f i n i s a r confidential and proprietary ? 2012 finisar corpora tion. all rights reserved rev. a1 page 1 product specification 1.25gbps vcsel component, to-46 HFE4083-322 product 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 ? un-attenuated window ? packaged with a photo-detector the HFE4083-322 is a high-performance 850 nm vcsel (vertical cavity surface- emitting laser) packaged for high-speed data commun ications. 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 app ropriate feedback control circuitry to set a maximum power level for each vcsel. these combined features simplify design for high data rate communication and eye safety. th e HFE4083-322 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 th e current increases above threshold, the light intensity increases proportionally. the h fe4083-322 is designed to be used with inexpensive silicon or gallium arsenide detectors ( see hfd3081-108), but excellent performance can also be achieved with some indium g allium arsenide detectors. the low drive current requirement makes direct driv e from pecl (positive emitter coupled logic) or eml (emitter coupled logic) gates possible and eases driver design. the HFE4083-322 is designed to interface with 50/12 5 and 62.5/125 um multimode fiber. they produce circularly symmetric, non-astig matic, narrow divergence beams that, with appropriate lensing, fiber couple all of the e mitter power. product selection part number description HFE4083-322 vcsel with back monitor photodiode - vc sel anode common
HFE4083-322 product specification ? april 2013 f i n i s a r confidential and proprietary ? 2012 finisar corpora tion. all rights reserved rev. a1 page 2 i. absolute maximum ratings parameter rating storage temperature -40 to +85 c case operating temperature 0 to +70 c lead solder temperature 260 c, 10 sec. laser continuous average current 15ma laser peak forward current with pulse width less than 1us 20ma laser reverse voltage 5v esd exposure (human body model) 225v 1 1 heel and wrist straps must be used on a properly gr ounded workstation 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 thes e 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-indu ced damage and/or degradation to equipment, take normal esd pr ecautions when handling this product
HFE4083-322 product specification ? april 2013 f i n i s a r confidential and proprietary ? 2012 finisar corpora tion. all rights reserved rev. a1 page 3 ii. electro-optical characteristics notes: 1. reliability is a function of temperature, see www.finisar.com for details. 2. operating power is set by the peak operating curren t i peak =i bias +i modulation . 3. for the purpose of these tests, i f is dc current. 4. threshold current varies as (t a ? t o ) 2 . it may either increase or decrease with temperatu re, depending upon relationship of t a to t o . the magnitude of the change is proportional to th e threshold at t o . 5. slope efficiency is defined as ? p o / ? i f . 6. rise and fall times specifications are the 20% - 80 %. most of the devices will measure <200ps fall time. rise and fall times are sensitive to drive el ectronics. 7. beam divergence is defined as the total included an gle between the 1/e 2 intensity points. 8. to safeguard the vcsel from current spike damage, s hort the vcsel anode and cathode to each other during photodiode bvr verification testing. a dditionally to safeguard the pin photodiode, limit the photodiode reverse voltage in accordance with the absolute maximum rating. vcsel parameters test condition symbol min. typ. max. units notes peak operating current adjustable to establish operating power i peak 12 20 ma 2 optical power output i f =12ma po 0.9 1.8 3.6 mw 2,3 threshold current i th 1.5 3.5 6 ma threshold current temperature variation t a = 0 o c to 70 o c ? i th -1.5 1.5 ma 4 slope efficiency po =1.3mw 0.1 0.25 0.4 mw/ma 5 slope efficiency temperature variation t a = 0 o c to 70 o c ? / ? t -0.5 %/ o c peak wavelength i f =12ma p 830 850 860 nm p temperature variation i f =12ma ? p/ ? t 0.06 nm/ o c spectral bandwidth, rms i f =12ma ? 0.85 nm laser forward voltage i f =12 ma v f 1.6 1.8 2.2 v laser reverse voltage i r =10 a bvr ld 5 10 v rise and fall times prebias above threshold, 20%-80% t r t f 150 200 300 300 ps 6 relative intensity noise 1 ghz bw, i f =12ma rin -128 -122 db/hz series resistance i f =12 ma r s 18 25 40 ohms beam divergence i f =12 ma 5 15 20 degrees 7 photodiode parameters test condition symbol min. typ. max. units notes monitor current po =1.3mw i pd 0.075 0.250 ma monitor current temperature variation po =1.3mw ? i pd / ? t 0.2 %/ o c dark current po =0mw, v r =3v i d 20 na pd reverse voltage po =0mw, i r =10 a bvr pd 30 115 v 8 pd capacitance v r =0v, freq=1mhz v r =3v, freq=1mhz c 75 40 100 55 pf
HFE4083-322 product specification ? april 2013 f i n i s a r confidential and proprietary ? 2012 finisar corpora tion. all rights reserved rev. a1 page 4 iii. typical performance curves emitted power vs. current: power varies approximately linearly with current above threshold. threshold current vs. temperature: threshold current varies parabolically with temperature; thus it can be nearly constant for a limited temperature range. t e m p e r a tu r e threshold current t m in , i m in i t h i m in [1 . 1 1 0 - 4 (t -t m in ) 2 + 1 ] iv. environmental specifications parameter symbol min typ max units ref. case operating temperature t op 0 70 c storage temperature t sto -40 85 c v. regulatory compliance feature agency standard certificate number laser eye safety fda/cdrh cdrh 21 cfr 1040 and laser notice 50 95214 87 copies of the referenced certificates are available at finisar corporation upon request. current pmax typical operating current / power i th
HFE4083-322 product specification ? april 2013 f i n i s a r confidential and proprietary ? 2012 finisar corpora tion. all rights reserved rev. a1 page 5 vi. mechanical specifications pinout definitions a ld vcsel anode a pd monitor photodiode anode k ld vcsel cathode k pd monitor photodiode cathode dimension a = 0.078 0.004 (dimensions are in inches) pin description 1 k ld 2 k pd , a ld 3 a pd 0.400 min
HFE4083-322 product specification ? april 2013 f i n i s a r confidential and proprietary ? 2012 finisar corpora tion. all rights reserved rev. a1 page 6 vii. revision history revision date description a1 4/28/2013 ? document created. 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
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