PowerSource 1905 LMI
TM
CW Laser Module with Optical Isolator, Up to 20 mW, L-Band
This laser module contains an Avanex SLMQW DFB laser and is designed for use with exter-
nal modulation optimized for high power Wavelength Division Multiplexed (WDM) systems.
The module incorporates a polarization maintaining fiber pigtail, thermoelectric cooler, preci-
sion thermistor, and optical isolator for stable operation under all conditions.
FEATURES
• Up to 20 mW Output Power
• Wavelength Selection According to
ITU-T G.692 from 1570.00 nm to
1610.05 nm
• 50 GHz Channel Spacing Available
• Optimized for Use with LiNbO
3
External Modulator
• Polarization Maintaining Fiber Pigtail
• RIN -140 dB/Hz
• Industry Standard Hermetic 14-Pin
Butterfly Package
• InGaAsP Distributed FeedBack (DFB)
SLMQW Laser
OPTICAL CHARACTERISTICS
Table 1, all limits start of life (except I
t
, V
t
), Tsubmount = 25°C, Tc = 25°C, P
f
, V = -5 V, unless otherwise stated.
Parameter
Operating Case Temperature
Output Power
Threshold Current
Sym
Tc
P
f
I
th
V
f
I
f
λ
Δλ
λ
Twave
Δλ/Δ
Twave
λ
/Δ
λ/
/
Δλ/Δ
Tc
λ
/Δ
λ/
/
Δλ
λ
ER
SMSR
RIN
Im
Id
I
t
V
t
R
th
β
Conditions
Twave = 15 to 30°C
Twave = 15 to 25°C
Min
-5
10
20
Typ
Max
70
Unit
°C
mW
mW
40
P
f
, Pin 3 & 11
10 mW, Pin 3 & 11
20 mW, Pin 3 & 11
See Table 3
@Twave, See Table 3
for
λ
Target
P
f
= 10 mW
P
f
= 20 mW
1570.00
-0.1
15
15
90
0.2
CW, P
f
, -3 dB
20
P
f
10 MHz to 10 GHz @ P
f
V = -5 V, @ 10 mW
V = -5 V, @ 20 mW
V = -5 V
See Note 1
See Note 1
9.7
3800
3900
0.85
1.6
0.1
0.2
40
-135
1
2
0.1
1.3
2.5
10.3
4000
2
0.5
5
2.5
120
210
1610.05
+0.1
30
25
mA
V
mA
mA
nm
nm
˚C
˚C
pm/°C
pm/°C
MHz
dB
dB
dB/Hz
mA
mA
µA
A
V
kΩ
k
K
APPLICATIONS
• Ultra Long-Haul 2.5, 10 Gb/s
Synchronous Digital Transmission
Systems
• WDM Submarine Terminal Digital
Transmission Systems
• Instrumentation
Forward Voltage
Laser Forward Current
Emission Wavelength
Δ
(Emitted-Target) Wavelength
Submount Temperature
Wavelength Drift vs Twave
Wavelength Drift vs Tcase
Spectral Width
TE/TM Extinction Ratio
Side Mode Suppression Ratio
Relative Intensity Noise
Photodiode Current
Photodiode Dark Current
TEC Current
TEC Voltage
Thermistor Resistance
Thermistor
β
Constant
Note 1: Tc = 70°C, Tsubmount = 20°C, @1.2 x P
f
D2306
1
PowerSource 1905 LMI
TM
CW Laser Module with Optical Isolator, Up to 20 mW, L-Band
ABSOLUTE MAXIMUM RATINGS
Table 2
Parameter
Operating Case Temperature
Storage Temperature
Laser Forward Current
Laser Reverse Voltage
Photodiode Forward Current
Photodiode Reverse Voltage
TEC Voltage
TEC Current
Lead Soldering Time (at 260°C)
Fiber Bend Radius
Packing Mounting Screw Torque
30
0.2
Conditions
Min
-10
-40
Max
70
85
350
2
1
20
2.8
1.4
10
Unit
°C
°C
mA
V
mA
V
V
A
s
mm
N.m
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device.
These are absolute stress ratings only.
