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 DESCRIPTION • PEAK EMISSION WAVELENGTH: λP = 1550 nm 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 +85°C. • OPTICAL OUTPUT POWER: Pf = 2.0 mW • LOW THRESHOLD CURRENT: 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. ITH = 15 mA @ TC = 25°C • InGaAs MONITOR PIN-PD • WIDE OPERATING TEMPERATURE RANGE: TC = -10 to +85°C • WITH SC-UPC CONNECTOR • BASED ON TELCORDIA RELIABILITY ELECTRO-OPTICAL CHARACTERISTICS (TC = -10 to +85°C, unless otherwise specified) PART NUMBER SYMBOLS Pf PARAMETERS AND CONDITIONS Optical Output Power from Fiber, CW VOP Operating Voltage, Pf = 2.0 mW ITH Threshold Current TC = +25°C NX8300BG-CC, NX8300CG-CC UNITS MIN TYP MAX mW 2.0 V 1.1 1.6 mA mA 15 25 50 2 PTH Threshold Output Power, IF = ITH µW IMOD Modulation Current Pf = 2.0 mW, TC = 25°C Pf = 2.0 mW mA mA 15 13 25 40 60 W/A W/A dB 0.050 0.030 -3 0.080 0.130 0.150 ∆ηd Pf = 2.0 mW, TC = 25°C Pf = 2.0 mW Temperature Dependence of Differential Efficiency, ηd (@ TC °C) ∆ηd = 10 log ηd (@ 25 °C) Kink Kink, Pf = Up to 2.4 mW (Refer to defenitions) ηd λp ∆λ/∆T ∆λ SMSR Differential Efficiency 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 100 -1.6 % nm ±20 1550 1570 nm/°C 0.1 0.12 nm 0.3 1.0 dB 1530 30 Cut-off Frequency, -3 dB, VR = 5 V, Pf = 2.0 mW tr Rise Time, 10 to 90%, Ppk = 2.0 mW, IF = ITH ns 0.5 tf Fall Time, 90 to 10%, Ppk = 2.0 mW, IF = ITH ns 0.5 Im Monitor Current, VR = 5 V, Pf = 2.0 mW µA ID Monitor Dark Current nA nA VR = 5 V, TC = 25 °C VR = 5 V GHz 40 fc 2.0 200 1000 1.0 10 2000 50 500 continued next page California Eastern Laboratories NX8503BG-CC, NX8503CG-CC ELECTRO-OPTICAL CHARACTERISTICS cont. (TC = -10 to +85°C, unless otherwise specified) PART NUMBER NX8503BG-CC, NX8503BG-CC SYMBOLS PARAMETERS AND CONDITIONS UNITS Ct Monitor PD Terminal Capacitance, VR = 5 V, f = 1 MHz pF Linearity, VR = 5 V, Pf = 0.2 to 2.0 mW (Refer to defenitions) % LINm γ RIN Tracking Error, Im = const. (Refer to defenitions) Relative Intensity Noise, Ref = -14dB ABSOLUTE MAXIMUM RATINGS1 (TC = -20 to +85°C, unless otherwise specified) SYMBOLS UNITS RATINGS IF Forward Current of LD PARAMETERS mA 150 Pf Optical Output Power from Fiber mW 5.0 VR Reverse Voltage of LD V 2.0 2.0 IF Forward Current of PD mA VR Reverse Voltage of PD V 15 TC Operating Case Temperature °C -10 to +85 TSTG Storage Temperature °C -40 to +85 TSLD Lead Soldering Temperature (10 s) °C 260 % 85 RH Relative Humidity (non-condensing) Note: 1. Operation in excess of any one of these parameters may result in permanent damage. MIN TYP 1.0 MAX 20 10 dB 0.5 dB/Hz -135 1.0 NX8503BG-CC, NX8503CG-CC PARAMETER DEFINITIONS Kink : kink Pf (mW) IF - Pf 2.4 