NEC's CW InGaAsP MQW DFB
LASER DIODE MODULE
FOR DWDM APPLICATIONS
(20 mW MIN)
NX8562
SERIES
FEATURES
AVAILABLE FOR DWDM WAVELENGTHS BASED ON
ITU-T RECOMMENDATIONS
(100 GHz grid) refer to the Ordering Information
OUTPUT POWER:
P
f
= 20 mW MIN
INTERNAL THERMOELECTRIC COOLER AND ISOLATOR
HERMETICALLY SEALED 14-PIN BUTTERFLY PACKAGE
POLARIZATION MAINTAIN FIBER PIGTAIL
NEC's NX8562 Series are a 1550 nm Multiple Quatum Well
(MQW) Distributed Feed-Back (DFB) laser diode with Polar-
ization Maintain Fiber (PMF). This device is designed as a
Continuous Wave (CW) light source and is ideal for optical
transmission systems in which external modulators are used.
The device is available for Dense Wavelength Division Multi-
plexing (DWDM) wavelengths based on ITU-T recommenda-
tions, enabling a wide range of applications.
DESCRIPTION
Notes:
1. Available for DWDM based on ITU-T recommendations. please refer to Ordering Information.
2. Polarization state of LD is aligned parallel to the slow axis.
PART NUMBER
NX8562 Series
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
T
SET
Laser Set Temperature
C
20
35
V
F
Forward Voltage, P
f
= 20 mW
V
1.2
1.5
IF
Forward Current, Pf = 20 mW
mA
120
167
I
TH
Threshold Current
mA
20
40
P
f
Optical Output Power from Fiber,
I
F
= 167 mA, T
LD
= T
SET
mW
20
p
Peak Emission Wavelength
1
, P
f
= 20 mW, CW,
nm
1527.99
ITU-T
1
1611.78
T
LD
= T
SET
v
Spectral Line Width, P
f
= 10 mW, CW, 3 dB down
MHz
1
2
SMSR
Side Mode Suppression Ratio, P
f
= 20 mW, CW
dB
33
45
R
IN
Relative Intensity Noise, P
f
= 20 mW, 20 MHz to 3 GHz
dB/Hz
-150
ext
Polarization Extinction Ratio
2
, P
f
= 20 mW, CW
dB
20
ELECTRO-OPTICAL CHARACTERISTICS
(T
LD
= 25C, T
C
= -20 to +70C)
California Eastern Laboratories
NX8562 SERIES
PART NUMBER
NX8562 Series
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
I
m
Monitor Current, P
f
= 20 mW, V
R
= 5 V
A
100
2000
I
D
Dark Current, V
R
= 5 V
nA
10
1
Tracking Error, I
m
= const.
dB
0.5
ELECTRO-OPTICAL CHARACTERISTICS
(Applicable to Monitor PD: T
LD
= 25C, T
C
= -20 to +70C)
P
f
(mW)
T
LD
= T
C
= 25
C
(at P
f
(25
C) = 20 mW)
T
LD
= 25
C, T
C
= -20 to +70
C
10
0
P
f
I
m
I
m
Note:
1. = 10 log
P
f
20 mW
ABSOLUTE MAXIMUM RATINGS
1
(T
C
= 25C, unless otherwise specified)
SYMBOLS
PARAMETERS
UNITS
RATINGS
I
F
Forward Current of LD
mA
300
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
-20 to +70
T
STG
Storage Temperature
C
-40 to +85
T
SLD
Lead Soldering
C
260
Temperature (10 s)
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
PART NUMBER
NX8562 Series
SYMBOLS
PARAMETERS AND CONDITIONS
UNITS
MIN
TYP
MAX
R
Thermistor Resistance
k
9.5
10.0
10.5
B
B Constant
K
3350
3450
3550
I
C
Cooler Current, T = 70 - T
set
, P
f
= 20 mW
A
1
V
C
Cooler Voltage, T = 70 - T
set
, P
f
= 20 mW
V
2
ELECTRO-OPTICAL CHARACTERISTICS
(Applicable to Thermistor and TEC: T
LD
= 25C, T
C
= -20 to +70C)
NX8562 SERIES
TYPICAL PERFORMANCE CURVES
(T
C
= T
SET
, unless otherwise specified)
LONGITUDINAL MODE
Wavelength (nm)
Relative Intensity (dB)
10
0
-10
-20
-30
-40
-50
-60
-70
1540
1550
1560
30.0
25.0
20.0
15.0
10.0
5.0
0
0
40
80
120
160
200
120
100
80
60
40
20
0
0
0.4
0.8
1.2
1.6
2.0
2.4
24.0
20.0
16.0
12.0
8.0
4.0
0
0
0.2
0.8
1.2
1.6
2.0
0
25
50
75
50
30
20
10
5
3
2
1
OPTICAL OUTPUT POWER FROM FIBER
vs. FORWARD CURRENT
Forward Current, I
F
(mA)
Optical Output Power from Fiber, P
f
(mW)
FORWARD CURRENT vs.
