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NEC's 1550 nm InGaAsP MQW DFB LASER DIODE NX8503BG-CC IN COAXIAL PACKAGE NX8503CG-CC FOR 155 Mb/s AND 622 Mb/s APPLICATIONS
FEATURES
* PEAK EMISSION WAVELENGTH: P = 1550 nm * OPTICAL OUTPUT POWER: Pf = 2.0 mW * LOW THRESHOLD CURRENT: ITH = 15 mA @ TC = 25C * InGaAs MONITOR PIN-PD * WIDE OPERATING TEMPERATURE RANGE: TC = -10 to +85C * WITH SC-UPC CONNECTOR * BASED ON TELCORDIA RELIABILITY The module is ideal as a light source for Synchronous Digital Hierarchy (SDH) system, STM-1, log-haul L-1.2, L-1.3 and STM-4, long-haul L-4.2, L-4.3 ITU-T recommendations.
DESCRIPTION
NEC's NX8503BG-CC and NX8503CG-CC are 1550 nm Coaxial Module DFB (Distributed Feed-Back) laser diode with single mode fiber. Multiple Quantum Well (MQW) structure is adopted to achieve stable dynamic single longitudinal mode operation over a wide temperature range of -10 to +85C.
ELECTRO-OPTICAL CHARACTERISTICS (TC = -10 to +85C, unless otherwise specified)
PART NUMBER SYMBOLS Pf VOP ITH PTH IMOD PARAMETERS AND CONDITIONS Optical Output Power from Fiber, CW Operating Voltage, Pf = 2.0 mW Threshold Current Threshold Output Power, IF = ITH Modulation Current Differential Efficiency Pf = 2.0 mW, TC = 25C Pf = 2.0 mW TC = +25C UNITS mW V mA mA W mA mA W/A W/A dB 15 13 0.050 0.030 -3 25 0.080 -1.6 2 MIN NX8300BG-CC, NX8300CG-CC TYP 2.0 1.1 15 1.6 25 50 100 40 60 0.130 0.150 MAX
d
d
Pf = 2.0 mW, TC = 25C Pf = 2.0 mW Temperature Dependence of Differential Efficiency, d (@ TC C) d = 10 log d (@ 25 C) Kink, Pf = Up to 2.4 mW (Refer to defenitions) Peak Emission Wavelength, Pf = 2.0 mW Temperature Dependence of Peak Emission Wavelength Spectral Width, Pf = 2.0 mW, -20 dB down width Side Mode Suppression Ratio, Pf = 2.0 mW Cut-off Frequency, -3 dB, VR = 5 V, Pf = 2.0 mW Rise Time, 10 to 90%, Ppk = 2.0 mW, IF = ITH Fall Time, 90 to 10%, Ppk = 2.0 mW, IF = ITH Monitor Current, VR = 5 V, Pf = 2.0 mW Monitor Dark Current VR = 5 V, TC = 25 C VR = 5 V
Kink p /T SMSR fc tr tf Im ID
% nm nm/C nm dB GHz ns ns A nA nA 200 1000 1.0 10 30 1530 1550 0.1 0.3 40 2.0
20 1570 0.12 1.0
0.5 0.5 2000 50 500 continued next page
California Eastern Laboratories
NX8503BG-CC, NX8503CG-CC ELECTRO-OPTICAL CHARACTERISTICS cont. (TC = -10 to +85C, unless otherwise specified)
PART NUMBER SYMBOLS Ct LINm RIN PARAMETERS AND CONDITIONS Monitor PD Terminal Capacitance, VR = 5 V, f = 1 MHz Linearity, VR = 5 V, Pf = 0.2 to 2.0 mW (Refer to defenitions) Tracking Error, Im = const. (Refer to defenitions) Relative Intensity Noise, Ref = -14dB UNITS pF % dB dB/Hz 0.5 -135 MIN NX8503BG-CC, NX8503BG-CC TYP 1.0 MAX 20 10 1.0
ABSOLUTE MAXIMUM RATINGS1
(TC = -20 to +85C, unless otherwise specified) SYMBOLS IF Pf VR IF VR TC TSTG TSLD RH PARAMETERS Forward Current of LD Optical Output Power from Fiber Reverse Voltage of LD Forward Current of PD Reverse Voltage of PD Operating Case Temperature Storage Temperature Lead Soldering Temperature (10 s) Relative Humidity (non-condensing) UNITS mA mW V mA V C C C % RATINGS 150 5.0 2.0 2.0 15 -10 to +85 -40 to +85 260 85
Note: 1. Operation in excess of any one of these parameters may result in permanent damage.
