鈥?/div>
WIDE OPERATING TEMPERATURE RANGE:
T
C
= -10 to +85擄C
鈥?WITH SC-UPC CONNECTOR
鈥?BASED ON TELCORDIA RELIABILITY
The module is ideal as a light source for Synchronous Digital
Hierarchy (SDH) system, STM-1, log-haul L-1.2, L-1.3 and
STM-4, long-haul L-4.2, L-4.3 ITU-T recommendations.
DESCRIPTION
NEC's NX8503BG-CC and NX8503CG-CC are 1550 nm Co-
axial Module DFB (Distributed Feed-Back) laser diode with
single mode fiber. Multiple Quantum Well (MQW) structure is
adopted to achieve stable dynamic single longitudinal mode
operation over a wide temperature range of -10 to +85擄C.
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= -10 to +85擄C, unless otherwise specified)
PART NUMBER
SYMBOLS
P
f
V
OP
I
TH
P
TH
I
MOD
PARAMETERS AND CONDITIONS
Optical Output Power from Fiber, CW
Operating Voltage, P
f
= 2.0 mW
Threshold Current
Threshold Output Power, I
F
= I
TH
Modulation Current
Differential Efficiency
P
f
= 2.0 mW, T
C
= 25擄C
P
f
= 2.0 mW
T
C
= +25擄C
UNITS
mW
V
mA
mA
碌W
mA
mA
W/A
W/A
dB
15
13
0.050
0.030
-3
25
0.080
-1.6
2
MIN
NX8300BG-CC, NX8300CG-CC
TYP
2.0
1.1
15
1.6
25
50
100
40
60
0.130
0.150
MAX
畏
d
鈭?/div>
畏
d
P
f
= 2.0 mW, T
C
= 25擄C
P
f
= 2.0 mW
Temperature Dependence of Differential Efficiency,
畏
d
(@ T
C
擄C)
鈭?/div>
畏
d
= 10 log
畏
d
(@ 25 擄C)
Kink, P
f
= Up to 2.4 mW (Refer to defenitions)
Peak Emission Wavelength, P
f
= 2.0 mW
Temperature Dependence of Peak Emission Wavelength
Spectral Width, P
f
= 2.0 mW, -20 dB down width
Side Mode Suppression Ratio, P
f
= 2.0 mW
Cut-off Frequency, -3 dB, V
R
= 5 V, P
f
= 2.0 mW
Rise Time, 10 to 90%, P
pk
= 2.0 mW, I
F
= I
TH
Fall Time, 90 to 10%, P
pk
= 2.0 mW, I
F
= I
TH
Monitor Current, V
R
= 5 V, P
f
= 2.0 mW
Monitor Dark Current
V
R
= 5 V, T
C
= 25
擄C
V
R
= 5 V
Kink
位
p
鈭單?鈭員
鈭單?/div>
SMSR
f
c
t
r
t
f
I
m
I
D
%
nm
nm/擄C
nm
dB
GHz
ns
ns
碌A(chǔ)
nA
nA
200
1000
1.0
10
30
1530
1550
0.1
0.3
40
2.0
鹵20
1570
0.12
1.0
0.5
0.5
2000
50
500
continued next page
California Eastern Laboratories
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