Up to 500 mW Fiber Bragg Grating Stabilized 980 nm
Pump Modules
2900-FL Series
Key Features
• Very high kink-free powers to 500 mW
• Low-profile, epoxy-free, and flux-free 14-PIN butterfly
planar package
• Fiber Bragg grating stabilization
• Wavelength selection available
• Tight tracking of fiber-coupled power
• Integrated thermoelectric cooler, thermistor, and
monitor diode
• High dynamic range
• Excellent low power stability
Applications
• Next-generation, dense wavelength
division multiplexing (DWDM)
erbium-doped fiber amplifiers (EDFAs)
requiring the highest power with
“locked” wavelength emission
• Reduced pump-count EDFA
architectures
• Very long distance CATV trunks and
very high node-count distribution
The JDSU 2900-FL Series 980 nm pump module uses a planar construction with
chip on subcarrier. The high-power JDSU laser chip is hermetically sealed in a
low-profile, epoxy- and flux-free, 14-pin butterfly package and fitted with a
thermistor, thermoelectric cooler, and monitor diode. The module meets the
stringent requirements of the telecommunications industry, including Telcordia™
GR-468-CORE for hermetic 980 nm pump modules.
The 2900-FL Series pump module uses fiber Bragg grating stabilization to “lock”
the emission wavelength. It provides a noise-free narrowband spectrum, even
under changes in temperature, drive current, and optical feedback. Wavelength
selection is available for applications that require the highest performance in
spectrum control with the highest available powers.
The 2900-FL Series design also offers tight tracking of fiber-coupled power via the
monitor diode signal.
Compliance
• Telcordia GR-468-CORE
NORTH AMERICA
:
800 498-JDSU (5378)
WORLDWIDE
:
+800 5378-JDSU
WEBSITE
:
www.jdsu.com
2900-FL SERIES
2
Dimensions Diagram
250 µm Bare Fiber Type A Wiring
(Note: Specifications in mm unless otherwise noted; tolerance = .x ± .3, .xx ± .20
The module pigtail consists of 250 µm buffered, Corning PureMode
TM
HI-1060
single-mode fiber.)
45.04
30.0
1600 M I N (1900 NOM )
1000 NOM . TO CENTER OF GRATING
26.0
20.8
17.8
1 .5
500 NOM . TO C/L OF SPLICE (OPTIONAL)
4 0 . 5 N O M . 1 5 . 5 1 2 .7
9.0
STRAIN RELIEF
FLEXIBLE <=400
MICRON RECOAT
4.6
4X
2 .5 0 TH RU
1 2X 2 . 5 L E A D S P A C I N G
TOLERANCE IS NON-ACCUMULATIVE
14X 0.51 LEAD WIDTH
260 < RECOAT <
935 (MICRON)
2.8
4.0 0
1.50
7 . 7 ± 0. 2 0
RED NON-XYLENE MARK
FOR RECOAT WITH 295 35 μm
3.9
1.5
5 . 6 TO L EA D C/ L
2X ~ 5
5. 26
0.25 LEAD THICKNESS
Pinout
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
Cooler (+)
Thermistor
Monitor PD Anode
Monitor PD Cathode
Thermistor
N/C
N/C
N/C
N/C
Laser Anode
Laser Cathode
N/C
Case Ground
Cooler (-)
7
6
5
4
3
2
1
8
9
10
11
12
13
14
2900-FL SERIES
3
Table 1: Absolute Maximum Ratings
Parameter
Operating case temperature
Storage temperature
LD submount temperature
LD reverse voltage
LD forward current
LD reverse current
PD reverse voltage
PD forward current
Electrostatic discharge (ESD)
TEC current
TEC voltage
Axial pull force
Side pull force
Fiber bend radius
Relative humidity
Lead soldering time
Symbol
T
op
T
stg
T
LD
V
r
I
f_max
V
PD
I
PD
V
ESD
I
TEC
V
TEC
Test Condition
-
2000 hours
-
-
48 hours maximum
-
-
-
C = 100 pF, R = 1.5
Ω,
human body model
-
-
3 x 10 seconds
3 x 10 seconds
-
40 °C
300 °C
Minimum
-20 °C
-40 °C
0 °C
-
-
-
-
-
-
-
-
-
-
16 mm
5%
-
Maximum
75 °C
85 °C
50 °C
2.5 V
1100 mA
10 µA
20 V
10 mA
1000 V
4.0 A
4.5 V
5N
2.5 N
-
95%
10 seconds
R
H
Note: Absolute maximum ratings are the maximum stresses that may be applied to the pump module for short periods of time without causing damage. Stresses in excess of the absolute maximum ratings
can permanently damage the device. Exposure to absolute maximum ratings for extended periods, or exposure to more than one absolute maximum rating simultaneously may adversely affect device
reliability.
Table 2: Operating Parameters
(BOL, T
case
= 0 to 75 °C, T
LD
= 25 °C, -50 dB reflection, unless noted otherwise)
Product
Code
Maximum
Operating
Power
P
op
(mW)
1,3
Maximum
Operating
Current
I
op
(mA)
Maximum
1
560
590
630
640
650
660
680
720
760
805
840
875
900
Minimum
Kink-Free
Power
P
max
(mW)
2
Kink-Free
Current
I
max
(mA)
3
Maximum
2
29-xxxx-310-FL
29-xxxx-320-FL
29-xxxx-330-FL
29-xxxx-340-FL
29-xxxx-350-FL
29-xxxx-360-FL
29-xxxx-380-FL
29-xxxx-400-FL
29-xxxx-420-FL
29-xxxx-440-FL
29-xxxx-460-FL
29-xxxx-480-FL
29-xxxx-500-FL
280
290
300
310
315
325
340
360
380
400
410
430
450
310
320
330
340
350
360
380
400
420
440
460
480
500
640
670
700
700
700
700
760
805
855
910
950
985
1000
1. The maximum operating power (P
op
) will be achieved at a device-specific maximum operating current (I
op
). The individual value of I
op
is noted on the hardcopy data sheet shipped with the device.
