Finisar Product Specification 2.5Gbps, 850nm VCSEL, TO-46 Package HFE4091-341 PRODUCT FEATURES * 850nm multi-mode oxide isolated VCSEL * Capable of modulation operation from DC to 2.5Gbps * TO-46 flat window metal can component * Designed for drive currents between 315mA average * Packaged with a back monitor * Attenuated window can * Unattenuated versions also available These products are high-performance 850nm VCSELs (Vertical Cavity Surface-Emitting Lasers) designed for high-speed data communications and packaged 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 the VCSEL. These combined features simplify design for high data rate communication and eye safety. These products are high radiance VCSELs 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. These products are designed to be used with inexpensive silicon or gallium arsenide detectors, but excellent performance can also be achieved with some indium gallium arsenide detectors (see HFD3081-108 and HFD3081-203 product data sheets). The low drive current requirement makes direct drive from PECL (Positive Emitter Coupled Logic) or ECL (Emitter Coupled Logic) gates possible and eases driver design. These are designed to interface with 50/125 and 62.5/125mm multi-mode fiber. They produce circularly symmetric, non-astigmatic, narrow divergence beams that, with appropriate lensing, fiber couple all of the emitter power PRODUCT SELECTION Part Number HFE4091-341 Description Attenuated TO-46 component, VCSEL with Back Monitor Photodiode, Cathode of VCSEL common with Photodiode Anode Confidential and Proprietary (c) 2013 Finisar Corporation. All rights reserved Rev. A1 Page 1 HFE4091-341 Product Specification - Aug 2014 Finisar I. Absolute Maximum Ratings Parameter Rating Storage Temperature -40 to +100C Case Operating Temperature -40* to +85C Lead Solder Temperature 260C, 10 sec. Laser continuous Forward Current 12mA Laser peak forward current with pulse width less than 1ms 18mA Laser Reverse voltage 5V ESD Exposure (Human Body Model) 225V 1 Notice 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. Notice The inherent design of this component causes it to be sensitive to electrostatic discharge (ESD). To prevent ESD-induced damage and/or degradation to equipment, take normal ESD precautions when handling this product Confidential and Proprietary (c) 2013 Finisar Corporation. All rights reserved Rev. A1 Page 2 HFE4091-341 II. Finisar Product Specification - Aug 2014 Electro-Optical Characteristics (TOP = 25 C unless otherwise stated) VCSEL Parameters Optical Power Output Threshold Current Threshold Current maximum deviation from 25oC value Temperature at minimum threshold current Slope Efficiency Test Condition IF = 7mA P Temperature Variation Spectral Bandwidth, RMS Laser Forward Voltage Rollover Rise and Fall Times Relative Intensity Noise Series Resistance Series Resistance Temperature Coefficient Monitor current Temperature Variation Monitor Current Tracking Dark Current PD Capacitance 0.5 -0.5 Typ. 0.625 1.8 Max. Notes 2 2.5 1 1.7 Units mW mA mA mA 2.5 mA 3 ITH ITH TA = -40oC to 25oC ITH TO -20 50 0.07 TA = 25oC o TA = 85oC TA = 0oC to 70oC /T 0.06 P 830 IF = 7mA, TA = 0oC to 85oC IF = 7mA, TA = -40oC to 85oC IF = 7mA IF = 7mA Pavg = 0.625mW, Extinction Ratio = 10 1 GHz BW, IF = 7mA IF = 7mA , TA = 25oC VF Pmax tr tf RIN RS RS TA = 85oC RS IF = 7mA, TA = 0oC to 70oC Test Condition Po = 0.625mW, TA = 25oC Po = 0.625mW, TA = 40oC Po = 0.625mW, TA = +85oC Po = 0.625mW, 0oC to 70oC Po = 0mW, VR = 3V VR = 0V, Freq = 1MHz VR = 