Fiber Optic LAN Components High Speed VCSEL 1.25Gbps FEATURES * Designed for drive currents between 5 and 15 mA * Optimized for low dependence of electrical properties over temperature * High speed 1 GHz * Two different laser/ photodiode polarities * Attenuating coating * Packaged with a photodetector LASER RADIATION AVOID EXPOSURE TO BEAM CLASS 3B LASER PRODUCT HFE408x-321 The HFE408x-321 is a high-performance 850 nm VCSEL (Vertical Cavity Surface-Emitting Laser) packaged for high-speed data communications. This product combines all the performance advantages of the VCSEL with a custom designed power monitor diode. The power monitor diode can be used with appropriate feedback control circuitry to set a maximum power level for each VCSEL. In addition, built-in power attenuation reduces the effective slope efficiency. These combined features simplify design for high data rate communication and eye safety. The HFE408x-321 is a high radiance VCSEL designed to convert electrical current into optical power that can be used in fiber optic communications and other applications. As the current varies above threshold, the light intensity increases proportionally. The HFE408x-321 is designed to be used with inexpensive silicon or gallium arsenide detectors, but excellent performance can also be achieved with some indium gallium arsenide detectors. The low drive current requirement makes direct drive from PECL (Positive Emitter Coupled Logic) or EML (Emitter Coupled Logic) gates possible and eases driver design. The HFE408x-321 is designed to interface with 50/125 and 62.5/125 m multimode fiber. They product circularly symmetric, non-astigmatic, narrow divergence beams that, with appropriate lensing, fiber couple all of the emitter power. Honeywell www.honeywell.com/sensing/VCSEL HFE408x-321 Fiber Optic LAN Components High Speed VCSEL 1.25Gbps ABSOLUTE MAXIMUM RATINGS NOTICE Parameter Storage Temperature Rating -40 to +125C Operating Temperature 0 to +70C Lead Solder Temperature 260C, 10 sec. 5 mW 5V Continuous Optical Output Power (Any Current) Laser Diode Reverse Voltage (IR=10 A) Laser Continuous Forward Current, Heat-Sinked PIN Photodiode Forward Current Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operations section for extended periods of time may affect reliability. 15 mA 10 mA ELECTRO-OPTICAL CHARACTERISTICS (TA=25 oC unless otherwise stated) VCSEL Parameters Test Condition Peak Operating Current Adjustable to establish operating power IF=12mA Ipeak TA = 0oC to 70oC ITH Po =0.5mW TA = 0oC to 70oC Optical Power Output Threshold Current Threshold Current Temperature Variation Slope Efficiency Slope Efficiency Temperature variation Peak Wavelength P Temperature Variation Spectral Bandwidth, RMS Laser Forward Voltage Laser Reverse Voltage IF=12mA IF=12mA IF=12mA IF=12 mA Rise and Fall Times IR=10 A Prebias Above Threshold, 20%-80% Relative Intensity Noise Series Resistance Beam Divergence 1 GHz BW, IF=12mA IF=12 mA IF=12 mA Photodiode Parameters Test Condition Monitor Current Monitor current Temperature Variation Dark Current PD Reverse Voltage Po =0.5mW Po =0.5mW PD Capacitance Po =0mW, VR=3V Po =0mW, IR=10 A VR=0V, Freq=1MHz VR=3V, Freq=1MHz 2 Honeywell * www.honeywell.com/sensing/VCSEL Symbol Typ. Max. Units Notes 12 20 mA 1 0.3 1.5 -1.5 0.6 3.5 1.2 6 1.5 mW mA mA 1 /T 0.04 0.1 -0.5 0.16 mW/mA %/ oC 3 P 830 850 860 Po ITH Min. P/T VF BVRLD 2 nm nm/oC 0.06 0.85 2.2 nm V V 1.6 5 1.8 10 tr tf RIN RS 300 300 -122 40 20 ps 4 18 5 150 200 -128 25 15 dB/Hz Ohms Degrees 5 Symbol Min. Typ. Max. Units Notes IPD 0.075 0.250 mA %/ oC 20 nA V IPD/T ID BVRPD C 0.2 30 115 75 40 100 55 6 pF For application help: call 1-800-537-6945 HFE408x-321 Fiber Optic Components High Speed VCSEL 1.25Gbps Notes: 1. Operating power is set by the peak operating current IPEAK=IBIAS+IMODULATION. 2. Operation at temperatures outside the specified range may result in the threshold current exceeding the maximums defined in the electrooptical characteristics table. 3. Slope efficiency is defined as Po/IF at a total power output of 0.5 mW. Slope efficiency is intentionally lowered to the values shown by optical attenuation. 