preliminary data sheet april 1999 980-type ultrahigh- reliability pump laser module the 980-type ultrahigh-reliability pump laser module is ide- ally suited for fiber amplifier-based optical transmission sys- tems that require a long-term life expectancy. features n extremely high reliability laser-welded packaging technology used to attain ultrastable long-term operation 29-year life n planar ingaas pin photodiode monitor for laser back-facet output n wide range of stable cw optical output power n individually certified for ultrahigh reliability n ingaas ridge waveguide 980 nm single-mode laser diode n standard low-profile, laser-welded, metal, her- metic, 14-pin butterfly package n single-mode fiber with bragg grating (fbg) for stable operation n stable single spatial mode kink-free operation over a wide range of temperatures and currents applications n undersea optical transmission systems n ultrahigh reliability optical communications for mili- tary systems description the 980-type pump laser module is a precision, high-performance, ultrahigh-reliability lightwave com- ponent that provides high output power light, in the 980 nm range. the 980-type pump laser module is comprised of a single-mode laser diode, pin back- facet monitor, microlensed single-mode fiber, and a fiber bragg grating (fbg) for improved stability, all encased in a specially designed 14-pin, oxygen free, butterfly package. the 980-type pump laser module is capable of providing a wide range of output power in the 974 nm to 984 nm wavelength range for erbium- doped amplifier (edfa) system application. the pump laser module is designed and individually certi- fied for high-reliability operation and long-term life expectancy. the 980 nm ingaas laser chip utilizes a ridge guide design for high performance and reliabil- ity. chip and facet parameters are optimized for stabi- lized optical coupling and efficient pumping of the edfa. the laser package design also includes a microlensed single-mode fiber and a planar ingaas pin back-facet photomonitor assembled in a modular organic-free hermetic package. laser welding tech- nology is used for critical joints to achieve long-term stability. data is archived for at least ten years. each module is fully characterized and traceable. long-life performance and reliability are ensured through extensive steps of burn-in, overstress, and power aging. the 980-type pump laser module is available with a typical power output range of 20 mw to 70 mw.
980-type ultrahigh preliminary data sheet reliability pump laser module april 1999 2 2 lucent technologies inc. description (continued) the 980-type pump laser module has been specifi- cally designed for undersea optical amplified very high capacity transmission systems that require long-term life expectancy. the extremely stringent reliability requirements imposed on the 980-type (necessary to achieve long-term system life) are accomplished through careful design, exacting manufacture, and thor- ough testing. the 980-type qualification plan consists of a basic set of electro-optic and mechanical tests designed to confirm the performance and reliability of the module over its projected service life under assumed operating conditions. custom designed, extended qualification test programs can be developed to focus on customer system requirements. based on the results of qualification testing, a certifica- tion program has been developed to ensure the high- reliability performance of the devices. each 980-type device undergoes this certification process where the performance parameters are measured before, during, and after environmental stresses. the certification results for each 980-type pump laser module are then examined to ensure that only the pump laser modules that exhibit performance consistent with long-term sys- tem operation are selected for product. each 980-type is individually serialized for full trace- ability and is shipped with the appropriate test data. the 980-type assembly, test, and certification facilities have all passed the rigorous qualification process required for all facilities that manufacture devices employed in undersea applications. also, on an ongo- ing basis, small quantities of product from each manu- facturing lot are retained and tested as part of a surveillance program for undersea devices. each sur- veillance group is subjected to the complete spectrum of environmental/mechanical stresses required during the qualification process. the surveillance results are reviewed and compiled so that long-term trends can be studied. the reliability performance of the 980-type pump laser module is a result of a rigorous qualifica- tion process combined with an extensive and ongoing surveillance program. pinout information to p v i e w. 1-675(f).e figure 1. pinout schematic 7654321 8 9 10 11 12 13 14
