NEC's 1310 nm InGaAsP MQW FP LASER DIODE NX7302BA-CC IN COAXIAL PACKAGE NX7302CA-CC FOR 622 Mb/s APPLICATIONS
FEATURES
• CENTER WAVELENGTH: λC = 1310 nm • OPTICAL OUTPUT POWER: Pf = 0.2 mW • LOW THRESHOLD CURRENT: ITH = 9 mA • HIGH CUTOFF FREQUENCY: fC = 2.0 GHz • InGaAs MONITOR PIN-PD • WITH SC-UPC CONNECTOR • WIDE OPERATING TEMPERATURE RANGE: -40 to +85°C • BASED ON TELCORDIA RELIABILITY
DESCRIPTION
NEC's NX7302BA-CC and NX7302CA-CC are 1310 nm FabryPerot (FP) laser diode coaxial modules with single mode fiber. They have a Multiple Quantum Well (MQW) structure and a built-in InGaAs monitor photo diode. These modules are ideal as light sources for Synchronous Digital Hierarchy (SDH) systems, STM-4 and short-haul S-4.1 ITU-T recommendations.
ELECTRO-OPTICAL CHARACTERISTICS (TC = -40 to +85°C, unless otherwise specified)
PART NUMBER SYMBOLS Pf VOP ITH PTH IMOD ηd ∆ηd PARAMETERS AND CONDITIONS Optical Output Power from Fiber Operating Voltage, Pf = 0.2 mW Threshold Current Threshold Output Power, IF = ITH Modulation Current Differential Efficiency Pf = 0.2 mW, TC = 25°C Pf = 0.2 mW TC = +25°C UNITS mW V mA mA µW mA mA W/A W/A dB 7 5 0.010 0.005 -3 15 0.015 -2 4 2 MIN NX7302BA-CC, NX7302CA-CC TYP 0.2 1.2 9 1.5 20 50 15 20 40 0.025 0.040 MAX
Pf = 0.2 mW, TC = 25°C Pf = 0.2 mW Temperature Dependence of Differential Efficiency,
∆ηd = 10 log
Kink λc ∆λ/∆T σ fC tr tf Im ID Ct LINm γ
ηd (@ TC °C) ηd (@ 25 °C)
% nm nm/°C nm GHz ns ns µA nA nA pF % dB 0.5 100 1274 1310 0.4 1.3 2.0 0.2 0.3 700 0.1 10 0.5 0.5 1200 50 500 20 ±10 1.0 ±20 1356 0.5 2.5
Kink, Pf = Up to 0.24 mW (Refer to Definitions) Center Wavelength, Pf = 0.2 mW, RMS (-20 dB) Temperature Dependence of Center Wavelength Spectral Width, Pf = 0.2 mW, RMS (-20 dB) Cut-off Frequency, -3 dB Rise Time, 10 to 90%, Ppk = 0.2 mW, IF = ITH Fall Time, 90 to 10%, Ppk = 0.2 mW, IF = ITH Monitor Current, VR = 5 V, Pf = 0.2 mW Dark Current V R = 5 V, T C = 25 ° C VR = 5 V
Applicable to Monitor PD: TC = -40 to +85 °C unless otherwise specified
Terminal Capacitance, VR = 5 V, f = 1 MHz Linearity, VR = 5 V, Pf = 0.02 to 0.2 mW (Refer to Definitions) Tracking Error, Im = const. (Refer to Definitions)
California Eastern Laboratories
NX7302BA-CC, NX7302CA-CC ABSOLUTE MAXIMUM RATINGS1
(TC = 25°C, unless otherwise specified) SYMBOLS Pf IF VR IF VR TC TSTG TSLD RH PARAMETERS Optical Output Power from Fiber Forward Current of LD Reverse Voltage of LD Forward Current of PD Reverse Voltage of PD Operating Case Temperature Storage Temperature Lead Soldering Temperature (10 s) Relative Humidity (noncondensing) UNITS RATINGS mW mA V mA V °C °C °C % 0.5 150 2.0 10 20 -40 to +85 -40 to +85 260 85
Note: 1. Operation in excess of any one of these parameters may result in permanent damage.
