features: ? high output power ? low modulation voltage ? long haul performance with negligible dispersion penalty ? single 50 low voltage drive modulation input ? integral thermo-electric cooler with precision ntc temperature control ? hermetically sealed 7-pin butterfly package with optical isolator ? high extinction ratio >10db ? rohs compliant applications: ? suitable for use: ? in sonet & sdh applications (~ 9.95gb/s) ? with metrocor? and standard smf-28? fiber 40km applications metrocor? and smf-28? are registered trademarks of corning incorporated data sheet 1 the bookham eml10 laser has an electro-absorption modulator monolithically integrated with a conventional distributed feedback multi quantum well (mqw) laser. this allows the modulation voltage to be applied to the modulator section whilst the laser section operates cw allowing extremely low wavelength chirping. specifically designed for use in stm-64/oc-192 tdm applications over 40km, with low dispersion penalty at 9.953gb/s, (<2db). a high extinction ratio of 10db. this device is available in a hermetic 7-pin ceramic butterfly package with smp/gpo connector for modulation input. the eml10 includes an optical isolator , monitor photodiode, ther mistor and thermo-electric cooler. 10gb/s ea modulator and dfb laser with gpo rf connector EML10ZCA
data sheet 2 characteristics parameter conditions min typ max unit cw laser thr eshold current 5 20 35 ma threshold power 0.001 1 uw operating current sol @iop 50 80 90 ma operating current eol @iop 100 ma laser forward voltage if=80ma @ 25, cw 1.2 2 v peak wavelength 1530 1563 nm wavelength drift vs life time 15 years typical life -100 100 pm side mode suppression 36 45 db ratio (smsr) @ iop spectral width @ iop -20dbr, note [2] 0.2 0.27 0.3 nm optical modulator modulator drive voltage 2 2.8 vpp bias voltage for n?evel -0.7 0 v fibre output power note [1] -1 0.5 2 dbm case temperatur e t case = -20 to +70 -0.5 +/-0.1 0.5 db tracking er ror s21 optical bandwidth 8 12.5 ghz s11 return loss -15 -8 db (0 ghz to 7 ghz) s11 return loss -10 -5 (7 ghz to 10 ghz) optical rise/fall time 20 to 80%, notes [1] [3] 15 20 30 ps dynamic optical notes [1] [3] 10 11 db extinction ratio oc192/sdh64 mask margin notes [1] [3] 15 25 % dispersion penalty notes [1] [4] 0.5 1.7 db (rx power penalty) tcase = 25, tlaser = 25?unless otherwise stated
data sheet 3 characteristics (continued) p arameter conditions min typ max unit p hotodiode monitor monitor diode bias voltage 1 5 10 v monitor diode current note [1] @i op 0.2 0.85 1.5 ma dark current 0.001 0.1 ua capacitance 15 pf thermo electric cooler system ther mistor r esistance 9.5 10 10.5 k @ tsub=25degc ther mistor steinhar t-har t 1.03e-03 coefficient c1 thermistor steinhart-hart 2.39e-04 coef ficient c2 thermistor steinhart-hart 1.56e-07 coef ficient c3 ther mistor b constant 0/50k 3539 3575 3611 thermistor current 1 10 100 ua laser submount temperature 20 25 35 tec cur r ent (eol) 1.3 a tec voltage (eol) 2.5 v tec power dissipation 3.3 w other optical isolation tcase = -20 to +70 25 30 db fibre length 0.8 1.2 m notes: [1] applied modulation is 9.95328gb/s, 2^23-1 prbs nrz data sequence. [2] linewidth is measured using 0.06nm resolution bandwidth. [3] optical eye parameters measur ed with a communications analyser with agilent plug-in module 86106b (or equivalent). optical 0/1 cr ossing typically 50%. [4] fiber characteristics are derived from the following equation; wher e so = 0.092 ps/(nm2.km) and l0 = 1302nm. receiver sensitivity measur ed at a ber of 1e-10. rx osnr > 35db, optimised rx cdr phase adjust and 50% cdr slice level. s 0 0 4 d( ) = ( - ) ps/(nm 2 .km) 4 3
data sheet 4 absolute maximum ratings optical systems performance applications support parameter conditions min typ max unit operating temperature -20 70 storage temperature -40 85 lead soldering time t=260 10 s fiber bend radius 20 mm axial force on fiber 5n laser for ward current cw @ 30c 150 ma laser reverse voltage 2v modulator forward voltage 1 v modulator r everse voltage -5 1 v monitor diode reverse voltage 20 v photodiode forward current 1 ma tec voltage 2.5 v tec cur r ent 1.4 a esd note [5] 500 v tcase = 25 unless otherwise stated the table below provides maximum and/or minimum values of critical parameters which will not permanently damage t he device, but for which the operating specification may not hold. the following documents are available to support customers using this product: document t itle document referrence performance comparison of commercially available an0140 rf drivers for the bookham eml11. optical component evaluation platforms are available for all bookham optical components. contact your regional sales representative for further information. note: [5] in accor dance with t elcor dia tr-nwt -000870, esd class 3, human body model. test conditions: 9.95328gb/s 2^23-1 prbs nrz data. test conditions: 9.95328gb/s 2^23-1 prbs nrz data. optical eye diagram dispersion penalty plots
data sheet 5 connections outline drawing pin # pin # 1 thermistor 5 bfm cathode 2 thermistor 6 cooler (+) 3 laser bias (+) anode 7 cooler (-) 4 bfm anode notes: laser cathode is case ground. smp/gpo center is ea modulation(-). pin 1 is nearest the fiber tail.
