datasheet | february 20, 2008 for more information on this and other products: contact sales at emcore 626-293-3400, or visit www.emcore.com. applications return path transport in hfc and fttx networks high linearity, low power fiber links features linear dfb laser design rohs compliance optical isolator low power consumption monitor photodiode model 1933r, coaxial 1310nm dfb return path laser diode emcore?s model 1933r dfb lasers offer a low cost solution for linear return path fiberoptic links. these components can be cooled with external thermo-electric coolers for high stability, or run without tec?s to reduce power consumption. the dfb laser builds upon ortel?s long history of high performance, leading edge designs in catv, wireless, and high speed digital applications. the laser diode devices are packaged in a compact hermetic assembly together with monitor photodiode and isolator, for flexible integration into various transmitter configurations. performance highlights min typical max units operating case temperature range -40 - 80 c optical output power 3 5 6 - - - 4.8 5.8 8.0 dbm frequency range 5 - 200 mhz second order distortion standard linearity enhanced linearity - - - - -52 -58 dbc third order distortion standard linearity enhanced linearity - - - - -63 -65 dbc center wavelength 1300 - 1320 nm optical return loss 35 - - db side mode suppression ratio, cw 30 - - db see following pages for complete specifications and conditions.
datasheet | february 20, 2008 emcore corporation model 1933r 1310 nm coaxial dfb return path laser diode absolute maximum ratings 1 stresses in excess of the absolute maximum ratings can cause permanent damage to the device. these are absolute stress ratings only. functional operation of the device is not implied at these or any other conditions in excess of those given in the operational sections of the data sheet. exposure to absolute maximum ratings for extended periods can adversely affect device reliability. parameters symbol condition/notes min max unit storage temperature t stg non-operating -40 85 o c operating case temperature t op continuous -40 80 o c laser diode forward current i op cw - 100 ma laser diode reverse voltage v r continuous - 1.0 v photodiode forward current i mpd continuous - 2 ma photodiode reverse voltage v mpd,r continuous - 10 v average rf input power pin 60 seconds - 62 dbmv lead soldering temperature/time - - - 260/10 o c/sec relative humidity rh continuous - 85 % esd - human body model -500 +500 v 1. absolute maximum data are limited to system design only; proper device performance is not guaranteed over rating listed abov e. operation beyond these maximum conditions may degrade device performance, lead to device failure, shorter lifetime, and will invalidate t he device warranty.
3 emcore corporation datasheet | february 20, 2008 model 1933r 1310 nm coaxial dfb return path laser diode electrical/optical characteristics parameters symbol conditions/notes min typ max unit optical output power p o 3 dbm version 5 dbm version 6 dbm version 3 5 6 - - - 4.8 5.8 8.0 dbm threshold current i th t case = 25 oc t case = 45 oc - - 8 13 15 20 ma laser bias current i op - - - 80 ma forward voltage v f i op - 1.0 1.8 v laser input impedance z - 2 4 8 ? mpd current i mpd v mpd = 5v, i op = 40 ma 200 - 1800 a mpd dark current i d v mpd = 5v, i op = 0 t case = 25oc - - 50 na center wavelength c i op 1300 - 1320 nm relative intensity noise rin cw, i op , 5 mhz < f < 200 mhz - -155 -145 db/hz optical isolation iso t case = 25oc 30 - - db spectral width (-20 db) ? i op - 0.1 1.0 nm side mode suppression ratio smsr i op 30 45 - db optical return loss orl t case = 25oc 35 - - db rf characteristics parameters symbol conditions/notes min typ max unit frequency response flatness 1 |s 21 | 5 mhz < f < 200 mhz - - 1 db p-p response up-tilt 1 5 mhz < f < 200 mhz 0 2 db second order distortion 2 standard linearity enhanced linearity dso p f = 3 dbm, omi = 10% each 2-tone test: f1=13mhz, f2=19mhz 20 km of fiber (7.5 db total loss with connector), f1 f2 - - - - -52 -58 dbc third order distortion 2 standard linearity enhanced linearity dtb p f = 3 dbm, omi = 10% each 2-tone test: f1=13mhz, f2=19mhz 20 km of fiber (7.5 db total loss with connector), 2f1 - f2, 2f2-f1 - - - - -63 -65 dbc 1. i op , t case = 25 c. test with the laser input pin matched to a 50 ? system. 2. i op , t case = 25 c. test with laser input pin matched to a 75 ? system.
4 emcore corporation datasheet | february 20, 2008 model 1933r 1310 nm coaxial dfb return path laser diode package outline drawing mounting bracket
5 emcore corporation datasheet | february 20, 2008 model 1933r 1310 nm coaxial dfb return path laser diode reliability/quality designed to meet qualification requirements of telcordia tm (bellcore) gr-468-core. schematic and pinout pin definitions pin description 1 ld anode, case ground 2 ld cathode 3 pd cathode 4 pd anode 1 2 3 4 pd ld pinout a 1 2 3 4 pd ld pinout a
6 emcore corporation datasheet | february 20, 2008 model 1933r 1310 nm coaxial dfb return path laser diode laser safety this product meets the appropriate standard in title 21 of the code of federal regulations (cfr). fda/cdrh class iiib laser product. this device has been classified with the fda/cdrh under accession number tbd. single-mode fiber pigtail with sc/apc connectors (standard). wavelength = 1.3 m. maximum power = 50 mw. because of size constraints, laser safety labeling (including an fda class iiib label) is not affixed to the module, but attached to the outside of 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 invi sible laser radi ati on is emitte d from the e nd of fiber or connector avoid direct exposure to beam do not view beam directly with optical instruments invisible laser radiat ion emitted from end of fiber or connecto r avo i d ex po su re t o be am cl ass 3 b l a ser pr oduct iec-608 25 19 93 ma x. output : 5 0 m w wav el engt h: 1. 3 m danger i nvi si ble las er radi ati o n max. output : 50 mw, class i ii b laser product avoi d di rect expos ure to beam w avelength: 1.3 m
7 emcore corporation datasheet | february 20, 2008 model 1933r 1310 nm coaxial dfb return path laser diode ordering code definitions 1933r-w-x-yy-zz-v example 1933r-a-a-sa-06-n : return path uncooled coaxial laser, standard linearity, pinout a, sc/apc optical connector, 6 dbm optical power, no mounting bracket. information contained herein is deemed to be reliable and accurate as of issue date. emcore reserves the right to change the de sign or specifications of the product at any time without notice. emcore and the emcore logo are trademarks of emcore corporation. ds.1933 ? copyright 2007. emcore corporation emcore corporation 2015 west chestnut street a lhambra, california 91803-1542 tel: 626-293-3400 fax: 626-293-3428 www.emcore.com family name 1933r: return path, uncooled, coaxial laser pinout x = a: pinout a distortion performance w = a: standard linearit y w = b: enhanced linearity fiber length, optical connecto r yy = fa: fc/apc, 900 micron buffer, 1.0 ? 1.4 meter yy = sa: sc/apc, 900 micron buffer, 1.0 ? 1.4 meter optical output powe r zz = 03: 3 dbm (2 mw) zz = 05: 5 dbm (3 mw) zz = 06: 6 dbm (4 mw) mounting bracket v = b: mounting bracket v = n: no mounting bracket
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