multiplying the output power
from a single epi-cavity chip
with a small active area
High reliability
High volume hermetic metal
5.6mm TO package
Multi epi-cavity Quantum
well structure
High peak pulsed power into
aperture
Excellent power stability with
temperature
RoHS Compliant
Applications
LIDAR
Laser range finding
Laser-based speed
enforcement
IR-illumination
Laser skin therapy
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High volume 5.6mm TO metal package laser diode “LU” series
Table 1: Maximum Ratings
Symbol
Min
Max
Units
VRM
6
V
tW
100
ns
du
0.1
%
TS
-55
105
°C
TOP
-55
85
°C
+260
°C
Table 2: Generic Electro Optical Specifications at 23°C
Parameter
Symbol
Min
Typ
Max
Units
Center wavelength of spectral envelope
λC
895
905
915
nm
Spectral bandwidth at 50% intensity points
Δλ
5
nm
Wavelength temperature coefficient
Δλ/ΔT
0.25
nm/°C
Beam spread (50% peak intensity) parallel to junction plane
Θ||
10
degrees
Beam spread (50% peak intensity) perpendicular to junction plane
Θ|
25
degrees
Table 3: Electro-optical characteristics - Typical electro-optical characteristics, @100ns, 1 kHz
Note 1: As estimated by 𝑉
𝐹= 𝑅𝑆𝑖𝐹+ 𝑉
𝑔.
Characteristics
Symbol
LDPGAU1S03
LTPGAU1S1.5
LTPGAU1S03
LTPGAU1S09
LQPGAU1S1.5
LQPGAU1S03
Units
# of Emitting
stripes / cavities
2
3
3
3
4
4
Emitting area
75x5
37.5X10
75x10
225x10
37.5x15
75x15
µm
Optical Power at iF
- Minimum
- Typical
Po
14
16
8
9.5
21
24
70
75
9.5
11
25
30
W
W
Maximum Peak
forward Current
(100ns 1KHz)
iF
10
5
10
30
5
10
A
Typical Lasing
threshold current
ith
0.75
0.5
0.75
1.75
0.5
0.75
A
Typical Forward
voltage1 at iF
VF
6.67
9.25
10.6
12.8
13
14.7
V
Typical Series
Resistance
RS
0.257
0.55
0.41
0.21
0.685
0.52
Ω
Typical Band gap
Voltage Drop
Vg
4.1
6.5
6.5
6.5
9.5
9.5
V
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High volume 5.6mm TO metal package laser diode “LU” series
Electro-Optical Characteristics
Figure 1
LEFT:
Total Peak
Radiant Intensity
vs. Peak drive
Current
RIGHT:
Spectral
Distribution Plot
Figure 2
LEFT:
Far field Pattern
Parallel to
Junction Plane
RIGHT:
Far field Pattern
Perpendicular
to Junction
Plane
Figure 4: Package Mechanical Dimensions
0
10
20
30
40
50
60
70
80
90
100
010 20 30 40 50 60 70 80 90 100
Total Peak Radiant Intensity as a ratio of the
Maximum Output Power at the Maximum
Rated Current [%]
Peak Drive Current as a ratio of the
Maximum Rated Current
0
10
20
30
40
50
60
70
80
90
100
880 890 900 910 920 930
Relative Radiant Intensity [%]
Wavelength [nm]
0
10
20
30
40
50
60
70
80
90
100
-30 -20 -10 0 10 20 30
Relative Radiant Intensity [%]
Angle [degrees]
0
10
20
30
40
50
60
70
80
90
100
-50 -40 -30 -20 -10 0 10 20 30 40 50
Relative Radiant Intensity [%]
Angle [degrees]
Package LU:
Pin-out
1. LD Anode (+)
2. NC
3. LD Cathode (-)
Package inductance: 5nH
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High volume 5.6mm TO metal package laser diode “LU” series
Operating Conditions
The laser is operated by pulsing current in the forward bias direction.
