DATASHEET| FEBRUARY 20, 2008
Model 1933F CATV Coaxial DFB Laser Diode
1310nm, Wide Bandwidth 5MHz – 2700MHz
Emcore’s Model 1933F DFB lasers offer a low cost solution for linear
fiberoptic links. These components can be cooled with external thermo-
electric coolers for high stability, or run without TEC’s to reduce power
consumption. The DFB laser builds upon Ortel’s long history of high
performance, leading edge designs in CATV, wireless, and high speed
digital applications. The laser diode devices are packaged in a compact
hermetic assembly together with monitor photodiode and isolator, for
Applications
Video signal distribution in
HFC and FTTx nodes
High linearity, low power fiber
links
Operating Case Temperature Range
flexible integration into various transmitter configurations.
Performance Highlights
Min
-40
3
Optical Output Power
6
9
10
Frequency Range
Carrier-to-Noise Ratio (79 channels)
Composite Second Order (79 channels)
Standard Linearity
Enhanced Linearity
Composite Triple Beat (79 channels)
Standard Linearity
Enhanced Linearity
Center Wavelength
Optical Return Loss
Side Mode Suppression Ratio, CW
-
-
1300
35
30
-
-
-
-
-
-65
-68
1320
-
-
nm
dB
dB
dBc
-
-
-
-
-57
-60
dBc
5
51
Typical
-
-
-
-
-
-
-
Max
80
5.8
8.8
9.8
11.8
2700
-
MHz
dB
dBm
Units
°C
Features
Linear DFB laser design
Output power up to 10 dBm
available
Bandwidth > 2700 MHz
RoHS compliance
Optical Isolator
Low power consumption
Monitor photodiode
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.
Model 1933F 1310 nm CATV Coaxial DFB
Laser Diode
DATASHEET| FEBRUARY 20, 2008
Absolute Maximum Ratings
1
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.
Parameters
Storage Temperature
Operating Case Temperature
Laser Diode Forward Current
Laser Diode Reverse Voltage
Photodiode Forward Current
Photodiode Reverse Voltage
Average RF Input Power
Lead Soldering Temperature/Time
Relative Humidity
ESD
1.
Symbol
T
STG
T
OP
I
OP
V
R
I
MPD
V
MPD,R
PIN
-
RH
-
Condition/Notes
Non-Operating
Continuous
CW
Continuous
Continuous
Continuous
60 Seconds
-
Continuous
Human Body Model
MIN
-40
-40
-
-
-
-
-
-
-
-500
MAX
85
80
100
1.0
2
10
62
260/10
85
+500
Unit
o
C
o
C
mA
V
mA
V
dBmV
o
C/sec
%
V
Absolute maximum data are limited to system design only; proper device performance is not guaranteed over rating listed above. Operation
beyond these maximum conditions may degrade device performance, lead to device failure, shorter lifetime, and will invalidate the device
warranty.
EMCORE CORPORATION
Model 1933F 1310 nm CATV Coaxial DFB
Laser Diode
DATASHEET| FEBRUARY 20, 2008
Electrical/Optical Characteristics
Parameters
Optical Output Power
Symbol
P
O
Conditions/Notes
3 dBm version
6 dBm version
9 dBm version
10 dBm version
T
case
= 25ºC
T
case
= 45ºC
I
op
-
V
MPD
= 5V, I
op
= 40 mA
V
MPD
= 5V, I
op
= 0
T
case
= 25ºC
I
op
CW, I
op
,
5 MHz - 1002 MHz
T
case
= 25ºC
I
op
I
op
T
case
= 25ºC
Min
3
6
9
10
-
-
-
-
2
200
-
1300
-
30
-
30
35
Typ
-
-
-
-
8
13
-
1.17
4
-
-
-
-
-
0.1
45
-
Max
5.8
8.8
9.8
11.8
15
20
80
1.8
8
1800
50
1320
-145
-
1.0
-
-
Unit
dBm
Threshold Current
Laser Bias Current
Forward Voltage
Laser Input Impedance
MPD Current
MPD Dark Current
Center Wavelength
Relative Intensity Noise
Optical Isolation
Spectral Width (-20 dB)
Side Mode Suppression Ratio
Optical Return Loss
1.
Referenced to base of TO header.
I
TH
I
OP
V
F
Z
I
MPD
I
D
λ
c
RIN
ISO
∆λ
SMSR
ORL
mA
mA
V
Ω
µA
nA
nm
dB/Hz
dB
nm
dB
dB
RF Characteristics
Parameters
Bandwidth
3 dB
Frequency Response Flatness
1
1
Symbol
BW
|S
21
|
CNR
CSO
Response Up-tilt
2,3,4
Carrier-to-Noise Ratio
2,3,4
Composite Second Order
Standard Linearity
Enhanced Linearity
2,3,4
Composite Triple Beat
Standard Linearity
Enhanced Linearity
1.
2.
3.
4.
Conditions/Notes
I
op
, T
case
= 25ºC
5 MHz < f < 1002 MHz
950 MHz < f < 2700 MHz
5 MHz < f < 1002 MHz
I
op
I
op
T
case
= 25ºC
I
op
T
case
= 25ºC
Min
2700
-
-
-1
51
-
-
-
-
Typ
-
-
-
-
-
-
-
-
Max
-
1
3
3
-
-57
-60
-65
-68
Unit
MHz
dB
p-p
dB
dB
dBc
CTB
dBc
I
op
, T
case
= 25°C. Test with the laser Input pin matched to a 50Ω system.
3.7% OMI, 79 NTSC unmodulated carriers (50 MHz to 550 MHz). 10 km fiber.
Received power = 0 dBm.
I
op
, T
case
= 25°C. Test with the laser Input pin matched to a 75Ω system.
EMCORE CORPORATION
3
Model 1933F 1310 nm CATV Coaxial DFB
Laser Diode
Package Outline Drawing
DATASHEET| FEBRUARY 20, 2008
Mounting Bracket
EMCORE CORPORATION
4
Model 1933F 1310 nm CATV Coaxial DFB
Laser Diode
DATASHEET| FEBRUARY 20, 2008
Reliability/Quality
Designed to meet qualification requirements of Telcordia
TM
(Bellcore) GR-468-CORE.
Schematic and Pinout
3
PD
4
2
LD
1
Pinout A
Pin Definitions
Pin
1
2
3
4
Description
LD Anode, Case Ground
LD Cathode
PD Cathode
PD Anode
EMCORE CORPORATION
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