NEC's 1310 nm
InGaAsP MQW FP LASER DIODE
IN COAXIAL PACKAGE
FOR 622 Mb/s APPLICATIONS
NX7302BA-CC
NX7302CA-CC
FEATURES
CENTER WAVELENGTH:
C
= 1310 nm
OPTICAL OUTPUT POWER:
P
f
= 0.2 mW
LOW THRESHOLD CURRENT:
I
TH
= 9 mA
HIGH CUTOFF FREQUENCY:
f
C
= 2.0 GHz
InGaAs MONITOR PIN-PD
WITH SC-UPC CONNECTOR
WIDE OPERATING TEMPERATURE RANGE:
-40 to +85
C
BASED ON TELCORDIA RELIABILITY
NEC's NX7302BA-CC and NX7302CA-CC are 1310 nm Fabry-
Perot (FP) laser diode coaxial modules with single mode fiber.
They have a Multiple Quantum Well (MQW) structure and a
built-in InGaAs monitor photo diode. These modules are ideal
as light sources for Synchronous Digital Hierarchy (SDH)
systems, STM-4 and short-haul S-4.1 ITU-T recommenda-
tions.
DESCRIPTION
California Eastern Laboratories
PART NUMBER
NX7302BA-CC, NX7302CA-CC
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
P
f
Optical Output Power from Fiber
mW
0.2
V
OP
Operating Voltage,
P
f
= 0.2 mW
V
1.2
1.5
I
TH
Threshold Current
T
C
= +25
C
mA
4
9
20
mA
2
50
P
TH
Threshold Output Power, I
F
= I
TH
W
15
I
MOD
Modulation Current
P
f
= 0.2 mW, T
C
= 25
C
mA
7
15
20
P
f
= 0.2 mW
mA
5
40
d
Differential Efficiency
P
f
= 0.2 mW, T
C
= 25
C
W/A
0.010
0.015
0.025
P
f
= 0.2 mW
W/A
0.005
0.040
d
Temperature Dependence of Differential Efficiency,
dB
-3
-2
Kink
Kink, P
f
= Up to 0.24 mW (Refer to Definitions)
%
20
c
Center Wavelength, P
f
= 0.2 mW, RMS (-20 dB)
nm
1274
1310
1356
/
T
Temperature Dependence of Center Wavelength
nm/
C
0.4
0.5
Spectral Width, P
f
= 0.2 mW, RMS (-20 dB)
nm
1.3
2.5
f
C
Cut-off Frequency, -3 dB
GHz
2.0
t
r
Rise Time, 10 to 90%, P
pk
= 0.2 mW, I
F
= I
TH
ns
0.2
0.5
t
f
Fall Time, 90 to 10%, P
pk
= 0.2 mW, I
F
= I
TH
ns
0.3
0.5
Applicable to Monitor PD: T
C
= -40 to +85
C unless otherwise specified
I
m
Monitor Current, V
R
= 5 V, P
f
= 0.2 mW
A
100
700
1200
I
D
Dark Current
V
R
= 5 V, T
C
= 25
C
nA
0.1
50
V
R
= 5 V
nA
10
500
C
t
Terminal Capacitance, V
R
= 5 V, f = 1 MHz
pF
20
LIN
m
Linearity, V
R
= 5 V, P
f
= 0.02 to 0.2 mW
%
10
(Refer to Definitions)
Tracking Error, Im = const. (Refer to Definitions)
dB
0.5
1.0
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= -40 to +85
C, unless otherwise specified)
d
= 10 log
d
(@ T
C
C)
d
(@ 25 C)
ABSOLUTE MAXIMUM RATINGS
1
(T
C
= 25
C, unless otherwise specified)
SYMBOLS
PARAMETERS
UNITS RATINGS
P
f
Optical Output Power from Fiber
mW
0.5
I
F
Forward Current of LD
mA
150
V
R
Reverse Voltage of LD
V
2.0
I
F
Forward Current of PD
mA
10
V
R
Reverse Voltage of PD
V
20
T
C
Operating Case Temperature
C
-40 to +85
T
STG
Storage Temperature
C
-40 to +85
T
SLD
Lead Soldering
Temperature (10 s)
C
260
RH
Relative Humidity
(noncondensing)
%
85
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
NX7302BA-CC, NX7302CA-CC
PARAMETER DEFINITIONS
0.24
P
K
0
I
F
- P
f
dP
o
dP
K
I
F -
d
I
F
(mA)
(mW)
P
f
P
K
0
dP
o
dP
L
P
f
I
m
(mA)
(mW)
0.02
P
L
0.2
0
P
f
I
m
I
m
(mA)
(mW)
P
f
0.2
T
C =
25C
T
C
= -40 to +85C
Kink : kink
Linearity : LIN
m
Tracking Error :
=
|
10 log
|
[dB]
P
f
0.2
LINm =
x 100 [%]
|dP
L
|
P
L
dP
L
= dPo MAX
0.02 < P
K
< 0.2 (mW)
kink =
x 100 [%]
|
dP
K
|
P
K
dP
K
= dPo MAX
P
K
0.24 (mW)
NX7302BA-CC, NX7302CA-CC
TYPICAL PERFORMANCE CURVES
(T
C
= -40 to +85
C)
FORWARD CURRENT vs.
