2.5Gb/s 1550nm DFB Laser Datasheet
14 pin Butterfly Package
Description
The EM4 distributed feedback laser (DFB) is based on direct
modulation of the InGaAsP/InP multi-quantum well (MQW) laser
diode for data rate up to 2.5 Gb/s. The DFB is ideal for transmission
distances of up to 170km for both telecommunications and CATV
applications.
The DFB laser device is hermetically sealed into an industry standard
14 pin butterfly metal ceramic package. The butterfly package
features an InGaAsP/InP laser chip integrated with an internal optical
isolator, an InGaAs monitor photodiode and thermister for power and
temperature control respectively with an attached single mode fiber
pigtail. The fiber pigtail comes with a standard FC/APC optical
connector. Alternative optical connector options are also available.
Application
•
•
•
OC-48/STM-16 SONET/SDH Metro or Long Reach
WDM Metro or Long Haul
Digital Return Path for CATV
Absolute Max Ratings
Parameter
Operating Case Temperature
Storage Case Temperature
Laser Drive Current
Laser Reverse Voltage
PD Forward Current
PD Reverse Voltage
TEC Current
TEC Voltage
Lead Soldering Time
Lead Soldering Temperature
Symbol
T
case
T
ST
I
OP
V
R
I
PD
V
PD
I
TEC
V
TEC
Min
-5
-40
-
-
-
-
-
-
-
-
Max
75
85
200
2
2
15
1.4
2.2
10
260
Unit
C
C
mA
V
mA
V
A
V
sec
o
C
o
o
Page 1 of 4;
May 2005, Revision 3.0
LASER COMPONENTS GmbH, Werner-von-Siemens-Str. 15, 82140 Olching, Germany, Phone: +49 8142 2864 0, Fax: +49 8142 2864 11
info@lasercomponents.com
2.5Gb/s 1550nm DFB Laser Datasheet
14 pin Butterfly Package
Electrical and Optical Specifications
Unless otherwise noted, specifications are beginning of life (BOL), T
case
= 25
o
C
Parameter
Operating Chip Temperature
Threshold Current
Laser Drive Current
Slope Efficiency
Forward Voltage
Output Power
Rise and Fall Time
Spectral Width
Side Mode Suppression
Input Impedance
Bandwidth, -3dB
Electrical Return Loss
Monitor PD Current
Monitor PD Dark Current
Monitor PD Capacitance
Thermistor Resistance
Thermistor B Constant
TEC Current
TEC Voltage
Power Dissipation
Optical Isolation
Tracking Error
Dispersion Penalty
Sym
T
chip
I
th
I
op
η
V
F
P
o
τ
R
,τ
F
∆λ
20
SMSR
Z
in
S
21
S
11
I
PD
I
D
C
R
th
β
I
TEC
V
TEC
Conditions
CW
CW, P=P
o
Min
20
Typ.
5
60
Max
35
30
80
2
Unit
C
mA
mA
W/A
V
dBm
ps
nm
dB
ohms
GHz
dB
µA
nA
pF
Ω
K
A
V
W
dB
dB
dB
o
0.05
CW
CW, I=I
op
20%-80%, peak-to-peak
CW, P=P
out
DC – 3 GHz
V
bias
= -5V
V
bias
= -5V
V
bias
= -5V, f = 1MHz
T
laser
= 25
o
C
T
laser
= 25
o
C, T
case
= 70
o
C
T
laser
= 25
o
C, T
case
= 70
o
C
T
laser
= 25
o
C, T
case
= 70
o
C
30
-0.5
[1],[2], [3]
0
120
0.4
35
2.5
8
100
25
3
10
50
20
10000
3033
1.0
2.0
2
+0.5
2
DP
[1] - 2.5 Gb/s NRZ, PRBS 2
23
-1, BER 10
-12
[2] - LR, 80km SMF-28, 1600 ps/nm
[3] – 170km SMF-28, 3400 ps/nm
Page 2 of 4;
May 2005, Revision 3.0
LASER COMPONENTS GmbH, Werner-von-Siemens-Str. 15, 82140 Olching, Germany, Phone: +49 8142 2864 0, Fax: +49 8142 2864 11
info@lasercomponents.com
2.5Gb/s 1550nm DFB Laser Datasheet
14 pin Butterfly Package
Package Dimensions (mm)
Pin-Out
Pin
No.
