PRELIMINARY DATA SHEET
NEC's 1310 nm InGaAsP MQW FP
LASER DIODE IN COAXIAL PACKAGE
FOR FIBER OPTIC COMMUNICATIONS
NX7304BG-CC
NX7304CG-CC
FEATURES
DESCRIPTION
NEC's NX7304BG-CC and NX7304CG-CC are 1310 nm Mul-
tiple Quantum Well (MQW) structured Fabry-Perot (FP) laser
diode coaxial modules with single mode fiber. These modules
are ideal as a light source for ITU-T recommended Synchro-
nous Digital Hierarchy (SDH) systems, for fiberoptic commu-
nications such as SONET and for digital transmission.
• CENTER WAVELENGTH:
λC = 1310 nm
• HIGH OUTPUT POWER FROM FIBER:
PF = 2.0 mW MIN
• LOW THRESHOLD CURRENT:
ITH = 10 mA
• HIGH CUT-OFF FREQUENCY:
fC = 2.0 GHz
• InGaAs MONITOR PIN-PD
• WIDE OPERATING TEMPERATURE RANGE:
TC =-40 to +85°C
• WITH SC-UPC CONNECTOR
• BASED ON TELCORDIA RELIABILITY
ELECTRO-OPTICAL CHARACTERISTICS (TC = 25°C, unless otherwise specified)
PART NUMBER
NX7304BG-CC
NX7304CG-CC
SYMBOLS
VOP
PARAMETERS AND CONDITIONS
Operating Voltage, Pf = 2.0 mW
Threshold Current,
UNITS
V
MIN
TYP
MAX
1.1
1.3
ITH
mA
10
25
25
50
TC = 85°C
IMOD
Modulation Current, Pf = 2.0 mW
mA
15
20
ηD
Differential Efficiency,
W/A
0.100
0.075
0.150
0.100
TC = 85°C
λC
∆λ/∆T
σ
Center Wavelength, Pf = 2.0 mW, RMS (-20 dB)
nm
1290
1260
1310
1330
1360
TC = -40 to +85°C
Temperature Dependence of Center Emission
Wavelength,
TC = -40 to +85°C
nm/°C
0.4
0.5
Spectral Width,
Pf = 2.0 mW, RMS (-20 dB)
nm
1.3
1.5
2.5
4.0
TC = 85°C
tr
tf
Rise Time, 10 to 90%
Fall Time, 90 to 10%
ns
ns
0.2
0.3
700
0.1
0.5
0.5
Im
ID
γ1
Monitor Current, VR = 5 V, Pf = 2.0 mW
Monitor Dark Current, VR = 5 V
µA
nA
dB
100
10
Tracking Error, Im = const., TC = -40 to +85°C
1.0
Note:
1.
Pf
P
f
γ = 10 log
2.0 mW
(mW)
TC = 25°C
TC = -40 to +85°C
2.0
P
f
I
m
0
Im
California Eastern Laboratories
