MITSUBISHI (OPTICAL DEVICES) FU-68SDF-22 1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) DESCRIPTION Mod ule type FU-68SDF-22 is a 1.55mm DFB-LD module with single-mode optical fiber. Th is mod ule is suitable to a light source for use in 2.5Gb/s digital optical communication systems. FEATURES Multi quantum wells (MQW) DFB Laser Diode module Input impedance is 25W Emission wavelength is in 1.55 mm band High-speed response Built-in optical isolator Built-in thermal electric cooler Butterfly package With photodiode for optical output monitor APPLICATION High speed transmission systems (~2.5Gb/s) ABSOLUTE MAXIMUM RATINGS (Tld=25° C) Parameter Laser diode Photodiode Symbol Conditions Rating Unit Optical output power from fiber end Pf CW 10 mW Forword current If CW 150 mA Reverse voltage Vrl - 2 V Reverse voltage Vrd - 20 V for monitoring Forward current I fd - 2 mA Cooler Cooler voltage Vpe - 2.4 V (Note) Cooler current Ipe - 1.2 A Operating case temperature Tc - -20~+65 °C Storage temperature Tstg - -40~+70 °C No te. Even if the thermo-electric cooler (TEC) is operated within the rate d conditions, uncontrolled current loading or operation without heatsink may easily damage the mod ule by exceeding the storage temperature range. Th ermistor resistan ce should be properly mon itored by the feedback circuit during TE C operation to avoid the catastrophic damage. . MITSUBISHI (OPTICAL DEVICES) FU-68SDF-22 1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) ELECTRICAL/OPTICAL CHARACTERISTICS Parameter Threshold current (Tld=25° C,Tc=25° C, unless otherwise noted) Symbol Ith Test Conditions Limits Unit Min. Typ. Max. CW - 12 40 mA Operating current Iop CW - 55 90 mA Operating Voltage Vop CW,If=Iop (Note 1) - 1.3 1.8 V Input impedance Zin If=Iop - 25 - W Optical output power from fib er end Pf CW,If=Iop 4 6 - mW CW,If=Iop 1530 1550 1570 nm - 0.2 - nm 33 40 - dB - - 2 dB 3.5 - - GHz - - 150 ps Light-emission central wevelength c Spectral width (-20db full width) Dl 2.5Gb/s NRZ Mark ratio 50% If_perk=Iop Extinction ratio 8% Side mode suppression ratio Sr CW,If=Iop Dispersion penalty Pp Cutoff frequency (-1,5dB optical) fc 2.48832Gbps NRZ PRBS 223 -1 If_peak=Iop Extinction ratio=10% 100km (1700ps/nm) (Note 2) If=Iop Rise and fall time (10~90%) tr,tf 2.5Gb/s NRZ Mark ratio 50% If_perk=Iop Extinction ratio 8% (Note 2) (Note 2) Relative intensity noise Nr CW,If=Iop - -155 -145 dB/Hz Tracking error (Note 3) Er Tc=-20~+65° C,APC,ATC - 0.3 - dB Differential efficiency h 0.09 0.15 0.35 mW/ mA Monitor current Imon - 0.1 - - mA Dark current (PD) Id CW,If=Iop,Vrd=5V Vrd=5V - 0.1 1 mA Capacitance (PD) Ct Vrd=5V,f=1MHz - 10 - pF Note 1. If: LD forward current 2. Optical return loss of the connectors should be greater than 40dB in order to get the specified performance. 3.Er=MAX|10 ´log(Pf(Tc)/Pf(25° C))| MITSUBISHI (OPTICAL DEVICES) FU-68SDF-22 1.55mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) THERMAL CHARACTERISTICS (Tld=25° C,Tc=-20~+65° C) Parameter Thermistor resistance B constant of thermistor resistance Symbol Rth Test Conditions Tld=25° C B - Limits Unit Min. Typ. Max. 9.5 10 10.5 KW - 3950 - K Cooling capacity DT Tc=65° C 40 - - °C Cooler current Ipe D T=40° C - 0.6 1 A Cooler Voltage Vpe D T=40° C - 1.2 2 V OPTICAL FIBER SPECIFICATION Parameter Type Limits Unit SM - Mode filed dia. 9.5 ±1 mm Cladding dia. 125±2 mm 0.9 typ. mm Jacket dia. MITSUBISHI (OPTICAL DEVICES) FU-68SDF-22 1.55 mm DFB-LD MODULE WITH SINGLEMODE FIBER PIGTAIL (BIAS CIRCUIT INTEGRATED, DIGITAL APPLICATION) OUTLINE DIAGRAM (Unit : mm) FU-68SDF-22