datasheet | august 2012 fiber optics | rev 2012.08 information contained herein is deemed reliable and accurate as of the issue date. emcore reserves the right to change the desi gn or specification at any time without notice. applications video signal distribution in hfc and fttx nodes signal distribution in l-band and wireless remoting links high linearity, low power fiber links features linear dfb laser design ouput power up to 10 dbm available bandwidth > 4000 mhz rohs compliance optical isolator low power consumption monitor photodiode emcore?s model 1933 dfb lasers offer a low cost solution for linear fiber optic links. these components can be cooled with external thermo-electric coolers for high stability, or run without tec?s to r educe 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 assemb ly together with monitor photodiode and isolator, for flexible integration into various transmitter configurations. performance highlights parameters min typical max units operating case temperature range -40 - 85 ? c optical output power (1) 3 - 5.9 dbm frequency range 5 - 4000 mhz carrier-to-noise ratio (79 channels) (1) 51 - - db composite second order (79 channels) (1) dbc composite triple beat (79 channels) (1) dbc center wavelength 1300 - 1320 nm optical return loss (1) 35 - - db side mode suppression ratio, cw (1) 30 - - db 1. performance at tcase = 25c 1933 f/r/w coaxial dfb laser diode 1310 nm, wide bandwidth 5 mhz ? 4000 mhz
datasheet | august 2012 fiber optics | rev 2012.08 information contained herein is deemed reliable and accurate as of the issue date. emcore reserves the right to change the design or specification at any time without notice. absolute maximum ratings 1 stresses in excess of the absolute maximum ratings can caus e 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 th e 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 85 o c laser diode forward current i op cw - 150 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 onl y; proper device performance is not guaranteed over rating listed above. operation beyond these maximum conditions may degrade device performance, lead to device failure, shorter lifetime, and will invalidate the device warranty. electrical/optical characteristics parameters symbol conditions/notes min typ max unit optical output power p o 1933r opt model: 3 ? 6dbm 1933w opt model: 3 ? 10dbm 1933f opt model: 3 ? 10dbm 3 5 6 9 10 - - - - - 4.9 5.9 8.9 9.9 11.9 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 - 1.17 1.8 v slope efficiency se t case = 25 oc, i op 0.07 - 0.3 mw/ma ? thermal slope efficiency tse se(tc)/se(25oc) t case = -20oc to 85 oc 0.4 - 1.2 - ? laser input impedance z - 2 4 8 ?? mpd current i mpd v mpd = 5v, i op 200 - 2000 ? 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 , t case = 25oc 5 mhz - 1002 mhz - - -150 db/hz 1933 f/r/w coaxial dfb laser diode 1310 nm, wide bandwidth 5 mhz ? 4000 mhz
datasheet | august 2012 fiber optics | rev 2012.08 information contained herein is deemed reliable and accurate as of the issue date. emcore reserves the right to change the design or specification at any time without notice. electrical/optical characteristics (continued) parameters symbol conditions/notes min typ max unit tracking error pf i mon = const er = 10log(p o /2.0) [db] -1 - +1 db optical isolation, t case = 25oc iso double isolator 45 - - 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 1. referenced to base of to header. forward path rf characteristics 1933f performance parameter symbol conditions/notes min typ max unit frequency response flatness 1 |s 21 | 5 mhz - 1002 mhz - - 1 db p-p response up-tilt 1 5 mhz - 1002 mhz -1 3 db carrier-to-noise ratio 2,3,4 cnr i op 51 - - db composite second order 2,3,4 standard linearity enhanced linearity cso i op t case = 25oc - - - - -57 -60 dbc composite triple beat 2,3,4 standard linearity enhanced linearity ctb i op t case = 25oc - - - - -65 -68 dbc 1. i op , t case = 25 ? c. test with the laser input pin matched to a 50 ? system. 2. 3.7% omi, 79 ntsc unmodulated carriers (50 mhz to 550 mhz). 10 km fiber. 3. received power = 0 dbm. 4. i op , t case = 25 ? c. test with the laser input pin matched to a 75 ? system. return path rf characteristics 1933r performance parameters symbol conditions/notes min typ max unit frequency response flatness 1 |s 21 | 5 mhz - 200 mhz - - 1 db p-p second order distortion 2 standard linearity enhanced linearity dso p f = 3 dbm, omi = 10% each 2-tone test: f1=7mhz, f2=56mhz 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=7mhz, f2=56mhz 20 km of fiber (7.5 db total loss with connector) 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. 1933 f/r/w coaxial dfb laser diode 1310 nm, wide bandwidth 5 mhz ? 4000 mhz
