PRODUCT INFORMATION 840nm 1A440 Datacom, General Purpose VCSEL Laser Diode This Vertical Cavity SurfaceEmitting Laser is designed for Fibre Channel, Gigabit Ethernet, ATM and general applications. It operates in multiple transverse and single longitudinal mode, ensuring stable coupling of power and low noise. Optical and Electrical Characteristics PARAMETER Fiber-Coupled Power SYMBOL MIN. TYP. MAX. UNIT TEST CONDITION mW IF =12mA mW IF =12mA Optical Power Pfiber Po Slope Efficiency h 200 Beam Divergence Q 15 deg Full Width at 1/e2 Bandwidth fc 2 GHz IF =12mA (dPo/dIF) (3dBel ) Peak Wavelength lp Spectral Width (FWHM) 1.3 (25° C Case Temperature) 0.9 3.0 mW/A IF =12mA 840 860 nm IF =12mA Dl 0.5 1 nm IF =12mA Forward Voltage (Fig.5) VF 1.9 2.2 V IF =12mA Threshold Current Ith 3.5 6 mA RIN -130 Relative Intensity Noise 830 1.7 (Note 1) dB/Hz IF =12mA, f=1 GHz Note 1: Fiber: 50/125 Graded Index, NA=0.2 or 62.5/125 Graded Index, NA=0.275. An external glass ball lens with 2 mm diameter is required. Absolute Maximum Ratings PARAMETER Ø4.7 Ø2.5 3.7 SYMBOL LIMIT Storage Temperature Tstg -55 to +1258C Operating Temperature (derating: Fig.4) Top 0 to +708C Electrical Power Dissipation (derating: Fig.4) Ptot 35 mW IF 15 mA IFRM 25 mA Reverse Voltage VR 1.5 V Soldering Temperature (2mm from the case for 10 sec) Tsld 2608C 14 Continuous Forward Current (f<10 kHz) 0.4 Peak Forward Current (duty cycle<50%, f>1 MHz) CATHODE CASE 2.5 5.4 All dimensions in mm ANODE Thermal Characteristics BOTTOM VIEW PARAMETER The chip is isolated from the case. TO-46 Package With Flat Window WARNING: Laser Radiation, avoid exposure to beam. Class 3B laser product, potential eye hazard. Warning labels in each box. SYMBOL MIN. TYP. MAX. UNIT Thermal Resistance - Infinite Heat Sink Rthjc 400 8C/W Thermal Resistance - No Heat Sink Rthja 700 8C/W dl /dTj 0.06 nm/8C Optical Power - Variation 0 to 708C DP 60.7 dB Threshold Current - Variation 0 to 708C DIth 60.6 mA Temp. Coefficient -Wavelength 13430.11 1999-04-01 Europe: Tel (46) 8 58 02 45 00 Fax (46) 8 58 02 01 10 Tel (44) 1291 436180 Fax (44) 1291 436771 America: Tel 1-800-96MITEL Fax (613) 592-6909 Asia: Tel (65) 293 5312 Fax (65) 293 8527 1A440 840nm VCSEL Laser Diode P o vs T FIGURE 1 RELATIVE THRESHOLD CURRENT 100 80 60 40 100 80 80 60 40 20 20 0 20 60 40 80 1008C If vs Vf 10 40 60 80 1008C 0 FORWARD VOLTAGE 4 3V 12 8 16 20 mA FORWARD CURRENT FIGURE 4 P o vs U % 100 40 INFINITE HEAT SINK 30 20 NO HEAT SINK 50 10 0 0 2 20 FIGURE 5 P el vs T mW MAX. ELECTRICAL POWER DISSIPATION FORWARD CURRENT 20 50 1 40 OPERATING TEMPERATURE 20 0 60 0 0 OPERATING TEMPERATURE mA FIGURE P o vs I3f % 100 RELATIVE OPTICAL POWER RELATIVE OPTICAL POWER IFIGURE th vs T 2 % 120 RELATIVE OPTICAL POWER % 120 0 20 40 60 OPERATING TEMPERATURE 80 1008C 0 -15 -10 -5 0 EMISSION ANGLE +5 +10 +158 http://www.mitelsemi.com World Headquarters - Canada Tel: +1 (613) 592 2122 Fax: +1 (613) 592 6909 North America Tel: +1 (770) 486 0194 Fax: +1 (770) 631 8213 Asia/Pacific Tel: +65 333 6193 Fax: +65 333 6192 Europe, Middle East, and Africa (EMEA) Tel: +44 (0) 1793 518528 Fax: +44 (0) 1793 518581 Information relating to products and services furnished herein by Mitel Corporation or its subsidiaries (collectively “Mitel”) is believed to be reliable. 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