NEC's EA MODULATOR
INTEGRATED InGaAsP MQW DFB
LASER DIODE IN BUTTERFLY PACKAGE
WITH GPO CONNECTOR
FOR 10 Gb/s DWDM APPLICATIONS
NX8560LJ
SERIES
FEATURES
INTEGRATED ELECTROABSORPTION MODULATOR
UP TO 40 km TRANSMISSION CAPABILITY
WITH STANDARD SINGLE MODE FIBER
(dispersion 800 ps/nm)
LOW MODULATION VOLTAGE
7-PIN BUTTERFLY PACKAGE WITH GPOTM
CONNECTOR
AVAILABLE FOR DWDM WAVELENGTH
BASED ON ITU-T RECOMMENDATION
NEC's NX8560LJ Series are an Electro-Absorption (EA)
Modulator integrated, 1550 nm Multiple Quantum Well (MQW)
structured Distributed Feed-Back (DFB) laser diodes. It is ca-
pable of transmitting up to 40 km for 10 Gb/s applications by
using standard fiber dispersion 800 ps/nm and is available for
Dense Wavelength Multiplexing (DWDM) wavelength based
on ITU-T recommendations.
DESCRIPTION
California Eastern Laboratories
PACKAGE DIMENSIONS
(Units in mm)
NX8560LJ SERIES
Pin No.
1
2
3
4
5
6
7
Function
PIN CONNECTIONS
Thermistor
Thermistor
LD DC Bias
PD Anode
PD Cathode
Cooler Anode
Cooler Cathode
Optical Fiber (SMF)
with SC Connector
Length : 900 MIN.
30.0
8.
0
0.75
TOP VIEW
PD
+
-
LD
#7
#1
MOD
Cooler
Thermistor
5.08
5.4
20.830.13
26.040.13
7
1
1.25
15.24
2.54
4 2.67
22.0 MAX.
12.70.15
10 MIN.
8.890.13
0.
9
4.83
6.0 MAX.
7 0.5
GPO
Connector
PARAMETER
SPECIFICATION
UNIT
Mode Field Diameter
9.30.5
m
Cladding Diameter
1251
m
Tight Buffer Diameter
900100
m
Cut-off Wavelength
< 1 270
nm
Attenuation 1 525 to 1 575 nm
< 0.3
dB/km
Minimum Fiber Bending Radius
30
mm
Fiber Length
900 MIN.
mm
Flammability
UL1581 VW-1
OPTICAL FIBER CHARACTERISTICS
-BC : FC-UPC connector
-CC : SC-UPC connector
Fiber Length : 900 mm MIN.
352 mm
8.990.5 mm
NX8560LJ SERIES
NX8560LJ
-
CC : SC-UPC connector (standard)
BC : FC-UPC connector (option)
Without wavelength code : Wavelength is a certain point between
1 528 to 1 565 nm
With wavelength code : Refer to
Table A
Wavelength
Code
ITU-T Wavelength
*1
(nm)
Frequency
(THz)
Wavelength
Code
ITU-T Wavelength
*1
(nm)
Frequency
(THz)
287
1528.77
196.10
501
1550.11
193.40
295
1529.55
196.00
509
1550.91
193.30
303
1530.33
195.90
517
1551.72
193.20
311
1531.11
195.80
525
1552.52
193.10
318
1531.89
195.70
533
1553.32
193.00
326
1532.68
195.60
541
1554.13
192.90
334
1533.46
195.50
549
1554.94
192.80
342
1534.25
195.40
557
1555.74
192.70
350
1535.03
195.30
565
1556.55
192.60
358
1535.82
195.20
573
1557.36
192.50
366
1536.60
195.10
581
1558.17
192.40
373
1537.39
195.00
589
1558.98
192.30
381
1538.18
194.90
597
1559.79
192.20
389
1538.97
194.80
606
1560.60
192.10
397
1539.76
194.70
614
1561.41
192.00
405
1540.55
194.60
622
1562.23
191.90
413
1541.35
194.50
630
1563.04
191.80
421
1542.14
194.40
429
1542.93
194.30
437
1543.73
194.20
445
1544.52
194.10
453
1545.32
194.00
461
1546.11
193.90
469
1546.91
193.80
477
1547.71
193.70
485
1548.51
193.60
493
1549.31
193.50
Table A: DWDM wavelength base on ITU-T recommendations
(@ T
LD
= T
set
)
PART NUMBER
PACKAGE
NX8560LJ-AZ *
7-Pin Butterfly Package with GPOTM
Connector
*NOTE:
Please refer to the last page of this data sheet, "Compliance with EU Directives" for Pb-Free RoHS Compliance Infomation.
