JDS L4-9897510-100E High-power 10 w 9xx nm fiber-coupled diode laser with feedback protection Datasheet

COMMERCIAL LASERS
High-Power 10 W 9xx nm Fiber-Coupled Diode Laser with
Feedback Protection
6398-L4i Series
Key Features
• Full fiber laser feedback protection
• 10 W output power
• High reliability
• 105 µm aperture
• 0.22 or 0.15 N A
• Isolated electrical contacts
Application
• Fiber laser pumping
The JDSU L4i Series fiber-coupled diode laser is the latest solution in our L4
platform for the fiber laser pumping market.
The L4i design, which leverages the L4 footprint, offers a high degree of
feedback protection from any fiber laser wavelength. This feature allows end
users to operate the fiber laser in an environment virtually free from the risk of
feedback to the diode laser, resulting in a less costly solution than a traditional
isolation system.
Our 6398-L4i series diode lasers offer 10 W of power from a 105 µm fiber. In
addition, the L4i multimode pump modules take advantage of the existing global
JDSU manufacturing infrastructure to offer both high brightness and a small
footprint, with consistent high reliability in a cost-effective solution.
NORTH AMERICA : 800 498-JDSU (5378)
WORLDWIDE : +800 5378-JDSU
WEBSITE : www.jdsu.com
6398-L4i SERIES
2
(Specifications in mm unless otherwise noted.)
Standard Tolerances
mm:
x.x = ±0.5
x.xx = ±0.25
Dimensions Diagram
11.8
2x 4.3
2X
A
2.5
2x
1
13
17
Strain relief boot
Metal case
B
7.5
31
10
8.5
(3.9 )
1.5
3.9
7.7
2.54
Pinout
Pin
Description
A
B
Laser cathode (-)
Laser anode (+)
6398-L4i SERIES
3
Specifications for 0.22NA1
Parameter
Laser Characteristics
CW output power
Mean wavelength2
Spectral width (FWHM)
Slope efficiency
Conversion efficiency
Threshold current
Operating current
Forward voltage
Series resistance
Recommended case temperature
Wavelength tuning vs. temperature3
Wavelength tuning vs. output power
Fiber Characteristics
Fiber core diameter
Fiber numerical aperture
Fiber cladding
Fiber buffer
Fiber length
1. All performance data measured at 10 W, 25 °C, beginning of Life (BOL).
2. Weighted average "center of mass" spectral point at 25 °C at PO
3. Change in Δλ mean with case temperature over Top
Symbol
Minimum
Typical
Maximum
Po
λp 915 nm
λp 940 nm
λp 975 nm
Δλ
ηD 915 nm
ηD 940 nm
ηD 975 nm
η
Ith
Iop 915 nm
Iop 940 nm
Iop 975 nm
Vf
Rs
Tc
Δλ/ΔT
Δλ/ΔP
905 nm
928 nm
963 nm
20 °C
-
917 nm
939 nm
974 nm
3 nm
0.93 W/A
0.92 W/A
0.90 W/A
48%
600 mA
11.4 A
11.7 A
11.8 A
1.81 V
0.04 Ω
25 °C
0.35 nm/°C
1.0 nm/W
10 W
928 nm
950 nm
985 nm
6 nm
850 mA
12.5 A
12.8 A
13.0 A
2.0 V
40 °C
-
dc
NA
dcl
db
lf
0.20
0.9 m
105 µm
0.22
125 µm
250 µm
1m
0.24
-
6398-L4i SERIES
4
Specification for 0.15 NA1
Parameter
Laser Characteristics
CW output power
Mean wavelength2
Spectral width (FWHM)
