fiber optics june 2001 low power STL81007X 1550 nm fp laser in fc receptacle package features ? designed for applications in fiber optic networks laser diode with multi-quantum well structure suitable for bit rates up to 1 gbit/s ternary photodiode at rear mirror for monitoring and control of radiant power hermetically sealed subcomponents, similar to to 46 sm receptacle with 2-hole flange and optional connector absolute maximum ratings module operating temperature range at case, t c ............ ?40c to 85c storage temperature range, t stg ......................... ?40c to 85c soldering temperature t max =10 s, 2 mm distance from bottom edge of case, t s ...............260c laser diode direct forward current, i f max ......................................... 120 ma radiant power cw, p f, rad .................................................1 mw reverse voltage, v r ............................................................... 2 v monitor diode reverse voltage, v r ..............................................................10 v forward current, i f .............................................................2 ma dimensions in inches (mm) stl81007g m8 x .029 (.75) ? .022 (.55) ? .016 (.40) .590 (15.0) .432 (11.0) .086 (2.2) .071 (1.8) .322 (8.2) .307 (7.8) .590 (15.0) .472 (12.0) 1 4 3 2 .098 (2.5) .083 (2.1) .365 (9.3) .350 (8.9) .534 (13.6) .519 (13.2) .283 (7.2) .267 (6.8) .755 (19.2) .739 (18.8) spacing .1 (2.54)
fiber optics STL81007X, low power 1550nm fp-laser in fc receptacle package 2 description differences between a fabry-perot and a dfb laserdiode a conventional laser consists of an amplifying medium and two end mirrors. the cavity is longer than one wavelength, and a standing wave is created. the number n of half wavelengths is . if l >> then we speak of a fabry-perot laser because the laserdiode emits multi-longitudinal modes. typi- cally the laserdiode is 250 m long. for =1310 nm/1550 nm n is about 350. therefore for many neighboring wavelengths the "standing wavelength" condition specified above is fulfilled. for a dfb-laser a special grating acts as a distributed filter allowing only one of the cavity's longitudinal modes to propa- gate. this can be described with a reduced oscillator length which is in the range of . for such a reduced oscillator length the standing wavelength condition will be fulfilled for n 2 what means for only one wavelength. figure 1. fabry-perot laserdiode figure 2. dfb laserdiode technical data the electro-optical characteristics described in the following tables are only valid for use within the specified maximum rat- ings or under the recommended operating conditions. transmitter electro-optical characteristics monitor diode electro-optical characteristics note 1. the tracking error te is the maximum deviation of p f at constant current i mon over a specified temperature range and relative to the reference point: i mon,ref =i mon (t=25c, p f =0.5 p f, max. ). thus, te is given by: n = 2 x l l ~ 1 wavelength intensity 0 012345 4 wavelength intensity 0 012345 4 parameter symbol min. typ. max. units optical output power (maximum) p f, max 0.4 mw emission wavelength center of range p f =0.5 p f, max. trans 1510 1590 nm spectral width (rms) 5 temperature coeffi- cient of wavelength tc 0.5 nm/k threshold current (whole temperature range) i th 245ma forward voltage p f =0.5 p f, max. v f 1.5 v radiant power at i th p th 10 w slope efficiency ( ? 40...85 c) 860mw/ a variation of 1st deriva- tive of p/i (0.05 to 0.4 mw) s var ? 30 30 % differential series resis- tance r s 8 ? rise time (10% ? 90%) t r 100 200 ps fall time (10% ? 90%) t f 270 500 parameter symbol min. typ. max. units dark current, v r =5 v, p f =0, t=t max i r 500 na photocurrent, v r =5 v, p f =0.5 p f, max. i p 100 1000 a capacitance, v r =5 v, f=1 mhz c 5 10 pf tracking error (1) , v r =5 v te ? 11db [] [] [] c t db te c f f x = 25 log 10 p p o
fiber optics STL81007X, low power 1550nm fp-laser in fc receptacle package 3 end of life time characteristics fiber data the mechanical fiber characteristics are described in the follow- ing table. fiber characteristics pin description and flange regulatory compliance eye safety ensure to avoid exposure of human eyes to high power laser diode emitted laser beams. especially do not look directly into the laser diode or the collimated laser beam when the diode is activated. class 3b laser product according to iec 60825-1 required labels class iiib laser product according to fda regulations complies with 21 cfr 1040.10 and 1040.11 required label laser data flange option parameter symbol min. typ. max. units threshold current at t=t max i th 60 ma current above thresh- old, over full tempera- ture range, at i mon,ref =i mon (t=25 c, p f =0.5 p f, max. , bol) ? i f 770 tracking error te ? 1.5 1.5 db monitor dark current, v r =2 v, t=t max i r 1a parameter min. typ. max. units mode field diameter 8 9 10 m cladding diameter 123 125 127 mode field/cladding concentricity error 1 cladding non-circularity 2 % mode field non-circularity 6 cut off wavelength 1270 nm jacket diameter 0.8 1 mm bending radius 30 tensile strength fiber case 5 n length 0.8 1.2 m pinning (bottom view) pin description transmitter available pinnings with flange type transmitter STL81007X 1 feature standard comments electrostatic discharge (esd) to the electrical pins mil-std 883d method 3015.7 class 1 (<500 v) 1 2 3 4 2.54 mm 1 4 2 3 md ld pinning 1 wavelength 1550 nm maximum total output power less than 50 mw beam divergence (1/e 2 )10 model type sth51007g sm fc receptacle package invisible laser radiation avoid exposure to beam class 3b laser product semiconductor laser invisible radiation class iiib laser product laser radiation - avoid direct exposure to beam
published by infineon technologies ag ? infineon technologies ag 2001 all rights reserved attention please! the information herein is given to describe certain components and shall not be considered as warranted characteristics. terms of delivery and rights to technical change reserved. we hereby disclaim any and all warranties, including but not limited to warranties of non-infringement, regarding circuits, descriptions and charts stated herein. infineon technologies is an approved cecc manufacturer. information for further information on technology, delivery terms and conditions and prices please contact the infineon technologies offices or our infineon technologies representatives worldwide - see our webpage at www.infineon.com/fiberoptics warnings due to technical requirements components may contain dangerous substances. for information on the types in question please contact your infineon technologies offices. infineon technologies components may only be used in life-support devices or systems with the express written approval of infineon technologies, if a failure of such components can reasonably be expected to cause the failure of that life-support device or system, or to affect the safety or effectiveness of that device or system. life support devices or systems are intended to be implanted in the human body, or to support and/or maintain and sustain and/or protect human life. if they fail, it is reasonable to assume that the health of the user or other persons may be endangered. infineon technologies ag fiber optics wernerwerkdamm 16 berlin d-13623, germany infineon technologies, inc. fiber optics 1730 north first street san jose, ca 95112, usa infineon technologies k.k. fiber optics takanawa park tower 20-14, higashi-gotanda, 3-chome, shinagawa-ku to ky o 14 1, j a p a n
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