Laser
Diodes
DFB-xxx-BT-xx-2.5-x-xx-LC-476 TOSA Module
Description
The DFB-xxx-BT-xx-2.5-x-xx-LC-xxx DFB transmitter
optical subassembly (TOSA) module with integrated
laser, monitor PD and micro-TEC in an 9-pin small
form factor package. It is designed for direct
modulation DWDM SONET OC-48, SDH STM-16,GbE,
Fiber channel applications for use in transceivers or
other transmit/transponder modules.
The TOSA will be available for up to 200km
@1550nm (3600ps/nm) reaches. The device is
available in the full range of C-band ITU-T
wavelengths on a 100GHz channel spacing.
Features
Applications
C-band wavelengths selectable on ITU-
T 100GHz channel spacing
Direct modulation up to 2.7 Gbps
Compact MSA compliant 9-pin box
TOSA package
Meets GR 468 reliability specifications
Available SC/APC and FC/APC or LC
receptacle style
SFP pluggable transcievers for DWDM,
CWDM, SONET/SDH, GbE and fiber
channel
1550-nm line cards
Digital video transmission
01-00-0476 REV 003
© Applied Optoelectronics, Inc. 2009
1
Laser Components GmbH
Germany
Werner-von-Siemens-Str. 15
82140 Olching
Tel: +49 8142 2864 – 0
Fax: +49 8142 2864 – 11
info@lasercomponents.com
www.lasercomponents.com
Laser
Diodes
DFB-xxx-BT-xx-2.5-x-xx-LC-476 TOSA Module
Table 1. Absolute Maximum Ratings
Parameter
Symbol
T
c
Tstg
If
Vr
Vrpd
Operating Case Temperature
Storage Temperature
Laser Forward Current
Laser Reverse Bias
Photodiode Reverse Bias
Condition
I=Iop
--
--
--
--
Min
-5
-40
--
--
--
Max
75
85
120
2
10
Unit
°C
°C
mA
V
V
Table 2. Electrical and Optical Characteristics
BOL, unless stated otherwise, T
l
=35 °C to 45 °C
Parameter
Symbol
Laser Operating Temperature
T
L
Laser Setpoint Temperature
T
L
Slope Efficiency
SE
Threshold Current (BOL)
Forward Voltage
Operating Current
Optical Output Power
Center Wavelength (Specify ITU-T
channels)
Center wavelength tuning
Center Wavelength Tolerance
Linewidth (3 dB)
Side-mode Suppression Ratio
Optical Isolation
λ
c
Drift vs T
c
Monitor Current
Monitor Dark Current
Tracking Error
Thermistor Resistance
Thermistor Setpoint Resistance
Thermistor B Constant
TEC Power Consumption (See
ordering options)
I
th
V
F
I
o
P
o
λ
c
Δλ
c
/
ΔT
L
Δλ
c
FWHM
I
S
Δλ
c
/
ΔT
c
I
mon
I
D
γ
R
t
R
Th
B
P
TEC
Test Conditions
-5 °C
≤
T
c
≤
75°C
P
o
= 2 mW, CW
P
o
= 6 mW, CW
T
L
=35-45 °C
P = P
o
,CW, T
L
=35 -45°C
CW, T
L
=35-45 °C
CW, See Table 4
35 °C
≤
T
L
≤
45°C
@ T
L
, See Table 4 for
λ
c
P = P
o
,CW
P = P
o
,CW
-40 °C
≤
T
c
≤
85°C
-40 °C
≤
T
c
≤
85°C
V
rpd
=5 V
V
rpd
=5 V
I
mon
=const,
γ=10
log (P
o
/2 mW) [dB]
T
L
=25 °C
T
L
=35-45 °C
T
L
=25 °C
ΔT=50°C,
-5 °C
≤
T
c
≤
75°C
ΔT=50°C,
-20 °C
≤
T
c
≤
85°C
ΔT=50°C,
-40 °C
≤
T
c
≤
85°C
Min
35
35
0.06
0.10
--
--
1
1528
--
-0.1
--
30
30
--
10
--
-0.5
9.5
4.3
--
--
--
--
0.09
--
--
--
--
--
--
--
--
3900
--
--
--
Typ
Max
45
45
0.13
0.15
30
1.9
80
6.0
1563
0.12
+0.1
10
--
--
-0.40
150
100
0.5
10.5
6.5
--
0.32
0.40
0.45
Unit
°C
°C
mW/mA
mW/mA
mA
V
mA
mW
nm
nm/°C
nm
MHz
dB
dB
pm/°C
μA/mW
nA
dB
KΩ
KΩ
K
W
18
1.2
Table 3. RF Characteristics
Parameter
Input Impedance
Modulation Current
Extinction Ratio
Spectral Width
Full Width at –3 dB
Full Width at –20 dB
Dispersion Penalty
BER=1x10
-10
2.488 Gbps, If=Iop, ER=9.2dB
Symbol
Zin
Imod
ER
P = P
o
*Note 1
*Note 1
Test Conditions
Min
--
8.8
Typ
25
9.0
0.1
0.3
Max
--
50
9.2
0.3
1.0
2.0
2.0
2.0
Unit
Ω
mA
dB
nm
nm
dB
dB
dB
Δλ
ΔS
*Note 1 – Modulated at 2.488Gbps, P = P
o
,BER=1x10
-10
, NRZ code, PRBS 2
23
-1
*Note 2 – consult factory for availability
720 ps/nm
1800 ps/nm
3600 ps/nm *Note 2
01-00-0476 REV 00
© Applied Optoelectronics, Inc. 2009
2
Laser Components GmbH
Germany
Werner-von-Siemens-Str. 15
82140 Olching
Tel: +49 8142 2864 – 0
Fax: +49 8142 2864 – 11
info@lasercomponents.com
www.lasercomponents.com
Laser
Diodes
DFB-xxx-BT-xx-2.5-x-xx-LC-476 TOSA Module
Electrical Schematics
Pin Information
Pin No.