Slope efficiency
Conversion efficiency
Threshold current
Operating current
Forward voltage
Series resistance
Recommended case temperature
Wavelength tuning vs. temperature3
Wavelength tuning vs. output power
Fiber Characteristics
Fiber core diameter
Fiber numerical aperture
Fiber cladding
Fiber buffer
Fiber length
Symbol
Minimum
Typical
Maximum
Po
λp 915 nm
λp 940 nm
λp 975 nm
Δλ
ηD 915 nm
ηD 940 nm
ηD 975 nm
η
Ith
Iop 915 nm
Iop 940 nm
Iop 975 nm
Vf
Rs
Tc
Δλ/ΔT
Δλ/ΔP
905 nm
928 nm
963 nm
20 °C
-
917 nm
939 nm
974 nm
3 nm
0.91 W/A
0.90 W/A
0.90 W/A
46%
600 mA
12.0 A
12.2 A
12.3 A
1.82 V
0.04 Ω
25 °C
0.35 nm/°C
1.0 nm/W
10 W
928 nm
950 nm
985 nm
6 nm
850 mA
13.0 A
13.5 A
13.5 A
2.0 V
40 °C
-
dc
NA
dcl
db
lf
0.135
0.9 m
105 µm
0.15
125 µm
250 µm
1m
0.165
-
1. All performance data measured at 10 W, 25 °C, beginning of Life (BOL).
2. Weighted average "center of mass" spectral point at 25 °C at PO
3. Change in Δλ mean with case temperature over Top
Fiber Laser Feedback Isolation Specification
Wavelength Range (nm)
Isolation (dB)
Reflectivity (%)
1060–1100
1050–1150
> 30
> 25
> 99.9%
> 99.7%
6398-L4i SERIES
5
Absolute Maximum Ratings
Parameter
Symbol
Minimum
Typical
Maximum
Operating current
Reverse voltage
Case operating temperature1
Storage temperature2
Lead soldering temperature, 10 s max
Relative humidity, non-condensing, ambient < 45°C
Electrostatic discharge (ESD)3
Fiber bend radius (long term deployment)4
Fiber axial pull force, 15 s
Fiber side pull force, 15 s
Iop
Vrvs
Top
Tstg
Tls
RH
Vesd
15 °C
-30 °C
30 mm
-
-
14 A
2.0 V
50 °C
70 °C
300 °C
85%
500 V
5N
2.5 N
1. Noncondensing, maximum
2. Noncondensing, 2000 hours
3. C = 100 pF, R = 1.5 kΩ, human body model, shown to be not damaging to its LI characteristics or its reliability, I-V curves may change in this ESD environment
4. Minimum bend radius of 30 mm is for long term mechanical fiber reliability; however for 0.15 NA some optical loss may occur and a minimum bend radius of 45 mm is recommended for layout with
multiple fiber coils.
Configurations
Product Code
Wavelength Range
Fiber NA
L4-9891510-100E
L4-9891510-100F
L4-9894010-100E
L4-9894010-100F
L4-9897510-100E
L4-9897510-100F
905 – 928 nm
905 – 928 nm
928 – 950 nm
928 – 950 nm
963 – 985 nm
963 – 985 nm
0.22
0.15
0.22
0.15
0.22
0.15
Ordering Information
For more information on this or other products and their availability, please contact your local JDSU account manager or
JDSU directly at 1-800-498-JDSU (5378) in North America and +800-5378-JDSU worldwide or via e-mail at
[email protected].
Sample: L4-9891510-100E
6398-L4i SERIES
User Safety
Safety and Operating Considerations
The laser light emitted from this diode laser is invisible and may be harmful to the human eye. Avoid looking directly into the
diode laser or into the collimated beam along its optical axis when the device is in operation.
CAUTION: THE USE OF OPTICAL INSTRUMENTS WITH THIS PRODUCT WILL INCREASE EYE HAZARD.
Operating the diode laser outside of its maximum ratings may cause device failure or a safety hazard. Power supplies used with
the component must be employed such that the maximum peak optical power cannot be exceeded. CW diode lasers may be
damaged by excessive drive current or switching transients. When power supplies are used, the diode laser should be connected
with the main power on and the output voltage at zero. The current should be increased slowly while the diode laser output
power and the drive current are monitored.
Device degradation accelerates with increased temperature, and therefore careful attention to minimizing the case temperature
is advised. For example, life expectancy will decrease by a factor of four if the case is operated at 50 °C rather than 25 °C.
A proper heatsink for the diode laser on a thermal radiator will greatly enhance laser life. Firmly mount the laser on a radiator
with a thermal impedance of less than 0.5 °C/W for increased reliability.
ESD PROTECTION—Electrostatic discharge is the primary cause of unexpected diode laser failure. Take extreme precaution
to prevent ESD. Use wrist straps, grounded work surfaces, and rigorous antistatic techniques when handling diode lasers.
Labeling
Because of the small size of these devices,
each of the labels shown is attached to
the individual shipping container. They
are illustrated here to comply with 21
CFR 1040.10 as applicable under the
Radiation Control for Health and Safety
Act of 1968.
Serial Number Identification Label
L4-ABC123
Serial:
L4-ABC123
Model:
L4-9891510-100B
JDSU
3 Hongmian Road
Futian Free Trade Zone
Shenzhen 518038
Made in: China
12/05/07
21 CFR 1040.10 Compliance
Output Power Danger Label
DANGER
INVISIBLE LASER RADIATION*
AVOID EYE OR SKIN EXPOSURE TO
DIRECT OR SCATTERED RADIATION
GaAlAs Diode CW 10 W max.
CLASS IV LASER PRODUCT
*SEE MANUAL
NORTH AMERICA : 800 498-JDSU (5378)
3110
WORLDWIDE : +800 5378-JDSU
Product specifications and descriptions in this document subject to change without notice. © 2008 JDS Uniphase Corporation 30149466 000 0708
WEBSITE : www.jdsu.com
6398L4i.DS.CL.AE
July 2008
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