The 1612A/B 1310 nm forward path DFB laser modules are designed for both
broadcast and narrowcast analog applications. The highly linear OC-48 pinout
compatible devices feature options up to 31mW of minimum optical output power
with superior distortion performance over an enhanced temperature range of
-40C to +85C.
Applications
1310 nm Forward Path/Return Path
Broadcast and Narrowcast Networks
Long Distances
High Optical Splits
Performance Highlights
Min
Wavelength
Optical Output Power (multiple versions)
Temperature Range
Frequency Range
1300
4-31
-40
5
51
55-60
65
Typical
-
-
-
-
-
-
-
Max
1320
-
+85
1002
-
-
-
Units
nm
mW
C
MHz
dB
dB
dB
Features
OC-48 Pinout Compatible
Telcordia
®
Technologies 468 Compliant
79 Channel Count
Up to 31 mW
Wide Temperature Range – Stable even
in Harsh Environments
Carrier to Noise Ratio
Composite Second Order (multiple versions)
Composite Triple Beat
| REV 2013.03
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.
1612A/B 1310 nm DFB Laser Module
DATASHEET | MARCH 2013
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
Wavelength
Optical Output Power
Optical Isolation
Optical Return Loss
Sidemode Suppression Ratio
Threshold Current
Operating Current
Monitor PD Responsivity
Thermistor Resistance
Thermistor Temp. Coefficient
TEC Current
Fiber Length
Fiber Buffer
Fiber Core / Cladding
Symbol
-
-
ISO
ORL
SMSR
I
TH
I
OP
r
PD
R
TH
TC
TH
I
TEC
-
-
-
Condition
-
1612-xxxx-04 version
See ordering page for options
1612-xxxx-31 version
-
Tc
-
-
varies with power option
V
RM
=5V
T
OP
=25
C
T
OP
=25
C
-40<T
C
<+85C, I
F
= 100 mA
May include splice
-
-
Min
1300
4
.
31
30
40
35
-
-
10
9.5
-
-1.5
1.0
-
-
Typ
-
-
-
-
-
-
-
-
-
10
-4.4
-
1.5
900
9/125
Max
1320
-
-
-
-
-
20
120
200
10.5
-
1.6
-
-
-
Unit
nm
mW
mW
dB
dB
dB
mA
mA
μA/mW
KOhm
%/C
A
m
m
m
| REV 2013.03
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.
1612A/B 1310 nm DFB Laser Module
DATASHEET | MARCH 2013
FIBER OPTICS
RF Characteristic
Parameter
Frequency Range
Frequency Response
Carrier-to-Noise Ratio
Comp. Second Order, 1612A
Comp. Second Order, 1612B
Composite Triple Beat, 1612A/B
Relative Intensity Noise
Symbol
F
S21
CNR
CSO
CSO
CTB
RIN
Condition
-
I
F
= 60 mA, 5 MHz-1002 MHz
-
4, 6, 8 mW options
10 mW options
-
-
-
Min
5
-
51
55
57
60
65
-
Typ
-
-
-
-
-
-
-
<-155
Max
1002
±0.75
-
-
-
-
-
-
Unit
MHz
dB
dB
dB
dB
dB
dB
dB/Hz
OMI = 3.7% for 79ch 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.
Outline Drawing (dimensions are in inches & mm)
| REV 2013.03
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.
1612A/B 1310 nm DFB Laser Module
DATASHEET | MARCH 2013
FIBER OPTICS
Electrical Schematics
1
ISOLATOR
10K
ESD
12nH
NC
14
2
(+)
13
3
3.3V
RF CHOKE
22
12
0.01uF
100
LD
(-)
(+)
4
(-)
11
5
(+)
MPD
10
6
(+)
9
CASE
GND
7
(-)
TEC
8
Figure 1. 1612A/B Laser Schematic
Figure 2. 1612A/B Circuit Schematic
Pin Definitions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
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 (+)
| REV 2013.03
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.
1612A/B 1310 nm DFB Laser Module
DATASHEET | MARCH 2013
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 2013.03
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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