NX8503BG-CC, NX8503CG-CC PARAMETER DEFINITIONS
Kink : kink
(mW) 2.4 dPo PK dPK IF - d Pf IF - Pf
kink =
x 100 [%] PK dPK = dPo MAX PK 2.4 (mW)
|dPK|
0 (mA)
IF
Linearity : LINm
Pf (mW) 2.0
LINm =
PK
|dPL| x 100 [%] PL
PL dPL dPo 0.2 0 Im (mA)
dPL = dPo MAX 0.2 < PL < 2.0 (mW)
Tracking Error :
Pf (mW) TC = 25C
2.0 TC = -10 to +85C Pf
= |10 log
Pf 2.0
| [dB]
0
Im
Im (mA)
TYPICAL CHARACTERISTICS (TC = 25 C, Unless otherwise specified)
OPTICAL OUTPUT POWER vs. FORWARD CURRENT
3.0
OPTICAL OUTPUT POWER vs. MONITOR CURRENT
3.0 TC = -10 C +25 C
C
C
C
Optical Output Power PI (mW)
+25
+85
2.0
Optical Output Power PI (mW)
TC =
-10
2.0 +85 C
1.0
1.0
0
20
40
60
80
100
0.0
0.4
0.8
1.2
Forward Current IF (mA)
Monitor Current IF (mA)
NX8503BG-CC, NX8503CG-CC TYPICAL CHARACTERISTICS (TC = 25 C, Unless otherwise specified)
OPERATING CURRENT AND THRESHOLD CURRENT vs. CASE TEMPERATURE
100 Iop @ Pr = 2 mW
50
FORWARD CURRENT vs. FORWARD VOLTAGE
Operating Current Iop (mA) Threshold Curent Ith (mA)
Forward Current IF (mA)
0 20 40 60 80 100
40
10
Ith
30
20
10
1 -40
-20
0
0.5
1.0
1.5
2.0
2.5
Case Temperature Tc (C)
Forward Voltage VF (V)
TEMPERATURE DEPENEDENCE OF DIFFERNTIAL EFFICIENCY
0.18
TEMPERATURE DEPENEDENCE OF PEAK EMISSION WAVELENGHT
1565
Peak Emission Wavelenght p (nm)
-20 0 20 40 80 100
Differemtial Effieciency d (W/A)
1560
0.12
1555
0.06
1550
0.00 -40
60
1545 -40
-20
0
20
40
60
80
100
Case Temperature Tc (C)
Case Temperature Tc (C)
SPECTRUM
10 0
Relative Intensity (dB)
-10 -20 -30 -40 -50 -60 -70 1545.0
1555.0
1565.0
Wavelength (nm) REMARK The graphs indicate nominal charachteristics.
NX8503BG-CC, NX8503CG-CC OUTLINE DIMENSIONS (Units in mm)
NX8503BG-CC
Optical Fiber (SMF) Length: 0.5 m With SC Connector o7.00.2 o0.9 Optical Fiber (SMF) Length: 0.5 m With SC Connector 6.0 18.31.0 8.00.3 3.2 4.00.2 2.2 o2.2 1.20.2 o0.450.05 20.01.0 12.70.2 17.00.2 16.0 25.51.0 8.00.3
0.50.3
NX8503CG-CC
o0.9
o7.00.2
6.0 15.0 28.31.0
7.3
0.5
o0.450.05
19.51.0
PIN CONNECTIONS
P.C.D. = o2.0
PD 4 3 2 LD CASE
PIN CONNECTIONS
P.C.D. = o2.0 4-R1.250.2 2 3 2-o2.5 4 1 7.00.2
3
1.00.1
7.20.3 3.70.3
PD
2 1
1
CASE
4 LD
8.50.2 12.00.15
OPTICAL FIBER CHARACTERISTICS
PARAMETER SPEC Mode Field Doameter 9.51 Cladding Diameter 1252 Maximum Cladding Noncircularity 2 Maximum Core/Cladding Concentricity 1.6 Outer Diameter 0.90.1 Cut-off Wavelength 1100 to 1270 Minimum Fiber Bending Radius 30 Fiber Length 50050 MIN Flammability UL1581 VW-1 UNIT m m % % mm nm mm mm
ORDERING INFORMATION
PART NUMBER AVAILABLE CONNECTOR FLANGE TYPE NX8503BG-CC With SC-UPC Connector Flat Mount Flange Vertical Mount NX8503CG-CC Flange
352 mm 8.990.5 mm
SC-UPC Connector
Fiber Length: 50050 mm
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.
03/03/2003
A Business Partner of NEC Compound Semiconductor Devices, Ltd.

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