DEFINITIONS
Twave
Twave is the submount temperature at which the laser emission wavelength reaches the target wavelength with an accuracy of better than:
λ
target
± 0.1 nm. This temperature is calculated during manufacturing according to: Twave = 25°C + (1/C)*(λ
target
-
λ
wavelength drift with temperature (in nm/°C).
Emitted Wavelength Drift vs Tcase
Absolute value of maximum emitted wavelength deviation per unit of case temperature (°C) when Tcase varies from min to max operating
conditions. Wavelength is stabilized through the thermal regulation of the laser chip based on the thermistor reading.
Emitted Wavelength Drift vs Twave
Maximum emitted wavelength deviation per unit of submount temperature (°C) when Tsubmount varies from min to max conditions.
Wavelength is stabilized through the thermal regulation of the laser chip based on the thermistor reading.
25°C
), where C is the laser
D2306
2
PowerSource 1905 LMI
TM
CW Laser Module with Optical Isolator, Up to 20 mW, L-Band
MECHANICAL DETAILS
Dimensions are in mm
Fiber length 800 mm to 1100 mm
(including optical connector)
PIN-OUT
N˚
Description
N˚
Description
1
2
3
4
5
6
7
Thermistor
Thermistor
Laser DC Bias (-)
Photodetector Anode (-)
Photodetector Cathode (+)
TEC (+)
TEC (-)
8
9
10
11
12
13
14
Case Ground
Case Ground
Not Connected
RF Common (+)
Laser RF Input (-)
RF Common (+)
Not Connected
D2306
3
PowerSource 1905 LMI
TM
CW Laser Module with Optical Isolator, Up to 20 mW, L-Band
MARKING, PACKING AND DELIVERABLE DATA
Device marking
Each device includes the following information as a minimum:
1. Avanex logo
2. Product family name: 1905 LMI
3. Product code: 3CN code (see Ordering Information section)
4. Serial number
Packing
Each device is individually packed in an antistatic container and in such a manner as to prevent damage in transit.
The packaging shall include the following information:
1. Avanex logo
2. Product family name: PowerSource
TM
1905 LMI
3. Product code: 3CN code (see Ordering Information section)
4. Serial number
5. Hazard warning label (ESD)
6. Laser Safety Class Label
Deliverable Data
The following data shall be supplied with each device:
1. L(I)/V(I) curves @ Tc/ Tsubmount = 25°C/25°C
2. I
t
, V
t
@ Tc/Tsubmount = 25°C/70°C, P
f
3. Values of Twave and R
TH
@ Tsubmount = Twave
4. Values of I
f
, I
m
, I
th
and external differential efficiency @ Tsubmount = Twave and P
f
5.
λ
and SMSR at Tc = Tsubmount = 25°C
Product testing shall be carried out at a level that ensures conformity to the customer specification.
SAFETY AND HANDLING
Safety and IEC.825 Classification
Take appropriate precautions to prevent undue exposure to naked eye. This product is classified Class 3B Laser Product according to
IEC.825.
Handling
This product, in line with all similar devices, is sensitive to electrostatic discharge. Take precautions to prevent ESD; use wrist straps,
grounded work surfaces and recognized anti-static techniques when handling the laser. Handle the laser module by its package only, never
hold it by leads or pigtail.
For package mounting the following procedure should be carefully followed:
1. In order to achieve the ultimate thermal performance of the device, thermal paste can be usefully added on the support
2. Tighten screws up to 200 mN/m - Do not exceed this mounting torque.
3. Assure that the leads are aligned and in contact with appropriate contact pads.
Care should be taken to avoid supply transient and over voltage. Over voltage above the maximum specified in absolute maximum rating
section (table 2) may cause permanent damage to the device.