PARAMETER DEFINITIONS
Kink : kink
Pf (mW) 0.24 dPo PK dPK IF - ηd IF - Pf
kink =
x 100 [%] PK dPK = dPo MAX PK ≤ 0.24 (mW)
|dPK|
0 (mA)
IF
Linearity : LINm
Pf (mW) 0.2 PK
LINm =
|dPL| x 100 [%] PL
PL dPL dPo 0.02 0 Im (mA)
dPL = dPo MAX 0.02 < PK < 0.2 (mW)
Tracking Error : γ
Pf (mW) TC = 25°C
0.2 TC = -40 to +85C Pf
Pf γ = |10 log 0.2
Im Im (mA)
| [dB]
0
NX7302BA-CC, NX7302CA-CC TYPICAL PERFORMANCE CURVES (TC = -40 to +85°C)
FORWARD CURRENT vs. FORWARD VOLTAGE OPTICAL OUTPUT POWER FROM FIBER vs. FORWARD CURRENT
Optical Output Power from Fiber, Pf (mW)
50
0.5 TC = -40°C +25°C 0.4 +70°C +85°C 0.3
Forward Current, IF (mA)
40
30
20
0.2
10
0.1
0 0 1 2
0 0 50 100 150
Forward Voltage, VF (V)
Forward Current, IF (mA)
OPERATING CURRENT AND THRESHOLD CURRENT vs. CASE TEMPERATURE
100
1360
TEMPERATURE DEPENDENCE OF CENTER WAVELENGTH
Center Wavelength, λc (nm)
Threshold Current, ITH (mA) Operating Current, IOP (mA)
50 30 20
IOP (@Pf = 0.2 mW)
1340
Ith
1320
10 5 3 2 1 -60
1300
1280
-40
-20
0
20
40
60
80
100
1260 -60
-40
-20
0
20
40
60
80
100
Case Temperature, TC (°C)
Case Temperature, TC (°C)
TEMPERATURE DEPENDENCE OF DIFFERENTIAL EFFICIENCY
0.03
LONGITUDINAL MODE
Differential Efficiency, ηd (W/A)
0.02
0.01
0 -60
Relative Intensity
1300
-40
-20
0
20
40
60
80
100
1310
1320
Wavelength, λ (nm) Case Temperature, TC (°C)
NX7302BA-CC, NX7302CA-CC TYPICAL PERFORMANCE CURVES
(TC = -40 to +85°C) OPTICAL OUTPUT POWER FROM FIBER vs. MONITOR CURRENT
1
ORDERING INFORMATION
PART NUMBER AVAILABLE CONNECTOR NX7302BA-CC NX7302CA-CC With SC-UPC Connector With SC-UPC Connector FLANGE TYPE Flat Mount Flange Vertical Mount Flange
Optical Output Power From Fiber, Pf (mW)
OPTICAL FIBER CHARACTERISTICS
PARAMETER
0.5
UNITS SPECIFICATION µm µm % % mm nm mm mm 9.5±1 125±2 2 1.6 0.9±0.1 1100 to 1270 30 500±50
Mode Field Diameter Cladding Diameter Maximum Cladding Noncircularity Maximum Core/Cladding Concentricity Outer Diameter Cut-off Wavelength
0
0
0.5
1.0
1.5
Minimum Fiber Bending Radius Fiber Length Flammability
Monitor Current, Im (mA)
UL 1581 VW-1
35±2 mm 8.99±0.5 mm
Fiber Length: 500±50 mm
OUTLINE DIMENSIONS (Units in mm)
NX7302BA-CC
Optical Fiber (SMF) Length: 0.5 m With SC Connector ø7.0±0.2 ø0.9
Optical Fiber (SMF) Length: 0.5 m With SC Connector ø7.0±0.2 ø0.9
NX7302CA-CC
6.0 18.3±1.0
6.0 5.1 26.1±1.0 15.0
8.0±0.3 3.2 4.0±0.2 2.2 ø2.2
25.5±1.0
0.5±0.2
8.0±0.3
ø0.45±0.05
1.2±0.2 20.0±1.0
ø0.45±0.05
16.0
12.7±0.2 17.0±0.2 P.C.D. = ø2.0
PIN CONNECTIONS PD 4 3
7.2±0.3 3.7±0.3
P.C.D. = ø2.0 4–R1.25±0.2 2 3 2–ø2.5 4 1 7.0±0.2
20.0±1.0
0.5
PIN CONNECTIONS
PD 3 4 LD 2 1 CASE
1.0±0.1
4 1
3 2
1 LD CASE
2
8.5±0.2 12.0±0.15
02/27/2003
A Business Partner of NEC Compound Semiconductor Devices, Ltd.