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 -40C to +85C.
Performance Highlights
Applications
CWDM Forward Path
Broadcast and Narrowcast Networks
CWDM Cuts New Fiber Costs
High Optical Splits
Wavelength
Min
1287
1307
1327
1347
1367
Typical
1291
1311
1331
1351
1371
Max
1295
1315
1335
1355
1375
Units
nm
Features
OC-48 Pinout Compatible
Telcordia
Compliant
Technologies
TM
468
Optical Output Power
4
6
8
10
13
16
20
Temperature Range
Frequency Range
Carrier to Noise Ratio
Composite Second Order (1622B versions)
Composite Triple Beat
-40
5
51
-
-
-
-
-
-
-
+85
1002
-
-59
-65
C
MHz
dB
dBc
dBc
-
-
mW
Up to 110 Channel Count
Up to 20 mW
Wide Temperature Range – Stable even
in Harsh Environments
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
1622 CWDM DFB Laser Module
DATASHEET | FEBRUARY 2012
FIBER OPTICS
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
Operating Temperature Range
Storage Temperature Range
Laser Forward dc Current
Photodiode Reverse Voltage
Laser Reverse Voltage, dc
ESD
TEC Current
Symbol
T
c
T
STG
-
V
RPD
-
-
I
TEC
Condition
Continuous
-
-
-
-
HBM: R = 1500 Ohm,
C = 100pF
Continuous
Min
-40
-40
-
-
-
-500
-1.9
Max
+85
+85
150
10
1
500
1.9
Unit
°C
°C
mA
V
V
V
A
Electrical/Optical Characteristics
Laser Temperature (TL) = 25
o
C, I
F
=I
OP
, Beginning of Life (BOL)
Parameter
Symbol
Condition
1290 nm option
1310 nm option
1330 nm option
1351 nm option
1371 nm option
-04 version
-06 version
-08 version
-10 version
-13 version
-16 version
-20 version
-
-
-
Varies with power option
V
RM
=5V
Points measured @
I
F
= I
TH
+ 20 and I
TH
+60
T
OP
=25°C
T
OP
=25
C
-40<T
C
<+85 C, I
F
= 100 mA
May include splice
-
-
o
Min
1287
1307
1327
1347
1367
4
6
8
10
13
16
20
30
35
-
-
10
0.084
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
-
-
-
-
-
-
-
-
-
20
120
200
-
10.5
-
16
-
-
-
Unit
Wavelength
nm
Optical Output Power
-
mW
Optical Isolation
Side-Mode Suppression Ration
Threshold Current
Operating Current
Monitor PD Responsivity
Slope Efficiency
Thermistor Resistance
Thermistor Temp. Coefficient
TEC Current
Fiber Length
Fiber Buffer
Fiber Core/Cladding
ISO
SMSR
I
TH
I
OP
r
PD
n
R
TH
TC
TH
I
TEC
-
-
-
dB
dB
mA
mA
μA/mW
mW/mA
KOhm
%/C
A
M
m
m
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
1622 CWDM DFB Laser Module
DATASHEET | FEBRUARY 2012
FIBER OPTICS
RF Characteristic
Laser Temperature (TL) = 25
o
C, I
F
=I
OP
, Beginning of Life (BOL)
Parameter
Frequency Range
Frequency Response
Carrier-to-Noise Ratio
Comp. Second Order
Composite Triple Beat
Relative Intensity Noise
Symbol
F
S21
CNR
CSO
CTB
RIN
(1)
Condition
-
Iop = 60 mA, 5 - 1002 MHz
-
Standard Options (1622A)
Enhanced Options (1622B)
1622A & 1622B
-
Min
5
-
51
-
-
-
-
Typ
-
-
-
-
-
-
<-155
Max
1002
+0.75
-
-56
-59
-65
-
Unit
MHz
dB
dB
dBc
dBc
dBc
dB/Hz
(1)
3.2% OMI, 79 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 Drawing (dimensions are in inches & mm)
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
1622 CWDM DFB Laser Module
DATASHEET | FEBRUARY 2012
FIBER OPTICS
Electrical Schematics
Figure 1. 1622 CWDM Laser Schematic
Figure 2. 1622 CWDM Circuit Schematic
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
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
1622 CWDM DFB Laser Module
DATASHEET | FEBRUARY 2012
FIBER OPTICS
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
m.
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
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
m
| REV 2012.02
Information contained herein is deemed reliable and accurate as of the issue date. EMCORE reserves the right to change the design or specification at any time without notice.
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