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| MITSUBISHI (OPTICAL DEVICES) FU-445SDF-WM1 1.3 mm UNCOOLED DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) DESCRIPTION Mod ule type FU-445SDF-WM1 is a 1 .3mm Uncooled DFB-LD module with single-mode optical fiber. Th is module is suitable to a light source for use in 2.5Gb/s digital optical communication systems. FEATURES l/4 shifted Multi quantum wells (MQW) DFB Laser Diode module Input impedance is 25W Emission wavelength is in 1.3mm band High-speed response Built-in optical isolator Built-in thermistor and bias T 8-pin Mini-DIL package with Gull wing leads With photodiode for optical output monitor APPLICATION High speed transmission systems (~2.5Gb/s) ABSOLUTE MAXIMUM RATINGS (Tc=25C) Parameter Laser diode Optical output power Forward current Reverse voltage Photodiode Reverse voltage Forward current Operating case temperature Storage temperature Symbol Pf If Vrl Vrd Ifd Tc Tstg Conditions CW CW Rating 6 100 2 20 2 -10 ~ +85 -40 ~ +85 Unit mW mA V V mA C C MITSUBISHI (OPTICAL DEVICES) FU-445SDF-WM1 1.3 mm UNCOOLED DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) ELECTRICAL/OPTICAL CHARACTERISTICS (Tc=-10~85C unless otherwise noted) Parameter Threshold current Optical output power at threshold current Operating current Operating voltage Input impedance Optical output power from fiber end Light-emission central wavelength Wavelength temperature coefficient Spectral width Side mode suppression ratio Cutoff frequency (-1.5dB optical) Rise and fall time (10~90%) Dispersion penalty Relative intensity noise Tracking error (Note 2) Differential efficiency Monitor current Optical isolation Dark current (PD) Symbol Ith Pth Iop Vop Zin Pf lc lct Dl Sr fc tr, tf Pp Nr Er h Imon Iso Id Test Conditions CW,Tc=25C CW CW, Ibias=Ith CW, Pf=2mW,Tc=25C CW, Pf=2mW,Tc=85C CW, Pf=2mW CW,nominal CW, Pf=1mW (Note 1), -20dB (Note 1) Pf=1mW (Note 1) (Note 1), -300ps/nm disp. CW, Pf=1mW, f=1GHz CW,APC(Imon=Const.) CW, Tc=25C CW CW, Pf=1mW, Vrd=5V Vrd=5V Min. 2 1290 30 3.5 0.06 0.04 0.05 20 Limits Typ. 10 40 60 1.2 25 2 1310 0.09 45 125 -150 0.5 Unit Max. 25 40 50 70 90 1.5 1330 0.1 0.8 150 0.5 -140 1.25 0.2 0.27 1 0.1 V W mW nm nm/C nm dB GHz psec dB dB/Hz dB mW/ mA mA mW mA mA dB mA Capacitance (PD) Ct Vrd=5V, f=1MHz 10 pF Thermistor resistance Rth 9.5 10 10.5 Tc=25C kW B constant of Rth B 3950 K Note 1) 2.48832Gb/s NRZ, 2 23 -1, Pf_ave=1mW, Ibias=Ith, optical return loss of the connectors should be greater than 40dB in order to ensure the specified performance. Note 2) Er=max|10log(Pf / Pf@25C)| FIBER PIGTAIL SPECIFICATIONS Parameter Type Mode field diameter Cladding diameter Secondary coating outer diameter Connector Optical return loss of connector Limits SM 9.5 1 125 2 0.9 0.1 SC/PC 40 (min) Unit mm mm mm dB MITSUBISHI (OPTICAL DEVICES) FU-445SDF-WM1 1.3 mm UNCOOLED DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) OUTLINE DIAGRAM (Unit : mm) 34.5 FU-445SDF-WM1 |
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