1955 F/R/W Coaxial DFB Laser Diode
1550 nm CWDM 5 MHz – 4000 MHz
DATASHEET | SEPTEMBER 2013
FIBER OPTICS
Absolute Maximum Ratings1
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
Symbol
TSTG
TOP
IOP
Condition/Notes
Non-Operating
Continuous
CW
Min
Max
85
Unit
oC
Storage Temperature
-40
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
-40
85
oC
-
150
1.0
mA
V
VR
Continuous
Continuous
Continuous
60 Seconds
-
-
IMPD
VMPD,R
PIN
-
-
2
mA
V
-
10
-
62
dBmV
oC/sec
%
-
-
260/10
85
RH
Continuous
Human Body Model
ESD
-
-500
+500
V
1. 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.
Electrical/Optical Characteristics
Parameters
Symbol
Conditions/Notes
Min
Typ
Max
Unit
1955R opt model: 3-6 dBm
3
5
6
9
-
-
-
-
4.9
5.9
8.9
9.9
Optical Output Power
1955W opt model: 3-9 dBm
1955F opt model: 3-9 dBm
PO
dBm
Threshold Current
ITH
Tcase = 25ºC
-
8
15
mA
Laser Bias Current
Forward Voltage
Slope Efficiency
IOP
VF
-
-
-
1.2
-
80
1.8
0.3
mA
V
Iop
SE
Tcase = 25ºC, Iop
0.07
mW/mA
SE(Tc)/SE(25ºC)
Tcase = -20ºC to 85ºC
Thermal Slope Efficiency
TSE
0.4
-
1.2
-
Laser Input Impedance
MPD Current
Z
-
2
4
-
8
IMPD
VMPD = 5V, Iop
50
2000
A
VMPD = 5V, Iop = 0
Tcase = 25ºC
MPD Dark Current
ID
-
-
-
-
50
nA
CW, Iop, Tcase = 25ºC
5 MHz - 1002 MHz
Relative Intensity Noise
RIN
-150
dB/Hz
|
REV 2013.09
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.