1
2
3
4
5
6
7
Function
Thermistor
Thermistor
Laser Cathode (-)
Monitor PD Anode
Monitor PD Cathode
TEC (+)
TEC (-)
Pin
No.
8
9
10
11
12
13
14
Function
Case GND, Laser Anode
Case GND, Laser Anode
Case GND, Laser Anode
Case GND, Laser Anode
LD Modulation (-)
Case GND, Laser Anode
Case GND, Laser Anode
Page 3 of 4;
May 2005, Revision 3.0
LASER COMPONENTS GmbH, Werner-von-Siemens-Str. 15, 82140 Olching, Germany, Phone: +49 8142 2864 0, Fax: +49 8142 2864 11
info@lasercomponents.com
2.5Gb/s 1550nm DFB Laser Datasheet
14 pin Butterfly Package
Ordering Information
S
T
D
-
D
F
B
-
λ
λ
-
2
5
y
Device Code
STD-DFB-00-25F
STD-DFB-01-25F
STD-DFB-01-25G
STD-DFB-01-25S
STD-DFB-01-25T
STD-DFB-01-25L
Description
14pin BF DFB, FC/APC, TDM
14pin BF DFB, FC/APC, Channel 01
14pin BF DFB, FC/PC, Channel 01
14pin BF DFB, SC/APC, Channel 01
14pin BF DFB, SC/PC, Channel 01
14pin BF DFB, LC/PC, Channel 01
ITU
λ
-
1560.61
1560.61
1560.61
1560.61
1560.61
Optical Connector
FC/APC
[F]
FC/APC
[F]
FC/PC
[G]
SC/APC
[S]
SC/PC
[T]
LC/PC
[L]
Channel
No.
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
Frequency
(THz)
196.0
195.9
195.8
195.7
195.6
195.5
195.4
195.3
195.2
195.1
195.0
194.9
194.8
194.7
194.6
194.5
194.4
194.3
194.2
194.1
Wavelength
(nm)
1529.55
1530.33
1531.12
1531.90
1532.68
1533.47
1534.25
1535.04
1535.82
1536.61
1537.4
1538.18
1538.98
1539.77
1540.65
1541.35
1542.14
1542.94
1543.73
1544.53
Channel
No.
20
19
18
17
16
15
14
13
12
11
10
09
08
07
06
05
04
03
02
01
Frequency
(THz)
194.0
193.9
193.8
193.7
193.6
193.5
193.4
193.3
193.2
193.1
193.0
192.9
192.8
192.7
192.6
192.5
192.4
192.3
192.2
192.1
Wavelength
(nm)
1545.32
1546.12
1546.92
1547.72
1548.51
1549.32
1550.12
1550.92
1551.72
1552.52
1553.33
1554.13
1554.94
1555.75
1556.56
1557.36
1558.17
1558.98
1559.79
1560.61
The information published in this datasheet is believed to be accurate and reliable. EM4, Inc. reserves the right to change without notice
including but not limited to the design, specification, form, fit or function relating to the product herein. Copyright 2004 EM4, Inc. All rights
reserved.
Page 4 of 4;
May 2005, Revision 3.0
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06/06
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std-dfb-xx-25x.pdf
LASER COMPONENTS GmbH, Werner-von-Siemens-Str. 15, 82140 Olching, Germany, Phone: +49 8142 2864 0, Fax: +49 8142 2864 11
info@lasercomponents.com
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