dPo dPK PK IF - ηd 0 kink = |dPK| x 100 [%] PK dPK = dPo MAX PK ≤ 2.4 (mW) IF (mA) Linearity : LINm Pf (mW) 2.0 LINm = PK |dPL| x 100 [%] PL dPL = dPo MAX 0.2 < PL < 2.0 (mW) PL dPL dPo 0.2 0 Im (mA) Tracking Error : γ Pf (mW) TC = 25°C γ = |10 log 2.0 Pf 2.0 | [dB] TC = -10 to +85C Pf 0 Im Im (mA) TYPICAL CHARACTERISTICS (TC = 25 ºC, Unless otherwise specified) OPTICAL OUTPUT POWER vs. FORWARD CURRENT OPTICAL OUTPUT POWER vs. MONITOR CURRENT 3.0 Optical Output Power PI (mW) +85 2.0 1.0 0 20 40 TC = –10 ºC +25 ºC ºC ºC +25 -10 TC = Optical Output Power PI (mW) ºC 3.0 60 80 Forward Current IF (mA) 100 2.0 +85 ºC 1.0 0.0 0.4 0.8 Monitor Current IF (mA) 1.2 NX8503BG-CC, NX8503CG-CC TYPICAL CHARACTERISTICS (TC = 25 ºC, Unless otherwise specified) FORWARD CURRENT vs. FORWARD VOLTAGE OPERATING CURRENT AND THRESHOLD CURRENT vs. CASE TEMPERATURE 100 50 Ith 10 1 -40 Forward Current IF (mA) Operating Current Iop (mA) Threshold Curent Ith (mA) Iop @ Pr = 2 mW -20 0 20 40 100 80 60 40 30 20 10 0 0.5 Case Temperature Tc (ºC) TEMPERATURE DEPENEDENCE OF DIFFERNTIAL EFFICIENCY Peak Emission Wavelenght ηp (nm) Differemtial Effieciency ηd (W/A) 0.06 -20 0 20 40 60 80 100 Case Temperature Tc (ºC) 10 0 -10 -20 -30 -40 -50 -60 1555.0 1560 1555 1550 1545 -40 -20 0 20 40 60 80 Case Temperature Tc (ºC) SPECTRUM Relative Intensity (dB) 2.5 2.0 1565 0.12 -70 1545.0 1.5 TEMPERATURE DEPENEDENCE OF PEAK EMISSION WAVELENGHT 0.18 0.00 -40 1.0 Forward Voltage VF (V) 1565.0 Wavelength λ (nm) REMARK The graphs indicate nominal charachteristics. 100 NX8503BG-CC, NX8503CG-CC OUTLINE DIMENSIONS (Units in mm) NX8503CG-CC NX8503BG-CC Optical Fiber (SMF) Length: 0.5 m With SC Connector Optical Fiber (SMF) Length: 0.5 m With SC Connector ø0.9 ø7.0±0.2 ø0.9 ø7.0±0.2 6.0 6.0 18.3±1.0 15.0 25.5±1.0 8.0±0.3 0.5±0.3 4.0±0.2 2.2 ø2.2 28.3±1.0 8.0±0.3 3.2 7.3 0.5 1.2±0.2 ø0.45±0.05 20.0±1.0 ø0.45±0.05 19.5±1.0 12.7±0.2 17.0±0.2 16.0 PIN CONNECTIONS 4 7.2±0.3 3.7±0.3 3 2 2 1 3 LD CASE 4 1 PD 7.0±0.2 CASE 3 1.0±0.1 P.C.D. = ø2.0 4–R1.25±0.2 2 PD 1 P.C.D. = ø2.0 2–ø2.5 8.5±0.2 4 LD PIN CONNECTIONS 12.0±0.15 OPTICAL FIBER CHARACTERISTICS PARAMETER SPEC Mode Field Doameter 9.5±1 Cladding Diameter 125±2 Maximum Cladding Noncircularity 2 Maximum Core/Cladding Concentricity 1.6 Outer Diameter 0.9±0.1 Cut-off Wavelength 1100 to 1270 Minimum Fiber Bending Radius 30 Fiber Length 500±50 MIN Flammability UL1581 VW-1 ORDERING INFORMATION UNIT µm µm % % mm nm mm mm PART NUMBER AVAILABLE CONNECTOR FLANGE TYPE NX8503BG-CC With SC-UPC Connector Flat Mount Flange Vertical Mount NX8503CG-CC Flange 35±2 mm 8.99±0.5 mm SC-UPC Connector Fiber Length: 500±50 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.