2B455

PRODUCT INFORMATION 840nm 2B455 VCSEL Laser Diode Datacom This Vertical Cavity SurfaceEmitting Laser is designed for Fibre Channel, Gigabit Ethernet, ATM and general applications. It incorporates a photodiode to monitor the optical power and allow for feedback control. Optical and Electrical Characteristics PARAMETER SYMBOL MIN. TYP . MAX. UNIT (25° C Case Temperature) TEST CONDITION Fiber-Coupled Power Optical Power Slope Efficiency (dPo/dIF) Pfiber Po 1.3 0.9 1.7 200 15 2 830 840 0.5 1.9 3.5 20 30 30 -130 860 1 2.2 6 3.0 mW mW IF =12mA IF =12mA (Note 1) ␩ ⌰ fc ␭p mW/A IF =12mA deg GHz nm nm V mA ␮A nA IF =12mA, VR>1V VR=5V Full Width at 1/e2 IF =12mA IF =12mA IF =12mA IF =12mA Beam Divergence Bandwidth (3dBel ) Peak Wavelength Spectral Width (FWHM) Forward Voltage (Fig.5) Threshold Current Monitor Current Monitor Dark Current Relative Intensity Noise ⌬␭ VF Ith Im Id RIN 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. Ø4.7 Ø2.55 Absolute Maximum Ratings PARAMETER SYMBOL LIMIT 3.575 Storage Temperature Operating Temperature (derating: Fig.4) 14 Tstg Top Ptot IF IFRM VR Tsld -55 to +125Њ C 0 to +70Њ C 35 mW 15 mA 25 mA 1.5 V 260ЊC Electrical Power Dissipation (derating: Fig.4) 0.4 VCSEL Cathode MONITOR Anode Continuous Forward Current (fр10 kHz) Peak Forward Current (duty cycle р50%, fу1 MHz) All dimensions in mm VCSEL Anode MONITOR Ca...