FORWARD VOLTAGE
Forward Current, I
F
(mA)
Forward Voltage, V
F
(V)
50
40
30
20
10
0
0
1
2
Relative Intensity
Wavelength,
(nm)
LONGITUDINAL MODE
1300
1310
1320
Case Temperature, T
C
(
C)
Differential Efficiency,
d
(W/A)
TEMPERATURE DEPENDENCE OF
DIFFERENTIAL EFFICIENCY
-60
-40
-20
0
20
40
60
80
100
0.03
0.02
0.01
0
Case Temperature, T
C
(
C)
Threshold Current, I
TH
(mA)
Operating Current, I
OP
(mA)
OPERATING CURRENT AND
THRESHOLD CURRENT
vs. CASE TEMPERATURE
100
50
30
20
10
5
3
2
1
-60
-40
-20
0
20
40
60
80
100
I
th
I
OP
(@P
f
= 0.2 mW)
OPTICAL OUTPUT POWER FROM FIBER
vs. FORWARD CURRENT
Optical Output Power from Fiber, P
f
(mW)
Forward Current, I
F
(mA)
+25C
+70C
+85C
T
C
= -40C
0
0
50
100
150
0.5
0.4
0.2
0.1
0.3
Case Temperature, T
C
(
C)
TEMPERATURE DEPENDENCE OF
CENTER WAVELENGTH
Center Wavelength,
c
(nm)
1360
1340
1320
1300
1280
1260
-60
-40
-20
0
20
40
60
80
100
NX7302BA-CC, NX7302CA-CC
OUTLINE DIMENSIONS
(Units in mm)
8.99
0.5 mm
35
2 mm
Fiber Length: 500
50 mm
OPTICAL FIBER CHARACTERISTICS
PARAMETER
UNITS SPECIFICATION
Mode Field Diameter
m
9.5
1
Cladding Diameter
m
125
2
Maximum Cladding Noncircularity
%
2
Maximum Core/Cladding Concentricity
%
1.6
Outer Diameter
mm
0.9
0.1
Cut-off Wavelength
nm
1100 to 1270
Minimum Fiber Bending Radius
mm
30
Fiber Length
mm
500
50
Flammability
UL 1581 VW-1
PART NUMBER AVAILABLE CONNECTOR
FLANGE TYPE
NX7302BA-CC
With SC-UPC Connector
Flat Mount Flange
NX7302CA-CC
With SC-UPC Connector
Vertical Mount
Flange
ORDERING INFORMATION
PIN CONNECTIONS
1
2
3
4
0.9
Optical Fiber (SMF)
Length: 0.5 m
With SC Connector
8.00.3
7.00.2
4.00.2
2.2
3.2
2.2
0.450.05
18.31.0
25.51.0
1.20.2
20.01.0
12.70.2
17.00.2
P.C.D. = 2.0
7.20.3
3.70.3
1.00.1
PD
LD
4
1
3
2
CASE
6.0
PIN CONNECTIONS
NX7302BA-CC
NX7302CA-CC
Optical Output Power From Fiber, P
f
(mW)
Monitor Current, I
m
(mA)
OPTICAL OUTPUT POWER FROM FIBER
vs. MONITOR CURRENT
1
0.5
0
0.5
1.0
1.5
0
TYPICAL PERFORMANCE CURVES
(T
C
= -40 to +85
C)
16.0
0.5
0.450.05
0.9
Optical Fiber (SMF)
Length: 0.5 m
With SC Connector
7.00.2
8.00.3
0.50.2
6.0
15.0
26.11.0
5.1
20.0
1.0
2
1
3
4
LD
PD
CASE
P.C.D. = 2.0
4R1.250.2
22.5
8.50.2
1
2
3
4
12.00.15
7.00.2
A Business Partner of NEC Compound Semiconductor Devices, Ltd.
02/27/2003
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