MITSUBISHI (OPTICAL DEVICES) FU-641SEA-1Mx 1.55 µm EA MODULATOR INTEGRATED DFB-LD MODULE (7 PIN PACKAGE WITH K CONNECTOR, 10GB/s DIGITAL APPLICATION) DESCRIPTION Module type FU-641SEA-1Mx is a 1.55µm EA modulator integrated DFB-LD module with singlemode optical fiber. This module is suitable to a light source for use in 10Gb/s digital optical communication systems. FEATURES l EA(Electro-absorbtion) modulator integrated DFB-LD l Input impedance is 50Ω. l Emission wavelength is in 1.5 5µm band l 7 Pin package with K connector(**) l Built-in optical isolator l Built-in thermal electric cooler l With photodiode for optical output monitor **:GPO connector is availiable. APPLICATION STM-64, OC192 application ABSOLUTE MAXIMUM RATINGS Item Laser diode Optical output power Forward current Reverse voltage Modulator Reverse voltage Forward voltage Photodiode Reverse voltage Forward current Thermo-electric Current cooler(Note1) Voltage Operating case temperature Storage temperature Symbol Pf If Vrl Vrm Vfm Vrd Ifd Ipe Vpe Tc Tstg Condition CW CW CW - Rating 10 200 2 5 1 20 2 1.5 3 -20∼70 -40∼85 Unit mW mA V V V V mA A V °C °C Note) Even if the thermo-electric cooler (TEC) is operated within the rated conditions, uncontrolled current loading or operation without heatsink may easily damage the module by exceeding the storage temperature range. Thermistor resistance should be properly monitored by the feedback circuit during TEC operation to avoid the catastrophic damage. MITSUBISHI (OPTICAL DEVICES) FU-641SEA-1Mx 1.55 µm EA MODULATOR INTEGRATED DFB-LD MODULE (7 PIN PACKAGE WITH K CONNECTOR, 10GB/s DIGITAL APPLICATION) ELECTRICAL/OPTICAL CHARACTERISTICS (Tld=25°C, Tc=25°C unless otherwise noted) Parameter Symbol Test Conditions (Note2) Min. 5 50 1530 Limit Typ. 70 50 1550 Max. 30 100 1.7 1570 Unit mA mA V Ω nm Threshold current Operating current Operating voltage Input impedance Light-emission central wavelength Optical output power from fiber end Side mode suppression ratio Power penalty Extinction ratio Rise/fall time Cutoff frequency (-1.5dB optical) RF return loss Ith Iop Vop Zin λc CW,Vm=0V CW,Vm=0V CW, If=Iop, Vm=0V If=Iop (Note 3,4) Pf (Note 3,4) -2 - - dBm Sr (Note 3,4) 35 40 - dB Pp Ex tr/tf fc (Note3,4) (Note 3,4) (Note 3,4) If=Iop,Vm=-1V 10 11 S11 Relative intensity noise Tracking error Monitor current Optical isolation Dark current(PD) Capacitance(PD) RIN If=Iop,Vm=-1V, f≤5GHz If=Iop,Vm=-1V, f≤10GHz CW, If=Iop, Vm=0V,10GHz 10 5 - Note 2 Note 3 Note 4 Note 5 See Table 1 45 15 7 - -135 dB dB ps GHz dB dB dB/Hz If=Iop,Tc=-20∼70°C, Note 5 0.3 0.5 dB If=Iop,Vrd=-5V 0.1 1.5 mA Tc=-20∼70°C 23 dB Vrd=-5V 0.1 µA Vrd=-5V 10 pF Tc=25°C 35 dB :Vm is EAM bias voltage at CW condition, Vpp and Voff are EAM amplitude and EAM high level offset voltage respectively at modulation condition. : 9.95328Gbps, NRZ, PRBS2^23-1, If=Iop,Vpp=2.5V,Voff=0V to –1V :Optical return loss of the connectors should be greater than 40dB in order to get specified performance. : Er=10×log[Pf(Tc)/Pf(25°C)] Table 1 Type number FU-641SEA-1M1 FU-641SEA-1M2 FU-641SEA-1M3 FU-641SEA-1M4 Er Imon Iso Id Ct Dispersion 130ps/nm 800ps/nm 36ps/nm 400ps/nm Min. - Limit Typ. - Max. 1 2 1 1.5 Unit Comment dB dB dB dB IR-3 application IR-2 application SR-1 application SR-2 application MITSUBISHI (OPTICAL DEVICES) FU-641SEA-1Mx 1.55 µm EA MODULATOR INTEGRATED DFB-LD MODULE (7 PIN PACKAGE WITH K CONNECTOR, 10GB/s DIGITAL APPLICATION) THERMAL CHARACTERISTICS (Tld=25°C, Tc=-20~70°C) Parameter Symbol Test Conditions Thermistor resistance B constant of Rth Cooling capacity Cooler current Cooler voltage Rth B ∆T Ipe Vpe FIBER PIGTAIL SPECIFICATIONS Parameter Type Mode field diameter Cladding diameter Secondary coating outer diameter Tld=25°C If=Iop, Tc=70°C If=Iop, Tc=70°C, Tld=25°C If=Iop, Tc=70°C, Tld=25°C Min. 9.5 45 - Limits SM 9.5+/-1 125+/-2 0.9+/-0.1 DOCUMENTATION • Fiber output power vs. Laser forward current at Tld=25°C and Tc=-20,25,70°C • BER curves at 9.95328Gb//s modulation • Threshold current (Ith) • Laser forward current (Iop) • Laser forward voltage (Vop) at If=Iop, Tld=25°C • Monitor current (Imon) at If=Iop, Tld=25°C • Extinction ratio at If=Iop, Tld=25°C • Offset voltage • Thermistor resistance (Rth) at If=Iop, Tld=25°C • Cooler current (Ipe) at If=Iop, Tld=25°C • Cooler voltage (Vpe) at If=Iop, Tld=25°C Limits Typ. 10 3950 0.6 1.2 Unit µm µm mm Unit Max. 10.5 1.2 2.5 kΩ K °C A V MITSUBISHI (OPTICAL DEVICES) FU-641SEA-1Mx 1.55 µm EA MODULATOR INTEGRATED DFB-LD MODULE (7 PIN PACKAGE WITH K CONNECTOR, 10GB/s DIGITAL APPLICATION) OUTLINE DIAGRAM (Unit : mm) FU-641SEA-1Mx Pin 1 2 3 4 5 6 7 FUNCTION THERMISTOR THERMISTOR LD DC BIAS(ANODE) PD ANODE PD CATHODE COOLER ANODE COOLER CATHODE Pin7 Pin1 Thermistor Thermo cooler PD EA/LD K connector