datasheet | february 2016 fiber optics | rev 2016.02 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. 1622a/b cwdm dfb laser module applications cwdm forward path broadcast and narrowcast networks cwdm cuts new fiber costs high optical splits features oc-48 pinout compatible telcordia technologies tm 468 compliant up to 79 channel count up to 20 mw wide temperature range ? stable even in harsh environments the 1622a/b itu g.695 compliant cwdm forward path dfb laser components are designed for both broadcast and narrowcast analog applications. the highly linear, oc-48 pinout compatible components feat ure options for up to 20 mw of minimum optical output power with superior distortion performance over an enhanced temperature range of -40 ? c to +85 ? c. performance highlights min typical max units wavelength 1287 1307 1327 1347 1367 1291 1311 1331 1351 1371 1295 1315 1335 1355 1375 nm optical output power 4 6 8 10 13 16 20 - - mw temperature range -40 - +85 ? c frequency range 5 - 1002 mhz carrier to noise ratio 51 - - db composite second order (1622b versions) - - -59 dbc composite triple beat - - -65 dbc
datasheet | february 2016 fiber optics | rev 2016.02 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. 1622a/b cwdm dfb laser module absolute maximum ratings stresses in excess of the absolute maximum ratings can ca use 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. parameter symbol condition min max unit operating temperature range t c continuous -40 +85 c storage temperature range t stg - -40 +85 c laser forward dc current - - - 150 ma photodiode reverse voltage v rpd - - 10 v laser reverse voltage, dc - - - 1 v esd - hbm: r = 1500 ohm, c = 100pf -500 500 v tec current i tec continuous -1.9 1.9 a electrical/optical characteristics laser temperature (tl) = 25 o c, i f =i op , beginning of life (bol) parameter symbol condition min typ max unit wavelength 1290 nm option 1310 nm option 1330 nm option 1351 nm option 1371 nm option 1287 1307 1327 1347 1367 1291 1311 1331 1351 1371 1295 1315 1335 1355 1375 nm optical output power - -04 version -06 version -08 version -10 version -13 version -16 version -20 version 4 6 8 10 13 16 20 - - - - - - - - - - - - - - mw optical isolation iso - 30 - - db side-mode suppression ration smsr - 35 - - db threshold current i th - - - 20 ma operating current i op varies with power option - - 120 ma monitor pd responsivity r pd v rm =5v 10 - 200 a/mw slope efficiency n points measured @ i f = i th + 20 and i th +60 0.084 - - mw/ma thermistor resistance r th t op =25c 9.5 10 10.5 kohm thermistor temp. coefficient tc th t op =25 ? c - -4.4 - %/ ? c tec current i tec -40 datasheet | february 2016 fiber optics | rev 2016.02 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. 1622a/b cwdm dfb laser module rf characteristic laser temperature (tl) = 25 o c, i f =i op , beginning of life (bol) parameter symbol condition min typ max unit frequency range f - 5 - 1002 mhz frequency response s21 iop = 60 ma, 5 - 1002 mhz - - +0.75 db carrier-to-noise ratio cnr - 51 - - db comp. second order cso (1) standard options (1622a) enhanced options (1622b) - - - - -56 -59 dbc dbc composite triple beat ctb (1) 1622a & 1622b - - -65 dbc relative intensity noise rin - - <-155 - db/hz 3.2% omi, 79 ch. ntsc in order to prevent reflection-induced dist ortion, the laser must be connected to an optical cable having a return loss of at least 55 db for discrete reflections and 30 db for distributed reflections. (1) distortion performance assumes 0km dispersion. outline drawing (dimensions are in inches & mm)
datasheet | february 2016 fiber optics | rev 2016.02 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. 1622a/b cwdm dfb laser module electrical schematics pin definitions pin description 1 thermistor 2 thermistor 3 dc laser bias (-) 4 mpd anode (-) 5 mpd cathode (+) 6 thermal electric cooler (+) 7 thermal electric cooler (-) 8 case ground 9 case ground 10 nc 11 laser common (+) 12 laser modulation (-) 13 laser common (+) 14 nc figure 1. 1622 cwdm laser schematic figure 2. 1622 cwdm circuit schematic
datasheet | february 2016 fiber optics | rev 2016.02 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. 1622a/b cwdm dfb laser module ordering code definitions 1622x ? www ? aa ? yyyy ? zz family name analog o-band cwdm dfb, laser cso performance x = a standard performance x = b enhanced performance (cso) frequency plan www = 079: 79 channel ntsc optical connector aa = fc: fc/apc aa = sc: sc/apc center wavelength yyyy = 1291: 1291 nm yyyy = 1311: 1311 nm yyyy = 1331: 1331 nm yyyy = 1351: 1351 nm yyyy = 1371: 1371 nm minimum optical power zz = 04: 4 mw zz = 06: 6 mw zz = 08: 8 mw zz = 10: 10 mw zz = 13: 13 mw zz = 16: 16 mw zz = 20: 20 mw example 1622b-79-sc-1331-10 : cwdm laser, enhanced performance, 79 channel ntsc, sc/apc connector, 1331 nm center wavelength, 10 mw minimum optical power.
datasheet | february 2016 fiber optics | rev 2016.02 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. 1622a/b cwdm dfb laser module laser safety this product meets the appropriate standard in title 21 of t he code of federal regulations (cfr). fda/cdrh class 1 laser product. this device has been classified with the fda/cdrh under accession number 0220191. all versions of this laser are class 1 laser produc t, tested according to iec 60825-1:2014/en 60825-1:2014 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 1 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.
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