E2V0034-37-X1 ¡ electronic components OL4492L, OL5492L/A, OL5492L/B LASER DIODES OL4492L, OL5492L/A, OL5492L/B 1.48, 1.51, 1.52 mm Coaxial DFB Laser Module GENERAL DESCRIPTION The OL4492L, OL5492L/A, and OL5492L/B are MQW-DFB laser diode coaxial modules with optical isolator and single-mode fiber pigtails. These modules are optimal light sources for WDM supervisory channel in SDH system with optical in-line amplifier. FEATURES • • • • • • Single-mode fiber output: Pf=2 mW Side mode suppression ratio: 30dB Includes monitor PD for power control Built-in optical isolator Wide operation temperature range Multi-quantum-well (MQW) structure APPLICATIONS • WDM supervisory channel in SDH system with optical in-line amplifier 1/6 LASER DIODES OL4492L, OL5492L/A, OL5492L/B PACKAGE DIMENSIONS (Unit: mm) • OL4492L, OL5492L/A, OL5492L/B 26.6 f6.8 13 4 2–f2.2 4–f0.45 7 12.7 17 e f4 6.4 r CASE LD w q 1 q w 2 r e PD 2/6 LASER DIODES OL4492L, OL5492L/A, OL5492L/B ABSOLUTE MAXIMUM RATINGS Parameter Symbol Ratings Unit Pf 3 mW LD Forward Current IF (LD) 150 mA PD Reverse Voltage VR (PD) 20 V PD Forward Current IF (PD) Fiber Output Test Conditions Ta=25°C 10 mA Operating Temperature Topr — 0 to +65 °C Storage Temperature Tstg — –40 to +85 °C OPTICAL AND ELECTRICAL CHARACTERISTICS (Ta=25°C) Parameter Symbol Test Conditions Min. Typ. Max. Unit Threshold Current Ith — — — 40 mA Fiber Output Power Operating current Pf CW 2 — — mW Iop Pf=2 mW — — 120 mA SMSR Pf=2 mW 30 — — dB Side Mode Suppresion Ratio Rise Time tr Ibias=Ith — — 0.5 ns Fall Time tf Pf=2 mW, 10% to 90% — — 0.5 ns Pf=2 mW — 1.1 1.5 V Forward Voltage VF PD Dark Current IDARK VR(PD)=5 V — 0.5 20 nA Monitor Current Im VR (PD)=5 V, Pf=2 mW 50 — — mA Peak Wavelength (Ta=0 to 65°C) Model Symbol Test Conditions lp Pf=2mW OL4492L OL5492L/A OL5492L/B Min. Max. 1470 1490 1500 1520 1510 1530 Unit nm 3/6 LASER DIODES OL4492L, OL5492L/A, OL5492L/B TYPICAL CHARACTERISTICS • OL4492L Fiber Output Power vs. Forward Current (Ta=25°C) 3.5 Fiber Output Power Pf (mW) 2.8 (Pf–Im) (Pf–IF) 2.1 1.4 0.7 0 0 20 0 40 60 80 Forward Current IF (mA) 100 0.4 0.8 1.2 1.6 Monitor Current Im (mA) 2 • OL4492L Oscillation Spectrum (Ta=25°C) Relative Intensity (dB) 5 –15 –35 –55 –75 1469.1 1479.1 1489.1 Wavelength (nm) 4/6 LASER DIODES OL4492L, OL5492L/A, OL5492L/B TYPICAL CHARACTERISTICS (Continued) • OL5492L/A Fiber Output Power vs. Forward Current (Ta=25°C) 3 (Pf–IF) Fiber Output Power Pf (mW) 2.4 (Pf–Im) 1.8 1.2 0.6 0 0 20 0 40 60 80 Forward Current IF (mA) 100 0.4 0.8 1.2 1.6 Monitor Current Im (mA) 2 • OL5492L/A Oscillation Spectrum (Ta=25°C) Relative Intensity (dB) 5 –15 –35 –55 –75 1499.9 1509.9 1519.9 Wavelength (nm) 5/6 LASER DIODES OL4492L, OL5492L/A, OL5492L/B TYPICAL CHARACTERISTICS (Continued) • OL5492L/B Fiber Output Power vs. Forward Current (Ta=25°C) 3 Fiber Output Power Pf (mW) 2.4 (Pf–Im) (Pf–IF) 1.8 1.2 0.6 0 0 20 0 40 60 80 Forward Current IF (mA) 0.4 0.8 1.2 1.6 Monitor Current Im (mA) 100 2 • OL5492L/B Oscillation Spectrum (Ta=25°C) Relative Intensity (dB) 5 –15 –35 –55 –75 1513.9 1523.9 1533.9 Wavelength (nm) 6/6