1
2
3
4
5
6
7
8
9
Description
Thermoelectric Cooler (-)
Thermoelectric Cooler (+)
RF Ground, LD anode, PD cathode
LD cathode (RF data)
RF GND, LD anode, PD cathode
PD Anode
LD cathode (Laser bias)
Thermistor
Thermistor
01-00-0476 REV 003
© Applied Optoelectronics, Inc. 2009
3
Laser Components GmbH
Germany
Werner-von-Siemens-Str. 15
82140 Olching
Tel: +49 8142 2864 – 0
Fax: +49 8142 2864 – 11
info@lasercomponents.com
www.lasercomponents.com
Laser
Diodes
DFB-xxx-BT-xx-2.5-x-xx-LC-476 TOSA Module
Dimensions are in millimeters
Outline Diagram
01-00-0476 REV 003
© Applied Optoelectronics, Inc. 2009
4
Laser Components GmbH
Germany
Werner-von-Siemens-Str. 15
82140 Olching
Tel: +49 8142 2864 – 0
Fax: +49 8142 2864 – 11
info@lasercomponents.com
www.lasercomponents.com
Laser
Diodes
DFB-xxx-BT-xx-2.5-x-xx-LC-476 TOSA Module
Ordering Options
DFB-xxx-BT-xx-2.5-x-xx-LC-476
Channel designation - see
Table 4 for wavelength
ordering options.
02=2mW
06=6mW
A= -5
o
C — 75
o
C
B= -20
o
C — 85
o
C
C= -40
o
C — 85
o
C
LC=LC Receptacle
SR=Short Reach (720 ps/nm, 40km@1550nm)
LR=Long Reach (1800 ps/nm, 100km@1550nm)
ER=Extended Reach (3600 ps/nm, 200km@1550nm)**
** only offered in 6mW version
Table 4. Wavelength Ordering Options
Channel
Designation
Frequency
(THz)
Wavelength
(nm)*
Channel
Designation
Frequency
(THz)
Wavelength
(nm)*
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
191.7
191.8
191.9
192.0
192.1
192.2
192.3
192.4
192.5
192.6
192.7
192.8
192.9
193.0
193.1
193.2
193.3
193.4
193.5
193.6
193.7
193.8
193.9
1563.86
1563.05
1562.23
1561.42
1560.61
1559.79
1558.98
1558.17
1557.36
1556.55
1555.75
1554.94
1554.13
1553.33
1552.52
1551.72
1550.92
1550.12
1549.32
1548.51
1547.72
1546.92
1546.12
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
194.0
194.1
194.2
194.3
194.4
194.5
194.6
194.7
194.8
194.9
195.0
195.1
195.2
195.3
195.4
195.5
195.6
195.7
195.8
195.9
196.0
196.1
1545.32
1544.53
1543.73
1542.94
1542.14
1541.35
1540.56
1539.77
1538.98
1538.19
1537.4
1536.61
1535.82
1535.04
1534.25
1533.47
1532.68
1531.9
1531.12
1530.33
1529.55
1528.77
* Please consult the factory for wavelength availability
01-00-0476 REV 003
© Applied Optoelectronics, Inc. 2009
5
Laser Components GmbH
Germany
Werner-von-Siemens-Str. 15
82140 Olching
Tel: +49 8142 2864 – 0
Fax: +49 8142 2864 – 11
info@lasercomponents.com
www.lasercomponents.com
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