preliminary data sheet 980-type ultrahigh april 1999 reliability pump laser module 3 lucent technologies inc. pinout information (continued) table 1. pinout descriptions handling precautions note: dimensions are inches and (millimeters). 1-532(f) figure 2. fillister head screw power sequencing adopt the following sequence for turn-on as a matter of good practice to avoid the possibility of damage to the pump laser module from power supply switching tran- sients: 1. all ground connections 2. most negative supply 3. most positive supply 4. all remaining connections reverse the order for the proper turn-off sequence. mounting instructions the minimum fiber-bend radius is 25 mm. to avoid degradation in performance, mount the mod- ule on the board as follows (see figure 2): 1. place the bottom flange of the module on a flat heat sink at least 0.5 in. x 1.180 in. (12.7 mm x 30 mm) in size. the surface finish of the heat sink should be better than 32 in. (0.8 m), and the surface flatness must be better than 0.001 in. (25.4 m). mount four #2-56 screws with fillister heads (m2- 3 mm) at the four screw hole locations (see outline diagram). the fillister head diameter must not exceed 0.140 in. (3.55 mm). do not apply more than 2 in./lb. of torque to the screws. to minimize package distortion, it is recommended that a washer is used above and beneath each mounting foot. electrostatic discharge caution: this is a class 0 esd device which is susceptible to damage as a result of electrostatic discharge (esd). take proper precautions during both handling and testing. follow jedec publication no. 108-a (dec. 1998). lucent employs a human-body model (hbm) and the field-induced charged-device model (cdm) for esd- susceptibility testing and protection design evaluation. esd voltage thresholds are dependent on the critical parameters used to define the model. a standard hbm (resistance = 1.5 k w , capacitance = 100 pf) is widely used and, therefore, can be used for comparison pur- poses. the hbm esd threshhold presented here was obtained using these circuit parameters: pin connection 1 chassis ground 2 chassis ground 3 photodetector anode 4 photodetector cathode 5 chassis ground 6 chassis ground 7 chassis ground 8 chassis ground 9 chassis ground 10 pump laser anode 11 pump laser cathode 12 chassis ground 13 chassis ground 14 chassis ground 0.118 (3.00) 0.062 (1.58) 0.140 (3.56) 0.031 (0.79) 0.129 (3.28) 0.086 (2.18) 0.041 (1.04) parameter value unit charged-device model 3 200 v human-body model 3 400 v
980-type ultrahigh preliminary data sheet reliability pump laser module april 1999 4 lucent technologies inc. absolute maximum ratings the lpm will stay certified if it is operated at the maximum rating, for brief periods. exposure to maximum ratings for extended periods can adversely affect device reliability. characteristics table 2. electrical characteristics table 3. optical characteristics * depending on the exact requirements, there may be two codes (deep and shallow water) necessary. parameter symbol min max unit storage temperature range t stg C20 60 c operating temperature range t op 040c laser reverse voltage v r 2v laser forward current i f 400 ma laser reverse current i rev 50 m a fiber output power p f 150 mw pin monitor reverse voltage v pin 40v pin monitor forward current if pin 2ma pigtail pull force (axial) f 9 n pigtail bend radius r p 25 mm shock g 100 g vibration (10 hz to 2000 hz) v ib 5g parameter symbol min max eol unit operating voltage (cw, 70 mw fiber output) v op 2.22.2v operating current (cw, 70 mw fiber output) i op 100 200 250 ma monitor reverse-bias voltage v rmon 40v monitor current i = i op i rmon 0.3 2.0 2.0 ma monitor dark current (v det = C5 v) i d 25ma parameter symbol min max unit optical output power adjustment* p o 15 70 mw kink power p k 85 mw center wavelength l c 974 984 nm power tracking (over 25 c interval) d p o t 0.6db weighted rms spectral width dl rms 0.7nm output spectrum side-mode suppression dl supp 20db optical return loss at pigtail (1525 nm1570 nm) rl 13 db reliability . over 29 years at the max operating conditions of figure 2. 5% failures at 25 c