D2306
4
PowerSource 1905 LMI
TM
CW Laser Module with Optical Isolator, Up to 20 mW, L-Band
ORDERING INFORMATION
Nominal Power
10 mW
10 mW
20 mW
20 mW
Connector Type
FC/PC or FC/APC
SC/PC
FC/PC or FC/APC
SC/PC
Part Number [1]
3CN 00386 ##
3CN 00461 ##
3CN 00410 ##
3CN 00462 ##
## Defines the wavelength and the connector according to the following table. Table 3
λ(nm)
1570.00
1570.41
1570.82
1571.24
1571.65
1572.06
1572.47
1572.88
1573.30
1573.71
1574.12
1574.54
1574.95
1575.36
1575.78
1576.19
1576.61
1577.02
1577.44
1577.85
1578.27
1578.68
1579.10
1579.51
1579.93
1580.35
1580.76
1581.18
1581.60
1582.01
1582.43
1582.85
THz
190.95
190.90
190.85
190.80
190.75
190.70
190.65
190.60
190.55
190.50
190.45
190.40
190.35
190.30
190.25
190.20
190.15
190.10
190.05
190.00
189.95
189.90
189.85
189.80
189.75
189.70
189.65
189.60
189.55
189.50
189.45
189.40
Connector
FC/PC
FC/APC
SC/PC
FV
FW
FX
FY
FZ
GA
GB
GC
GD
GE
GF
GG
GH
GJ
GK
GL
GM
GN
GP
GR
GS
GT
GU
GV
GW
GX
GY
GZ
HA
HB
HC
HD
RV
RW
RX
RY
RZ
SA
SB
SC
SD
SE
SF
SG
SH
SJ
SK
SL
SM
SN
SP
SR
SS
ST
SU
SV
SW
SX
SY
SZ
TA
TB
TC
TD
λ(nm)
1583.27
1583.69
1584.10
1584.52
1584.94
1585.36
1585.78
1586.20
1586.62
1587.04
1587.46
1587.88
1588.30
1588.72
1589.14
1589.56
1589.98
1590.41
1590.83
1591.25
1591.67
1592.10
1592.52
1592.94
1593.37
1593.79
1594.21
1594.64
1595.06
1595.49
1595.91
1596.33
THz
189.35
189.30
189.25
189.20
189.15
189.10
189.05
189.00
188.95
188.90
188.85
188.80
188.75
188.70
188.65
188.60
188.55
188.50
188.45
188.40
188.35
188.30
188.25
188.20
188.15
188.10
188.05
188.00
187.95
187.90
187.85
187.80
Connector
FC/PC
FC/APC
SC/PC
HE
HF
HG
HH
HJ
HK
HL
HM
HN
HP
HR
HS
HT
HU
HV
HW
HX
HY
HZ
JA
JB
JC
JD
JE
JF
JG
JH
JJ
JK
JL
JM
JN
TE
TF
TG
TH
TJ
TK
TL
TM
TN
TP
TR
TS
TT
TU
TV
TW
TX
TY
TZ
UA
UB
UC
UD
UE
UF
UG
UH
UJ
UK
UL
UM
UN
λ(nm)
1596.76
1597.19
1597.61
1598.04
1598.46
1598.89
1599.32
1599.74
1600.17
1600.60
1601.02
1601.45
1601.88
1602.31
1602.74
1603.16
1603.59
1604.02
1604.45
1604.88
1605.31
1605.74
1606.17
1606.60
1607.03
1607.46
1607.89
1608.32
1608.76
1609.19
1609.62
1610.05
THz
187.75
187.70
187.65
187.60
187.55
187.50
187.45
187.40
187.35
187.30
187.25
187.20
187.15
187.10
187.05
187.00
186.95
186.90
186.85
186.80
186.75
186.70
186.65
186.60
186.55
186.50
186.45
186.40
186.35
186.30
186.25
186.20
Connector
FC/PC
FC/APC
SC/PC
JP
JR
JS
JT
JU
JV
JW
JX
JY
JZ
KA
KB
KC
KD
KE
KF
KG
KH
KJ
KK
KL
KM
KN
KP
KR
KS
KT
KU
KV
KW
KX
KY
UP
UR
US
UT
UU
UV
UW
UX
UY
UZ
VA
VB
VC
VD
VE
VF
VG
VH
VJ
VK
VL
VM
VN
VP
VR
VS
VT
VU
VV
VW
VX
VY
All wavelengths referenced to vacuum @ Tsubmoun
t.
www.avanex.com
Nasdaq: AVNX
40919 Encyclopedia Circle, Fremont, CA 94538 USA • Telephone 510-897-4188 • Fax 510-897-4189
D2306
©2005 Avanex Corporation. Actual data will vary according to the specific product and the specific application.
5
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