datasheet | august 2012 fiber optics | rev 2012.08 information contained herein is deemed reliable and accurate as of the issue date. emcore reserves the right to change the design or specification at any time without notice. wide bandwidth path rf characteristics 1933w performance parameters symbol conditions/notes min typ max unit frequency response flatness 1 |s 21 | 900 mhz ? 4000 mhz - - 4 db p-p input third order intercept 2 iip3 standard linearity, i bb 30 - - dbm 1db compression point 3 p 1db i bb 16 - - dbm tc = 25c, iop constant o p t p owe r -150 - - db/hz relative intensity noise 4 (bw = 50mhz ? 2ghz) rin tc = -20c to +85c, iop constant opt power -145 - - db/hz 1. i op , t case = 25 ? c. test with the laser input pin matched to a 50 ? system. 2. iip3 is measured at i bb where i bb is the bias point at which simultaneously t he laser at its best linearity and the optical power is within specification. test frequency f1 = 2700mhz, f2 = 2703mhz, rf in = 0dbm/frequency. 0km fiber. 3. test at 2700mhz. 0km fiber. 4. guaranteed by design. not to be tested in production package outline drawing (dimensions are in mm) mounting bracket 1933 f/r/w coaxial dfb laser diode 1310 nm, wide bandwidth 5 mhz ? 4000 mhz
datasheet | august 2012 fiber optics | rev 2012.08 information contained herein is deemed reliable and accurate as of the issue date. emcore reserves the right to change the design or specification at any time without notice. reliability/quality designed to meet qualificati on requirements of telcordia tm (bellcore) gr-468-core. schematic and pinout schematic and pinout a pin definitions for pinout a laser safety this product meets the ap propriate standard in title 21 of the code of federal regulat ions (cfr). fd a/cdrh class iiib laser product. this device has been classified with the fda/cdrh under accession number 0220191. wavelength = 1.3 ? m. maximum power = 50 mw. because of size constraints, laser safety labeling (includi ng 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. pin description 1 ld anode, case ground 2 ld cathode 3 pd cathode 4 pd anode 1933 f/r/w coaxial dfb laser diode 1310 nm, wide bandwidth 5 mhz ? 4000 mhz 1 2 3 4 pd ld pinout a 1 2 3 4 pd ld pinout a bottom view danger invi sible laser radi ati on is emitted from the end of fiber or connector avoid di rect exposure to beam do not vie w be am dire ct ly wi th optical instruments invisible laser radiat ion emitted from end of fiber or connector avo i d ex po su re t o be am cl ass 3 b l aser pro duct iec- 608 25 19 93 ma x. out put : 5 0 m w wav el eng th: 1.3 ? m danger i nvi si ble las er radi ati o n ma x. ou t pu t: 50 mw, class iiib laser product avoid direct exposure to beam w avelength: 1.3 ? m
datasheet | august 2012 fiber optics | rev 2012.08 information contained herein is deemed reliable and accurate as of the issue date. emcore reserves the right to change the design or specification at any time without notice. ordering code definitions 1933f - a - ww - x - yy - zz - v example 1933f-b-di-a-sa-10-n : forward path uncooled coaxial laser, enhanced li nearity, double isolator, pinout a, sc/apc optical connector, 10dbm optical power, no mounting bracket 1933 f/r/w coaxial dfb laser diode 1310 nm, wide bandwidth 5 mhz ? 4000 mhz family name 1933f: forward path, uncooled, coaxial laser 1933r: return path, uncooled, coaxial laser 1933w: wideband, uncooled, coaxial laser pinout x = a: pinout a distortion performance a = a: standard linearity a = b: enhanced linearity ( not available for 1933w ) fiber length, optical connector 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 power zz = 03: 3 dbm (2 mw) zz = 05: 5 dbm (3 mw) zz = 06: 6 dbm (4 mw) zz = 09: 9 dbm (8 mw) ? ( only available for 1933f and 1933w ) zz = 10: 10 dbm (10 mw) ? ( only available for 1933f and 1933w ) mounting bracket v = b: mounting bracket v = n: no mounting bracket optical isolator ww = di: double isolator ( only available for optical 3 ? 6dbm ) ww = si: single isolator
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