preliminary data sheet 980-type ultrahigh april 1999 reliability pump laser module 5 lucent technologies inc. characteristics (continued) table 4. physical characteristics ordering information parameter description pigtail fiber type single-mode lucent technologies optical fiber lightguide jacket type lucent technologies minicord, 1.55 mm o.d. fiber length between fbg and lpm 1.1 m fiber length beyond fbg 1.5 m2.0 m minimum radius of curvature 25 mm connector type fc/apc device part number comcode ultrahigh-reliability pump laser module 980x tbd
980-type ultrahigh preliminary data sheet reliability pump laser module april 1999 6 lucent technologies inc. class iiib laser product this product complies with 21 cfr 1040.10 and 1040.11. single-mode connector wavelength = 0.98 m maximum power = 70 mw because of size constraints, labeling is not affixed to the module but is contained in the shipping carton. product is not shipped with power supply. caution: use of controls, adjustments, and procedures other than those specified herein may result in hazardous laser radiation exposure. danger invisible laser radiation avoid direct exposure to beam. indium gallium arsenide laser 70 mw maximum output @ 0.98 ? class iiib laser product complies with 21 cfr 1040.10 and 1040.11 danger: invisible laser radiation when disconnected and fiber removed. avoid direct exposure to beam.
preliminary data sheet 980-type ultrahigh april 1999 reliability pump laser module 7 lucent technologies inc. outline diagram dimensions are in inches and (millimeters). tolerances are 0.005 in. ( 0.127 mm). 1-1008(f).r1 0.500 (12.70) lead 7 0.500 (12.70) 0.350 (8.89) 0.020 (0.51) 0.600 (15.24) 0.100 (2.54) 0.212 (5.38) lead 1 0.105 1.024 (26.01) 1.180 (29.97) 2.050 (52.07) 0.078 (1.98) lead 14 lead 8 0.820 (20.83) 0.655 (16.64) pinched vacuum tube protective cap 0.20 (0.51) 0.010 (0.25) 0.215 (5.46) 0.120 (3.05) dia 0.060 (1.52) dia 3.00 (76.2) 10.0 (254) min jacket join 59.078.0 (14991981) 14.0 (356) min fiber splice 43.0 (1092) max grating connector ref 0.430 (10.92) 0.368 (9.35) 0.215 (5.46) 0.008 (0.20) 0.336 (8.53) (12.67) dia
for additional information, contact your microelectronics group account manager or the following: internet: http://www.lucent.com/micro , or for optoelectronics information, http://www.lucent.com/micro/opto e-mail: docmaster@micro.lucent.com n. america: microelectronics group, lucent technologies inc., 555 union boulevard, room 30l-15p-ba, allentown, pa 18103 1-800-372-2447 , fax 610-712-4106 (in canada: 1-800-553-2448 , fax 610-712-4106) asia pacific: microelectronics group, lucent technologies singapore pte. ltd., 77 science park drive, #03-18 cintech iii, singap ore 118256 tel. (65) 778 8833 , fax (65) 777 7495 china: microelectronics group, lucent technologies (china) co., ltd., a-f2, 23/f, zao fong universe building, 1800 zhong shan xi road, shanghai 200233 p. r. china tel. (86) 21 6440 0468 , ext. 316 , fax (86) 21 6440 0652 japan: microelectronics group, lucent technologies japan ltd., 7-18, higashi-gotanda 2-chome, shinagawa-ku, tokyo 141, japan tel. (81) 3 5421 1600 , fax (81) 3 5421 1700 europe: data requests: microelectronics group dataline: tel. (44) 1189 324 299 , fax (44) 1189 328 148 technical inquiries: optoelectronics marketing: (44) 1344 865 900 (ascot uk) lucent technologies inc. reserves the right to make changes to the product(s) or information contained herein without notice. n o liability is assumed as a result of their use or application. no rights under any patent accompany the sale of any such product(s) or information. copyright ? 1999 lucent technologies inc. all rights reserved april 1999 ds99-112lwp
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