LASER DIODE - NEC
Description
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: λP = 1550 nm • OPTICAL OUTPUT POWER: Pf = 2.
0 mW • LOW THRESHOLD CURRENT: 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
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 +85°C.
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.
ELECTRO-OPTICAL CHARACTERISTICS (TC = -10 to +85°C, 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 = 25°C Pf = 2.
0 mW TC = +25°C UNITS mW V mA mA µW 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
ηd
∆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, 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 λp ∆λ/∆T ∆λ SMSR fc tr tf Im ID
% nm n...
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