data sheet 6 deliverable data parameter symbol condition format unit on level modulation v o value v modulator drive voltage (pk-pk) v mod value v cw laser thr eshold current i th cw , v mod =v o v alue ma cw laser operating current i op cw value ma monitor photocur rent i m note [6] v alue ma peak wavelength l pk note [6] value nm mean modulated optical power p o note [6] v alue dbm the following data file is provided using an electronic data exchange (ede) process, a paper copy will also be provided with each module. (tlaser = 25o, tcase = 25o unless otherwise specified) note: [6] bookham test conditions, 9.95328gb/s, 2^23-1 prbs nrz data.
data sheet 7 reliability bookham has a corporate policy for continuous improvement, to provide optical components with superior quality in terms of o pto-electronic performance and operational life and reliability. the bookham eml10 and eml11 integrated electro-absorption laser products use a ridge waveguide structure for the laser and modulator, which provides superior reliability compared to buried heterostructures. it has been subjected to a stringent reliability assurance program, the conclusions of which confirm product reliability exceed the generic requirements of telcordia gr-468 core. more than 965,000 device-hours of data under accelerated life test conditions have been analysed, which for the purpose of characterising random failure rate, is equivalent to 28,300,000 device hours at 25o operating temperature [7]. electro-optic parameters for a 15 year ser vice life at operating temperature of 25o have been estimated. the estimated delta over life for specific device parameters is shown in the table below. parameter maximum allowed change change over 15 years @ 25 c mean (std. deviation) ea - extinction rate er 0.5 db -0.03 db (0.2 db) laser threshold current 10 % 0.01 % (0.3 %) laser efficiency 10 % -0.2 % (0.4 %) laser cur r ent for constant output power 10 % 0.2 % (0.4 %) laser power at constant current (100 ma) 10 % -0.2 % (0.4 %) the reliability failure rate statistics are summarized in the table below. the results are reported for the operation of the device against a laser bias of 100 ma drive cur rent. the resultant low mttf [8], essentially demonstrating minimal component wear out over the rated 15-year lifetime of the component [7]. parameter value units median life (ml) at 25 c 528 (1) y ears (standard deviation of the natural logarithms of the ttfs) 0.64 (mean of the natural logarithms of the ttfs) 6.27 maximum wear-out failure rate 0 fits average wear-out failure rate over 15 years life 0 fits w ear-out thermal activation energy 0.5 ev random failure rate at 25 at 60% confidence 33 fits random failur e rate activation ener gy 0.35 ev notes: [7] refer to qr1524, qualification report for the bookham 10gb/s electro-absorption modulated laser. [8] bookham technologys policy is to derive random failure rates from actual field data.
data sheet bh12939 rev 2.0 january 2007. ?ookham 2005. bookham is a registered trademark of bookham inc. d anger output power 43 mw wa velen gth >1520 nm class iii b laser product invisible laser radiation - avoid direct exposure to beam this product complies with 21cfr 1040.10 reference iec 60825-1 edition 1.2 invisible laser radiation do not view directly with optical instruments class 1m laser product 8 important notice performance figures, data and any illustrative material provided in this data sheet are typical and must be specifically confirmed in writing by bookham before they become applicable to any particular order or contract. in accordance with the bookham policy of continuous improvement specifications may change without notice. the publication of information in this data sheet does not imply freedom from patent or other protective rights of bookham or others. further details are available from any bookham sales representative. contact information north america bookham worldwide headquar ters 2584 junction a ve. san jose ca 95134 usa ? tel: +1 408 919 1500 ? fax: +1 408 919 6083 www.bookham.com sales@bookham.com europe paignton office brixham road paignton devon tq4 7be united kingdom ? tel: +44 (0) 1803 66 2000 ? fax: +44 (0) 1803 66 2801 asia shenzhen office 2 phoenix road futian fr ee t rade zone shenzhen 518038 china ? tel: +86 755 33305888 ? fax: +86 755 33305805 +86 755 33305807 ordering information: EML10ZCA - [connector t ype] j28 = sc/pc j34 = fc/pc j57 = lc j59 = mu example EML10ZCA-j28 is an ea laser with gpo rf connector with sc/pc fiber connector for 40km reach applications. caution - use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. rohs compliance bookham is fully committed to environment protection and sustainable development and has set in place a comprehensive program for removing polluting and hazardous substances from a ll of its products. the relevant evidence of rohs compliance is held as part of our controlled documentation for each of our compliant pr oducts. rohs compliance parts are available to order, please refer to the ordering information section for fur ther details. iso14001:1996 ems 504193 tl9000 rev 3.0 (iso9001:2000) fm15040
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