DATASHEET| FEBRUARY 05, 2010
1622 CWDM DFB Laser Module
The 1622 ITU G.695 compliant CWDM forward path DFB laser
components are designed for both broadcast and narrowcast analog
applications. The highly linear, OC-48 pinout compatible components
feature options for up to 20 mW of minimum optical output power with
superior distortion performance over an enhanced temperature range of
-40°C to +85°C.
Applications
CWDM forward path
Broadcast and narrowcast
networks
CWDM cuts new fiber costs
High optical splits
Performance Highlights
Min
1287
1307
Wavelength
1327
1347
1367
4
Typical
1291
1311
1331
1351
1371
Max
1295
1315
1335
1355
1375
nm
Units
Features
OC-48 pinout compatible
Telcordia Technologies
compliant
Up to 20 mW
Wide temperature range—
stable even in harsh
environments
TM
468
Optical Output Power
6
8
10
13
16
20
Temperature Range
Frequency Range
Carrier to Noise Ratio
Composite Second Order (multiple versions)
Composite Triple Beat (multiple versions)
-40
5
51
-
-
-
-
-
-
-
+85
1002
-
-57
-66
°C
MHz
dB
dBc
dBc
-
-
mW
Up to 110 channel count
See following pages for complete specifications and conditions.
For more information on this and other products:
Contact Sales at Emcore 626-293-3400, or visit www.emcore.com.
1622 CWDM DFB Laser Component
DATASHEET| FEBRUARY 05, 2010
Absolute Maximum Ratings
Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute
stress ratings only. Functional operation of the device is not implied at these or any other conditions in excess of those
given in the operational sections of the data sheet. Exposure to absolute maximum ratings for extended periods can
adversely affect device reliability.
Parameter
Symbol
Condition
Min
Max
Units
Operating Case Temperature
T
C
continuous
-40
+85
°C
Storage Temperature
T
STG
-
-40
+85
°C
Laser Forward dc Current
-
-
-
150
mA
Photodiode Reverse Voltage
V
RPD
-
-
10
V
Laser Reverse Voltage, dc
-
-
-
1
V
ESD
-
HBM: R = 1500 Ohm, C = 100 pF
-500
500
V
TEC Current
I
TEC
continuous
-1.9
1.9
A
Electrical/Optical Characteristics
Laser Temperature (T
L
) = 25°C, I
F
=I
OP
, Beginning of Life (BOL)
Parameter
Symbol
Condition
1290 nm option
1310 nm option
Wavelength
1330 nm option
1351 nm option
1371 nm option
-04 version
-06 version
-08 version
Optical Output Power
-
-10 version
-13 version
-16 version
-20 version
Optical Isolation
ISO
-
Sidemode Suppression Ratio
SMSR
-
Threshold Current
I
TH
-
Operating Current
I
OP
varies with power option
Monitor PD Responsivity
r
PD
V
RM
=5V
Thermistor Resistance
R
TH
T
OP
=25
°C
Thermistor Temp. Coefficient
TC
TH
T
OP
=25
°C
TEC Current
I
TEC
-40<T
C
<+85°C, I
F
= 100 mA
Fiber Length
-
May include splice
Fiber Buffer
-
-
Fiber Core / Cladding
-
-
Min
1287
1307
1327
1347
1367
4
6
8
10
13
16
20
30
35
-
-
10
9.5
-
-1.5
1.0
-
-
Typ
1291
1311
1331
1351
1371
-
-
-
-
-
-
-
-
-
10
-4.4
-
1.5
900
9/125
Max
1295
1315
1335
1355
1375
--
-
-
Unit
nm
mW
-
-
20
120
200
10.5
-
1.6
-
-
-
dB
dB
mA
mA
A/mW
KOhm
%/°C
A
m
µm
µm
EMCORE CORPORATION
1622 CWDM DFB Laser Component
DATASHEET| FEBRUARY 05, 2010
RF Characteristics
Laser Temperature (T
L
) = 25°C, I
F
= I
OP
, Beginning of Life (BOL)
Parameter
Symbol
Condition
Frequency Range
F
-
Frequency Response
S21
I
F
= 60 mA, 5 - 1002 MHz
Carrier-to-Noise Ratio
CNR
-
(1)
Comp. Second Order
CSO
Standard options (1622A)
Enhanced options (1622B)
(1)
Composite Triple Beat
CTB
4mW to 8mW options
10mW & 13mW options
16mW & 20mW options
Relative Intensity Noise
RIN
-
Min
5
-
52
-
-
-
-
-
-
Typ
-
-
-
-
-
-
-
-
<-155
Max
1002
±0.75
-
-57
-60
-65
-66
-67
-
Unit
MHz
dB
dB
dBc
dBc
dBc
dBc
dBc
dB/Hz
3.2% OMI, 110 ch. NTSC
In order to prevent reflection-induced distortion, the laser must be connected to an optical cable having a return loss of at least 55 dB for discrete
reflections and 30 dB for distributed reflections.
(1)
Distortion performance assumes 0km dispersion.
Outline Diagram
Dimensions are in inches and (millimeters)
EMCORE CORPORATION
3
1622 CWDM DFB Laser Component
DATASHEET| FEBRUARY 05, 2010
Electrical Schematics
Figure 1. 1622 CWDM Laser Schematic
Figure 2. 1622 CWDM Circuit Schematic
EMCORE CORPORATION
4
1622 CWDM DFB Laser Component
DATASHEET| FEBRUARY 05, 2010
Pin Definitions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
Thermistor
Thermistor
Dc Laser Bias (-)
MPD Anode (-)
MPD Cathode (+)
Thermal Electric Cooler (+)
Thermal Electric Cooler (-)
Case Ground
Case Ground
NC
Laser Common (+)
Laser Modulation (-)
Laser Common (+)
NC
Laser Safety
This product meets the appropriate standard in Title 21 of the Code of Federal Regulations (CFR). FDA/CDRH
Class 1 laser product. This device has been classified with the FDA/CDRH under accession number 0220191.
All Versions of this laser are Class 1 laser product, tested according to IEC 60825-1:2007/EN 60825-1:2007
Single-mode fiber pigtail with SC/APC connectors (standard).
Wavelength = 1.3
µm.
Maximum power = 50 mW.
Because of size constraints, laser safety labeling (including an FDA class 1 label) is not affixed to the module,
but attached to the outside of the shipping carton.
Product is not shipped with power supply.
Caution: Use of controls, adjustments and procedures other than those specified herein may result in
hazardous laser radiation exposure.
DANGER
INVISIBLE LASER RADIATION
AVOID DIRECT EXPOSURE TO BEAM
Wavelength: 1.3
µ
m
Max. Output: 50 mW,
Class 1 Laser Product
DANGER
INVISIBLE LASER RADIATION
IS EMITTED FROM THE END
OF FIBER OR CONNECTOR
Avoid direct exposure to beam
Do not view beam directly with
optical instruments
INVISIBLE LASER RADIATION EMITTED FROM END OF FIBER OR CONNECTOR
Avoid exposure to beam
Class 1 Laser Product IEC-60825-1:20007 Max. Output:50 mw
Wavelength: 1.3
µ
m
EMCORE CORPORATION
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