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:
Pf = 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
TSET Laser Set Temperature °C20 35
VFForward Voltage, Pf = 20 mW V 1.2 1.5
IF Forward Current, Pf = 20 mW mA 120 167
ITH Threshold Current mA 20 40
PfOptical Output Power from Fiber,
IF = 167 mA, TLD = TSET mW 20
λpPeak Emission Wavelength1, Pf = 20 mW, CW, nm 1527.99 ITU-T11611.78
TLD = TSET
∆vSpectral Line Width, Pf = 10 mW, CW, 3 dB down MHz 1 2
SMSR Side Mode Suppression Ratio, Pf = 20 mW, CW dB 33 45
RIN Relative Intensity Noise, Pf = 20 mW, 20 MHz to 3 GHz dB/Hz -150
ext Polarization Extinction Ratio2, Pf = 20 mW, CW dB 20
ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25°C, TC = -20 to +70°C)
California Eastern Laboratories
NX8562 SERIES
PART NUMBER NX8562 Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
ImMonitor Current, Pf = 20 mW, VR = 5 V µA100 2000
IDDark Current, VR = 5 V nA 10
γ1Tracking Error, Im = const. dB 0.5
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Monitor PD: TLD = 25°C, TC = -20 to +70°C)
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. γ = 10 log Pf
20 mW
ABSOLUTE MAXIMUM RATINGS1
(TC = 25°C, unless otherwise specified)
SYMBOLS PARAMETERS UNITS RATINGS
IFForward Current of LD mA 300
VRReverse Voltage of LD V 2.0
IFForward Current of PD mA 10
VRReverse Voltage of PD V 20
TCOperating Case Temperature °C -20 to +70
TSTG Storage Temperature °C -40 to +85
TSLD Lead Soldering °C260
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
RThermistor Resistance kΩ9.5 10.0 10.5
BB Constant K 3350 3450 3550
ICCooler Current, ∆T = 70 - Tset, Pf = 20 mW A 1
VCCooler Voltage, ∆T = 70 - Tset, Pf = 20 mW V 2
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Thermistor and TEC: TLD = 25°C, TC = -20 to +70°C)
NX8562 SERIES
TYPICAL PERFORMANCE CURVES (TC = TSET, unless otherwise specified)
LONGITUDINAL MODE
Wavelength λ (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
004080120 160 200
120
100
80
60
40
20
00 0.4 0.8 1.2 1.6 2.0 2.4
24.0
20.0
16.0
12.0
8.0
4.0
00 0.2 0.8 1.2 1.6 2.0
025
50 75
50
30
20
10
5
3
2
1
OPTICAL OUTPUT POWER FROM FIBER
vs. FORWARD CURRENT
Forward Current, IF (mA)
Optical Output Power from Fiber, P
f
(mW)
FORWARD CURRENT vs.
FORWARD VOLTAGE
Forward Voltage, VF (V)
Forward Current, I
F
(mA)
OPTICAL OUTPUT POWER FROM FIBER
vs. MONITOR CURRENT
Optical Output Power from Fiber, P
f
(mW)
Monitor Current, IM (mA)
THERMISTOR RESISTANCE vs.
AMBIENT TEMPERATURE
Ambient Temperature, TA (°C)
Thermistor Resistance, R (kΩ)
ORDERING INFORMATION
Wavelength code ITU-T1 Wavelength Frequency Wavelength code ITU-T1 Wavelength Frequency
(nm) (THz) (nm) (THz)
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
Note:
1. The Value which omitted and computed the 3rd place below the decimal point.
NX8562 SERIES
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 (@TLD = Tset)
BA
NX8562
With FC-PC Connector
Wavelength Code: Refer to Tables A and
B
LB: Anode Ground
LF: Anode Floating
Wavelength code ITU-T1 Wavelength Frequency Wavelength code ITU-T1 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 (@TLD = Tset)
Note:
1. The Value which omitted and computed the 3rd place below the decimal point.
NX8562 SERIES
NX8562 Series
OUTLINE DIMENSIONS (Units in mm)
OPTICAL FIBER DIMENSIONS (Units in mm)
#7 #1
#8
Cooler
+-
PD
LD
Thermistor
L
#14
Optical Fiber (PMF)
Length : 1000 MIN
29.97±0.25
0.3
1.0
5.15
0.5
20.83±0.25
26.04±0.25
15.24
71
814
2.54
20.8
φ2.67 4 places
1.25
0.9
R
10 MIN
8.89±0.13 12.7±0.2
6.0
8.2±0.2 5.4
NX8562LB
TOP VIEW
Life Support Applications
These NEC products are not intended for use in life support devices, appliances, or systems where the malfunction of these products can reasonably be expected
to result in personal injury. The customers of CEL using or selling these products for use in such applications do so at their own risk and agree to fully indemnify
CEL for all damages resulting from such improper use or sale.
A Business Partner of NEC Com
p
ound Semiconductor Devices, Ltd
.
04/02/2003
Fiber Length: 1000 mm MIN
PMF
FC-PC Connector
PIN No. FUNCTION PIN No. FUNCTION
1THERMISTOR 8 GND
2THERMISTOR 9 GND
3BIAS 10 GND
4PD ANODE 11 GND, LD ANODE
5PD CATHODE, 12 SIGNAL INPUT
6COOLER ANODE 13 GND
7COOLER CATHODE 14 GND
PIN CONNECTIONS
#7 #1
#8
Cooler
+- PD
LD
Thermistor
L
#14
R
NX8562LF
TOP VIEW
PIN No. FUNCTION PIN No. FUNCTION
1THERMISTOR 8 GND
2THERMISTOR 9 GND
3LD Cathode 10 PD (λp) ANODE
4PD (Pf) ANODE 11 LD ANODE
5PD CATHODE 12 LD CATHODE
6COOLER ANODE 13 LD ANODE
7COOLER CATHODE 14 NC
PIN CONNECTIONS
Paramter Unit Specification
Outer Diameter mm 0.9±0.1
Minimum Fiber Bending Radius mm 30
Fiber Length mm 1000 MIN
