CEL NX8562 User Manual
查询NX8562供应商
NEC's CW InGaAsP MQW DFB
LASER DIODE MODULE
NX8562
FOR DWDM APPLICATIONS
SERIES
(20 mW MIN)
FEATURES
• AVAILABLE FOR DWDM WAVELENGTHS BASED ON
ITU-T RECOMMENDATIONS
(100 GHz grid) refer to the Ordering Information
• OUTPUT POWER:
f = 20 mW MIN
P
• INTERNAL THERMOELECTRIC COOLER AND ISOLATOR
• HERMETICALLY SEALED 14-PIN BUTTERFLY PACKAGE
• POLARIZATION MAINTAIN FIBER PIGTAIL
ELECTRO-OPTICAL CHARACTERISTICS (TLD = 25°C, TC = -20 to +70°C)
PART NUMBER NX8562 Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
TSET Laser Set Temperature °C20 35
VF Forward Voltage, Pf = 20 mW V 1.2 1.5
IF Forward Current, Pf = 20 mW mA 120 167
ITH Threshold Current mA 20 40
Pf Optical Output Power from Fiber,
λp Peak Emission Wavelength1, Pf = 20 mW, CW, nm 1527.99 ITU-T
∆v Spectral 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
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.
IF = 167 mA, TLD = TSET mW 20
TLD = TSET
DESCRIPTION
NEC's NX8562 Series are a 1550 nm Multiple Quatum Well
(MQW) Distributed Feed-Back (DFB) laser diode with Polarization 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 Multiplexing (DWDM) wavelengths based on ITU-T recommendations, enabling a wide range of applications.
1
1611.78
California Eastern Laboratories
NX8562 SERIES
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Monitor PD: TLD = 25°C, TC = -20 to +70°C)
PART NUMBER NX8562 Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
Im Monitor Current, Pf = 20 mW, VR = 5 V µA 100 2000
ID Dark Current, VR = 5 V nA 10
1
γ
Tracking Error, Im = const. dB 0.5
Note:
1. γ = 10 log
P
f
20 mW
(mW)
10
P
f
f
P
0
(at P
I
m
f
(25°C) = 20 mW)
LD
= TC = 25°C
T
LD
= 25°C, TC = -20 to +70°C
T
I
m
ELECTRO-OPTICAL CHARACTERISTICS (Applicable to Thermistor and TEC: TLD = 25°C, TC = -20 to +70°C)
PART NUMBER NX8562 Series
SYMBOLS PARAMETERS AND CONDITIONS UNITS MIN TYP MAX
R Thermistor Resistance kΩ 9.5 10.0 10.5
B B Constant K 3350 3450 3550
IC Cooler Current, ∆T = 70 - Tset, Pf = 20 mW A 1
VC Cooler Voltage, ∆T = 70 - Tset, Pf = 20 mW V 2
ABSOLUTE MAXIMUM RATINGS
(TC = 25°C, unless otherwise specified)
SYMBOLS PARAMETERS UNITS RATINGS
IF Forward Current of LD mA 300
VR Reverse Voltage of LD V 2.0
IF Forward Current of PD mA 10
VR Reverse Voltage of PD V 20
TC Operating Case Temperature °C -20 to +70
TSTG Storage Temperature °C -40 to +85
TSLD Lead Soldering °C 260
Temperature (10 s)
Note:
1. Operation in excess of any one of these parameters may result
in permanent damage.
1
TYPICAL PERFORMANCE CURVES (TC = TSET, unless otherwise specified)
NX8562 SERIES
LONGITUDINAL MODE
10
0
-10
-20
-30
-40
-50
Relative Intensity (dB)
-60
-70
1540 1550
Wavelength λ (nm)
FORWARD CURRENT vs.
FORWARD VOLTAGE
120
100
(mA)
F
80
1560
OPTICAL OUTPUT POWER FROM FIBER
vs. FORWARD CURRENT
30.0
(mW)
f
25.0
20.0
15.0
10.0
5.0
0
Optical Output Power from Fiber, P
0 40 80 120 160 200
Forward Current, IF (mA)
OPTICAL OUTPUT POWER FROM FIBER
vs. MONITOR CURRENT
24.0
(mW)
f
20.0
16.0
60
40
Forward Current, I
20
0
0 0.4 0.8 1.2 1.6 2.0 2.4
Forward Voltage, VF (V)
THERMISTOR RESISTANCE vs.
AMBIENT TEMPERATURE
50
30
20
10
5
3
2
Thermistor Resistance, R (kΩ)
12.0
8.0
4.0
0
Optical Output Power from Fiber, P
0 0.2 0.8 1.2 1.6 2.0
Monitor Current, IM (mA)
1
025
Ambient Temperature, TA (°C)
50
75
Loading...