3V, Freq = 1MHz o 850 3 0.3 mW/mA 4 0.235 mW/mA mW/mA ppm/ oC 860 nm/oC 0.65 nm 1.8 2.0 -130 35 130 150 -122 50 V mW ps 1.25 20 -3000 /F 15 Symbol IPD IPD Min. 0.100 TBD IPD TBD 30 0.45 Typ. IPD/T TBD Deltrk ID C TBD 75 40 Confidential and Proprietary (c) 2013 Finisar Corporation. All rights reserved 6 7 dB/Hz 60 Rs/T 5 nm 0.06 25 3 3 C -6000 P/T TA = -40oC Beam Divergence Beam Divergence Current Variation Photodiode Parameters Monitor Current Min. TA = 0oC to 70oC TA = 25oC to 85oC TA = -40 C Slope Efficiency Temperature variation Peak Wavelength Symbol PO ITH ppm/ oC 8 Degrees 9 Degree/mA Max. 0.600 TBD Units mA Notes 10 10 TBD mA 10 %/ oC 10 10, 11 20 100 55 nA pF Rev. A1 Page 3 HFE4091-341 Product Specification - Aug 2014 Finisar Notes: 1. Reliability is a function of temperature, see www.finisar.com for details. 2. For the purpose of these tests, IF is DC current. 3. Threshold current varies as (TA - TO)2. It may either increase or decrease with temperature, depending upon relationship of TA to TO. The magnitude of the change is proportional to the threshold at TO. 4. Slope efficiency is defined as PO/IF. 5. To compute the value of Slope Efficiency at a temperature T, use the following equation: (T) (25oC)*[1+(/ T)*(T-25)] 6. Rollover is the power at which a further current increase does not result in a power increase. 7. Rise and fall times specifications are the 20% - 80%. Most of the devices will measure <135ps fall time. Rise and fall times are sensitive to drive electronics. 8. To compute the value of Series Resistance at a temperature T, use the following equation: RS(T) RS(25oC)*[1+(RS/ T)*(T-25)] 9. Beam divergence is defined as the total included angle between the 1/e2 intensity points. 10. These specifications are for the TO-46 component alone. Reflections introduced by any subsequent higher level assembly may affect these values. 11. Monitor current tracking is defined as follows: Deltrk = III. IPD(PO = 0.75mW) / 0.75mW IPD(PO = 0.45mW) / 0.45mW Typical Performance Curves Emitted Power vs. Current: Power varies approximately Threshold Current vs. Temperature: Threshold linearly with current above threshold. current varies parabolically with temperature; thus it can be nearly constant for a limited temperature range. Typical operating current / power Threshold Current Pmax I T H I M IN [1 . 1 x 1 0 - 4 (T -T M IN ) 2 + 1 ] T M IN , I M IN Ith Current Confidential and Proprietary (c) 2013 Finisar Corporation. All rights reserved T e m p e r a tu r e Rev. A1 Page 4 HFE4091-341 IV. Finisar Product Specification - Aug 2014 Environmental Specifications Parameter Case Operating Temperature Storage Temperature V. Symbol Top Tsto Min -40 -40 Typ Max 100 85 Units C C Ref. Regulatory Compliance Feature Agency Standard Laser Eye Safety FDA/CDRH CDRH 21 CFR 1040 and Laser Notice 50 Certificate Number 9521487 Copies of the referenced certificates are available at Finisar Corporation upon request. VI. Mechanical Specifications PIN 1 2 3 Description ALD KLD, APD KPD (dimensions are in inches) Confidential and Proprietary (c) 2013 Finisar Corporation. All rights reserved Rev. A1 Page 5 HFE4091-341 VII. Product Specification - Aug 2014 Finisar Revision History Revision Date B00 8/14/2014 Description * Changed to Latest Finisar format. VIII. For More Information Finisar Corporation 1389 Moffett Park Drive Sunnyvale, CA 94089-1133 Tel. 1-408-548-1000 Fax 1-408-541-6138 sales@finisar.com www.finisar.com Confidential and Proprietary (c) 2013 Finisar Corporation. All rights reserved Rev. A1 Page 6