ORDERING INFOMATION
NX8560LJ SERIES
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Optical Output Power from Fiber
P
f
10
mW
Forward Current of LD
I
FLD
150
mA
Reverse Voltage of LD
V
RLD
2.0
V
Forward Voltage of Modulator
V
FEA
1
V
Reverse Voltage of Modulator
V
REA
4
V
Forward Current of PD
I
FPD
1
mA
Reverse Voltage of PD
V
RPD
10
V
Cooler Current
I
C
1.5
A
Cooler Voltage
V
C
2.5
V
Operating Case Temperature
T
C
-
20 to +70
C
Storage Temperature
T
stg
-
40 to +85
C
Lead Soldering Temperature
T
sld
350 (3 sec.)
C
NX8560LJ SERIES
ELECTRO-OPTICAL CHARACTERISTICS
(T
C
= -25C, unless otherwise specified)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Laser Set Temperature
T
set
*1
20
35
C
Operating Current
I
op
50
60
80
mA
Modulation Center Voltage
V
center
-
2.0
-
0.5
V
Modulation Voltage
V
mod
2.0
3.0
V
Forward Voltage of LD
V
FLD
I
FLD
= I
op
2.0
V
Threshold Current
I
th
7
20
mA
Optical Output Power from Fiber
P
f
Under modulation
*2
, Single channel
-
3
-
2
dBm
Under modulation
*2
,
DWDM wavelength based on ITU-T
recommendations
-
1
Peak Emission Wavelength
p
I
FLD
= I
op
, V
EA
= 0 V, T
LD
= T
set
1 528
ITU-
T
*3
1 565
nm
Side Mode Suppression Ratio
SMSR
I
FLD
= I
op
, V
EA
= 0 V
30
> 37
dB
Extinction Ratio
ER
Under modulation
*2
10
> 11
dB
Rise Time
t
r
20-80%, Under modulation
*2
40
ps
Fall Time
t
f
80-20%, Under modulation
*2
40
ps
Dispersion Penalty
DP
40 km SMF under modulation
*2, 4
2.0
dB
Optical Isolation
I
s
23
dB
Input Return Loss
S
11
I
FLD
= I
op
, V
EA
= -1 V,
f = 130 MHz to 5 GHz
-
10
-
8
dB
I
FLD
= I
op
, V
EA
= -1 V,
f = 5 to 10 GHz
-
8
-
5
*1 NX8560LJ Series
: T
set
is a certain point between 20 and 35C
NX8560LJ Series : T
set
is set at a certain point between 20 and 35C for ITU-T grid wavelength
*2 40 km SMF under modulation, 9.95328 Gb/s, PRBS 2
23
-
1, V
EA
= V
center
1/2V
mod
, I
FLD
= I
op
, NEC Test System
V
center
: a certain point between -2.0 and -0.5 V
V
mod
: a certain point 3 V or below
I
op
: a certain point between 50 and 80 mA
*3 Available for DWDM wavelengths based on ITU-T recommendations (100 GHz grid).
Please refer to
ORDERING INFORMATION.
*4 BER = 10
-
10
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