All values of I
op
are limited by the maximum value listed in Table 2.
2. The module is kink-free up to a minimum kink-free power (P
max
) that the module will achieve at a device-specific kink-free current (I
max
). The individual value of I
max
is noted on the hardcopy data sheet
shipped with the device. All values of I
max
are limited by the maximum value listed in Table 2.
3. The pump laser shall never be operated at a power higher than the P
op
throughout its lifetime. At beginning of life (BOL), the operating current shall never be higher than the device-specific I
op
that is
noted on the hardcopy data sheet shipped with the device. At end of life (EOL), the operating current shall never be higher than the device-specific I
max
that is noted on the hardcopy data sheet shipped
with the device.
2900-FL SERIES
4
Table 3: Available Peak Wavelength Selection
(T
amb
= 25±3 °C, 50 mW < P < P
op
)
Product Code
29-7402-xxx-FL
29-7552-xxx-FL
29-7602-xxx-FL
29-7702-xxx-FL
Minimum Peak Wavelength
973.5 nm
974.5 nm
975.0 nm
976.0 nm
Maximum Peak Wavelength
975.0 nm
976.5 nm
977.0 nm
978.0 nm
Table 4: Electro-Optical Performance
(BOL,T
case
= 0 to 75 °C,T
LD
= 25 °C, -50 dB reflection, unless noted otherwise)
Parameter
Threshold current
Forward voltage
Spectral width
Peak wavelength tuning
Side-mode suppression ratio
Relative optical power stability
Symbol
I
th
V
f
Δλ
RMS
Δλ
P
/ΔΤ
amb
SMSR
Test Condition
-
I
f
= I
op
50 mW < P < P
op
50 mW < P < P
op
50 mW < P < P
op
Peak-to-peak, T = 10 min,
50 kHz sampling, T
case
= 25 °C
20 mW < P < P
op
12 mW < P < 20 mW
3.5 mW < P < 12 mW
20 mW < P < P
op
1
20 mW < P < P
op
2
20 mW < P < P
op
T
case
= 75 °C
T
case
= 75 °C
-
-
T
case
= 75 °C, BOL
T
case
= 75 °C, EOL
Minimum
-
-
-
-
15 dB
Maximum
30 mA
2.5 V
2.0 nm
0.02 nm/°C
-
Tracking error
Tracking ratio
Monitor diode responsivity
TEC current
TEC voltage
Thermistor resistance
Thermistor constant
Module power consumption
TE
TR
Resp
BF
I
TEC
V
TEC
R
th
B
-
-
-
-8%
0.90
2 µA/mW
-
-
9.5 kΩ
3600 K
-
-
4%
10%
25%
8%
1.10
10 µA/mW
1.9 A
2.5 V
10.5 kΩ
4200 K
8.2 W
9.5 W
1. The tracking error is defined as the normalized change of output power relative to the operating power over case temperature range (0 °C to 75 °C), at constant back-face monitor current corresponding
to the operating power at 25 °C.
2. The tracking ratio is a measure of the front-to-back tracking when the output power is varied. On a plot of optical power versus back-face photocurrent, a straight line is drawn between the minimum
power (20 mW) and the operating power (P
op
) points. The tracking ratio is defined as the ratio between measured optical power (shown as data points on the plot) to the value derived from the straight line.
2900-FL SERIES
5
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
customer.service@jdsu.com.
Sample: 29-7402-310-FL
29-
Code
7402
7552
7602
7702
Peak Wavelength
973.5
to
975.0
nm
974.5
to
976.5
nm
975.0
to
977.0
nm
976.0
to
978.0
nm
-
Code
310
320
330
340
350
360
380
400
420
440
460
480
500
-FL
Minimum Kink-Free Power
310 mW
320 mW
330 mW
340 mW
350 mW
360 mW
380 mW
400 mW
420 mW
440 mW
460 mW
480 mW
500 mW
User Safety
Safety and Operating Considerations
The laser light emitted from this laser diode is invisible and may be harmful to the human eye. Avoid looking directly into the
fiber when the device is in operation.
CAUTION: THE USE OF OPTICAL INSTRUMENTS WITH THIS PRODUCT INCREASES EYE HAZARD.
Operating the laser diode outside of its maximum ratings may cause device failure or a safety hazard. Power supplies used with
this component cannot exceed maximum peak optical power.
CW laser diodes may be damaged by excessive drive current or switching transients. When using power supplies, the laser
diode should be connected with the main power on and the output voltage at zero. The current should be increased slowly
while monitoring the laser diode output power and the drive current. Careful attention to heatsinking and proper mounting
of this device is required to ensure specified performance over its operating life. To maximize thermal transfer to the heatsink,
the heatsink mounting surface must be flat to within .001” and the mounting screws must be torqued down to 1.5 in.-lb.
ESD PROTECTION—Electrostatic discharge (ESD) is the primary cause of unexpected laser diode failure. Take extreme
precaution to prevent ESD. Use wrist straps, grounded work surfaces, and rigorous antistatic techniques when handling laser diodes.