FORWARD VOLTAGE
Forward Voltage, V
F
(V)
Forward Current, I
F
(mA)
OPTICAL OUTPUT POWER FROM FIBER
vs. MONITOR CURRENT
Optical Output Power from Fiber, P
f
(mW)
Monitor Current, I
M
(mA)
THERMISTOR RESISTANCE vs.
AMBIENT TEMPERATURE
Ambient Temperature, T
A
(C)
Thermistor Resistance, R (k
)
NX8562 SERIES
BA
NX8562
With FC-PC Connector
Wavelength Code: Refer to Tables A and B
LB: Anode Ground
LF: Anode Floating
279
1527.99
196.20
287
1528.77
196.10
295
1529.55
196.00
303
1530.33
195.90
311
1531.11
195.80
318
1531.89
195.70
326
1532.68
195.60
334
1533.46
195.50
342
1534.25
195.40
350
1535.03
195.30
358
1535.82
195.20
366
1536.60
195.10
373
1537.39
195.00
381
1538.18
194.90
389
1538.97
194.80
397
1539.76
194.70
405
1540.55
194.60
413
1541.34
194.50
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
Wavelength code
ITU-T
1
Wavelength
Frequency
Wavelength code
ITU-T
1
Wavelength
Frequency
(nm)
(THz)
(nm)
(THz)
Note:
1. The Value which omitted and computed the 3rd place below the decimal point.
485
1548.51
193.60
493
1549.31
193.50
501
1550.11
193.40
509
1550.91
193.30
517
1551.72
193.20
525
1552.52
193.10
533
1553.32
193.00
541
1554.13
192.90
549
1554.94
192.80
557
1555.74
192.70
565
1556.55
192.60
573
1557.36
192.50
581
1558.17
192.40
589
1558.98
192.30
597
1559.79
192.20
606
1560.60
192.10
614
1561.41
192.00
622
1562.23
191.90
630
1563.04
191.80
638
1563.86
191.70
646
1564.67
191.60
654
1565.49
191.50
663
1566.31
191.40
671
1567.13
191.30
679
1567.95
191.20
687
1568.77
191.10
TABLE A: DWDM Wavelength based on ITU-T Recommendations (@T
LD
= Tset)
ORDERING INFORMATION
PART NUMBER
PACKAGE
NX8562-AZ*
14-Pin Butttterfly
*NOTE:
Please refer to the last page of this data sheet, "Compliance with EU Directives" for Pb-Free RoHS Compliance Infomation.
Wavelength code
ITU-T
1
Wavelength
Frequency
Wavelength code
ITU-T
1
Wavelength
Frequency
(nm)
(THz)
(nm)
(THz)
695
1569.59
191.00
704
1570.41
190.90
712
1571.23
190.80
720
1572.06
190.70
728
1572.88
190.60
737
1573.71
190.50
745
1574.54
190.40
753
1575.36
190.30
761
1576.19
190.20
770
1577.02
190.10
778
1577.85
190.00
786
1578.68
189.90
795
1579.51
189.80
803
1580.35
189.70
811
1581.18
189.60
820
1582.01
189.50
828
1582.85
189.40
836
1583.69
189.30
845
1584.52
189.20
853
1585.36
189.10
862
1586.20
189.00
870
1587.04
188.90
878
1587.88
188.80
887
1588.72
188.70
895
1589.56
188.60
4904
1590.41
188.50
912
1591.25
188.40
921
1592.10
188.30
929
1592.94
188.20
937
1593.79
188.10
946
1594.64
188.00
954
1595.48
187.90
963
1596.33
187.80
971
1597.18
187.70
980
1598.04
187.60
988
1598.89
187.50
997
1599.74
187.40
6006
1600.60
187.30
6014
1601.45
187.20
6023
1602.31
187.10
6031
1603.16
187.00
6040
1604.02
186.90
6048
1604.88
186.80
6057
1605.74
186.70
6066
1606.60
186.60
6074
1607.46
186.50
6083
1608.32
186.40
6091
1609.19
186.30
6100
1610.05
186.20
6109
1610.92
186.10
6117
1611.78
186.00
TABLE B: DWDM Wavelength based on ITU-T Recommendations (@T
LD
= Tset)
Note:
1. The Value which omitted and computed the 3rd place below the decimal point.
NX8562 SERIES
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