The Excelitas warranty applies only to devices operated within the maximum rating, as specified. Exceeding these
conditions is likely to cause permanent “burn off” damage to the laser facet and consequently a significant reduction in
optical power. Operating the devices at increased duty cycles will ultimately and irreparably damage the crystal structure
due to internal heating effects.
Diodes are static sensitive and suitable precautions should be taken when removing the units from their antistatic
containers. Circuits should be designed to protect the diodes from high current and reverse voltage transients. Voltages
exceeding the reverse breakdown of the semiconductor junction are particularly damaging and have been shown to
cause degradation of power output.
Although the devices will continue to perform well at elevated temperatures for some thousands of hours, defect
mechanisms are accelerated. Optimum long term reliability will be attained with the semiconductor at or below room
temperature.
Adequate heat sinking should be employed when operated at maximum duty factor.
Warranty
A standard 12-month warranty following shipment applies. Any warranty is null and void if the package window has
been opened.
For Your Safety
Laser Radiation:
Under operation, these devices produce invisible electromagnetic radiation that may be harmful to the human eye. To
ensure that these laser components meet the requirements of Class IIIb laser products, they must not be operated
outside their maximum ratings. Power supplies used with these components must be such that the maximum peak
forward current cannot be exceeded. It is the responsibility of the user incorporating a laser into a system to certify the
Class of use and ensure that it meets the requirements of the ANSI or appropriate authority.
Further details can be obtained in the following publications:
21CFR 1040.10 – “Performance Standards for Light Emitting Products (Laser Products)”
ANSI Z136.1 – “American National Standard for Safe Use of lasers”
IEC 60825-1 – “Safety of Laser Products”
EKCELITAS' rzcnucuocuzs
www.excelitas.com Page 5 of 5 LXPGAUYSZ -Rev.2018-06
High volume 5.6mm TO metal package laser diode “LU” series
RoHS Compliance
This series of laser diodes are designed and built to be fully compliant with the European Union Directive 2011/65/EU –
Restriction of the use of certain Hazardous Substances (RoHS) in Electrical and Electronic equipment.
Excelitas Technologies
22001 Dumberry Road
Vaudreuil-Dorion, Quebec
Canada J7V 8P7
Telephone: (+1) 450 424 3300
Toll-free: (+1) 800 775 6786
Fax: (+1) 450 424 3345
detection@excelitas.com
Excelitas Technologies
GmbH & Co. KG
Wenzel-Jaksch-Str. 31
D-65199 Wiesbaden
Germany
Telephone: (+49) 611 492 430
Fax: (+49) 611 492 165
detection.europe@excelitas.com
Excelitas Technologies Singapore, Pte. Ltd.
8 Tractor Road
Singapore 627969
Telephone: (+65) 6775 2022 (Main number)
Telephone: (+65) 6770 4366 (Customer Service)
Fax: (+65) 6778-1752
detection.asia@excelitas.com
For a complete listing of our global offices, visit www.excelitas.com/locations
© 2013 Excelitas Technologies Corp. All rights reserved. The Excelitas logo and design are registered trademarks of Excelitas Technologies Corp. All other trademarks not owned by Excelitas Technologies or its subsidiaries that are
depicted herein are the property of their respective owners. Excelitas reserves the right to change this document at any time without notice and disclaims liability for editorial, pictorial or typographical errors.
About Excelitas Technologies
Excelitas Technologies is a global technology leader focused on delivering innovative, customized solutions to meet
the lighting, detection and other high-performance technology needs of OEM customers.
Excelitas has a long and rich history of serving our OEM customer base with optoelectronic sensors and modules
for more than 45 years beginning with PerkinElmer, EG&G, and RCA. The constant throughout has been our
innovation and commitment to delivering the highest quality solutions to our customers worldwide.
From aerospace and defense to analytical instrumentation, clinical diagnostics, medical, industrial, and safety and
security applications, Excelitas Technologies is committed to enabling our customers' success in their specialty end-
markets. Excelitas Technologies has approximately 5,000 employees in North America, Europe and Asia, serving
customers across the world.