4. Rise and fall times are sensitive to drive electronics, 200ps rise and fall times are achievable with Honeywell VCSELs. 5. Beam divergence is defined as the total included angle between the 1/e2 intensity points. 6. To safeguard the VCSEL from current spike damage, short the VCSEL anode and cathode to each other during photodiode BVR verification testing. Additionally to safeguard the PIN photodiode, limit the photodiode reverse voltage in accordance with the absolute maximum rating. TYPICAL PERFORMANCE CURVES Typica l I O P , P O P Threshold Current vs. Temperature: Threshold current varies parabolically with temperature; thus it can be nearly constant for a limited temperature range. Threshold Current Emitted Power Emitted Power vs. Current: Power varies approximately linearly with current above threshold. I TH = I M IN [1.1x 10 -4 (T-T M IN )2 + 1] T M IN , I M IN ITH Te m pe ra ture Curre nt Emission Intensity vs. Wavelength: Typical 10 mA spectrum comprises multiple lines corresponding to multiple transverse modes. NOTICE The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESDinduced damage and/or degradation to equipment, take normal ESD precautions when handling this product. Emission Intensity DANGER FW HM of e nve lope typica lly < 0.5 nm The VCSEL is a class IIIb laser and should be treated as a potential eye hazard. Due to the size of the component, the applicable warning logotype, aperture label, and certification/ identification label cannot be placed on the component itself. These labels can be found on the individual envelope in which the VCSEL unit is packaged, or attached to the shipping package. W a ve le ngth For application help: call 1-800-537-6945 www.honeywell.com/sensingVCSEL Honeywell * 3 HFE408x-321 Fiber Optic LAN Components High Speed VCSEL 1.25Gbps VCSEL ORDER GUIDE Catalog Listing HFE4081-321 HFE4082-321 Description Attenuated VCSEL with Back Monitor Photodiode VCSEL Cathode Common Attenuated VCSEL with Back Monitor Photodiode VCSEL Anode Common MOUNTING DIMENSIONS (for reference only): in./(mm) While we provide application assistance, personally and through our literature, it is up to the customer to determine the suitability of the product in the application. Specifications may change at any time without notice. The information we supply is believed to be accurate and reliable as of this printing. However, we assume no responsibility for its use. SALES AND SERVICE Honeywell Sensing and Control serves its customers through a worldwide network of sales offices and distributors. For application assistance, current specifications, pricing or name of the nearest Authorized Distributor, contact a nearby sales office or call: TELEPHONE 1-800-367-6786 (USA) 1-800-737-3360 (Canada) +49 (0) 89 35813310 (Germany) +65-580-3312 (Singapore) +44 (0) 118 981 9511 (UK) DIMENSION A = 0.0780.004 PINOUT HFE4082-321 Number Function 1 KLD 2 KPD, ALD 3 APD HFE4081-321 Number Function 1 ALD 2 KLD, APD 3 KPD FAX 1-972-470-4326 (Customer Response Center) 1-972-470-4549 (Fax on demand) +49 (0) 89 3599971 (Germany) +65 445 3033 (Singapore) +44 (0) 118 981 7513 (UK) PINOUT DEFINITIONS ALD KLD VCSEL Anode VCSEL Cathode APD KPD Monitor Photodiode Anode Monitor Photodiode Cathode INTERNET http://www.honeywell.com/sensing/VCSEL info.sc@honeywell.com WARRANTY/REMEDY Honeywell warrants goods of its manufacture as being free of defective materials and faulty workmanship. Commencing with the date of shipment, Honeywell's warranty runs for 18 months. If warranted goods are returned to Honeywell during that period of coverage, Honeywell will repair or replace without charge those items it finds defective. The foregoing is Buyer's sole remedy and is in lieu of all other warranties, expressed or implied, including those of merchantability and fitness for a particular purpose. 02/19/02 Honeywell Inc. 11 West Spring Street Freeport, Illinois 61032 Printed with Soy Ink on 50% Recycled Paper 006694-1-EN IL50 GLO 797 Printed in USA Honeywell Inc. Optoelectronics Facility 830 East Arapaho Road Richardson, Texas 75081 Honeywell Control Systems Ltd. Zodiac House Calleva Park Aldermaston, Berkshire RG7 8HW England Helping You Control Your World