Product Bulletin OPF1412/1414
December 1997
High Speed Fiber Optic Transmitter
Types OPF1412/1414 Series
Features
•
Low Cost
•
High Speed
•
No Mounting Hardware Required
•
Wide Temperature Range
•
100% LED Burn-In (96 hours)
•
ST* Style Port
•
Wave Solderable
Description
The OPF14XX series fiber optic
transmitters contain a high speed 840
nm GaAlAs LED. This LED in
conjunction with the package lensing is
designed to efficiently couple light into
optical fibers ranging in size from
50/125
µm
up to 200
µm
PCS. These
devices were designed to work
together with the Optek OPF24XX
series receivers to make-up a complete
high speed fiber optic link.
Absolute Maximum Ratings
(T
A
= 25
o
C unless otherwise noted)
Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -55
o
C to +85
o
C
Operating Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -40
o
C to +85
o
C
Lead Soldering Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 260
o
C(10 sec)
Forward Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Peak 200 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC 100 mA
Reverse Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.8 V
PIN
1
2
3
4
5
6
7
8
FUNCTION
N.C.
Anode
Cathode
N.C.
N.C.
Anode
Anode
N.C.
The high coupling efficiency of the LED
and lensing allows the devices to be
used at low current drive levels thus
decreasing the power consumption and
Bottom View
increasing system reliability. The
consistency of coupling varies by less
than 5 dB from part to part which
See Mechanical Dimensions page 8-19 for Mechanical Drawings.
reduces the dynamic range
Available in Panel Mount ST* package; add “T” suffix to part number.
requirements of the receiver.
The high power (-16.5 dBm into 50/125
µm)
OPF1414 was designed for small
fiber applications or where there are
large fixed losses such as in systems
that contain star couplers or in line
connectors. The OPF1412 (-11.5 dBm
optical power) is ideal for 100/140
µm
fiber applications.
Optek Technology, Inc.
This component is susceptible to damage from electrostatic discharge (ESD). Normal
static precautions should be taken in handling and assembly of this component to
prevent ESD damage or degradation.
1215 W. Crosby Road
Carrollton, Texas 75006
8-4
(972) 323-2200
Fax (972)323-2396
Types OPF1412/1414 Series
Electrical Characteristics
(T
A
= -40
o
C to +85
o
C unless otherwise noted) Typ. values are at 25
o
C.
SYMBOL
V
F
V
F
/T
V
BR
λ
P
C
T
P
T/
T
PARAMETER
Forward Voltage
Forward Voltage Temperature Coefficient
Reverse Input Voltage
Peak Emission Wavelength
Diode Capacitance
Optical Power Temperature Coeffiecient
MIN TYP MAX UNIT
1.48
1.70
1.84
-0.20
1.8
820
3.8
840
55
-.008
-.020
865
2.09
V
TEST CONDITION
I
F
= 60 mA
I
F
= 100 mA
mV/
o
C I
F
= 60 mA
V
nm
pF
I
R
= 100
µA
I
F
= 60 mA
V=0
f = 1 MHz
dB/
o
C I = 60 mA
I = 100 mA
Peak Output Optical Power
SYMBOL
PARAMETER
1412/1402
1414/1404
UNIT
MIN TYP MAX MIN TYP MAX
-15.0 -12.0 -10.0
P
T100
100/140
µm
Fiber Cable
N.A. = 0.30
-16.0
-13.5 -10.0
-15.1
-9.0
-7.6
-7.0
-9.5
-10.5
-8.0
-9.6
-4.5
-6.5
-4.5
-3.5
-2.1
-1.5
I
F
= 60 mA, T
A
= 25
o
C
dBm
I
F
= 100 mA, T
A
= 25
o
C
I
F
= 60 mA, T
A
= 25
o
C
dBm
I
F
= 100 mA, I
F
= 25
o
C
dBm
TEST CONDITION
I
F
= 60 mA, T
A
= 25
o
C
I
F
= 100 mA, T
A
= 25
o
C
-19.0 -16.0 -14.0 -15.0 -12.0 -10.0
P
T62
62.5/125
µm
Fiber Cable
N.A. = 0.275
-20.0
-13.0 -16.0
-9.0
-7.6
-7.0
-17.5 -14.0 -11.6 -13.5 -10.0
-19.1
-11.0 -15.1
-21.8 -18.8 -16.8 -18.8 -15.8 -13.8
P
T50
50/125
µm
Fiber Cable
N.A. = 0.20
-22.8
-15.8 -19.8
-12.8
-20.3 -16.8 -14.4 -17.3 -13.8 -11.4
-21.9
-13.8 -18.9
-10.8
Dynamic Characteristics
SYMBOL
t
r
, t
f
PARAMETER
Rise Time, Fall Time
(10% to 90%)
1412/1402
1414/1404
UNIT
MIN TYP MAX MIN TYP MAX
4.0
6.5
4.0
6.5
ns
TEST CONDITION
I
F
= 60 mA, No pre-bias
Optek reserves the right to make changes at any time in order to improve design and to supply the best product possible
Optek Technology, Inc.
1215 W. Crosby Road
Carrollton, Texas 75006
(972)323-2200
Fax (972)323-2396
8-5
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