nec's ingaasp mqw-dfb laser diode in can package for 2.5 gb/s, cwdm applications nx6508 series features ? optical output power p o = 5.0 mw ? peak emission wavelength p = 1 470 to 1 610 nm (based on itu-t recommendations) ? low threshold current i th = 10 ma ? high speed t r = 100 ps max ? side mode suppression ratio smsr = 40 db ? operating case temperature range t c = -20 to +85 c ? ingaas monitor pin-pd ? can package ? 5.6 mm ? based on telcordia reliability nec's nx6508 series are 1 470 to 1 610 nm multiple quantum well (mqw) structured distributed feed-back (dfb) laser diode with ingaas monitor pin-pd. these devices are ideal for 2.5 gb/s cwdm application. description california eastern laboratories preliminary data sheet electro-optical characteristics (t c = -20 to +85 c, unless otherwise speci ed) pa rt number nx6508 series symbols parameter and conditions unit min. typ. max. p o optical output power from fiber, cw mw 5.0 v op operating voltage, p o = 5.0 mw v 1.1 1.6 i th threshold current, t c = 25 cma1020 50 d differential ef ciency p o = 5.0 mw, t c = 25 cw /a 0.18 0.25 p o = 5.0 mw 0.10 d t emperature dependence of differential ef ciency d = 10 log d (@ t c c) d (@ 25 c) db ? 3.0 ? 1.6 p peak emission wavelength, p o = 5.0 mw nm p ? 2 p *1 p +2 / tt emperature dependence of peak emission wavelength, cw nm/ c 0.08 0.1 0.12 smsr side mode suppression ratio, p o = 5.0 mw db 30 40 t r rise time, 20-80%, p o = 5.0 mw ps 100 continued on next page
nx6508 series electro-optical characteristics (t c = -20 to +85 c, unless otherwise speci ed) p art number nx6508 series symbols parameter and conditions unit min. typ. max. t f fall time, 80-20%, p o = 5.0 mw ps 150 i m monitor current, v r = 1.5 v, p o = 5.0 mw a 200 1 000 2 000 i d monitor dark current v r = 1.5 v, t c = 25 cna 0.1 10 v r = 1.5 v 10 100 *1 a vailable available for cwdm wavelengths based on itu-t recommendations p = 1 470, 1 490, 1 510, 1 530, 1 550, 1 570, 1 590, 1 610 nm please refer to t able a . t able a: cwdm wavelength code (@ t c = 25 c) wa velength code min. (nm) typ. (nm) max. (nm) 47 1 468 1 470 1 472 49 1 488 1 490 1 492 51 1 508 1 510 1 512 53 1 528 1 530 1 532 55 1 548 1 550 1 552 57 1 568 1 570 1 572 59 1 588 1 590 1 592 61 1 608 1 610 1 612 symbol parameter unit ratings p o optical output power from fiber mw 10 i f forward current of ld ma 150 v r reverse voltage of ld v 2.0 i f forward current of pd ma 2.0 v r reverse voltage of pd v 15 t c operating case t emperature c -20 to +85 t stg storage temperature c ? 40 to +85 t sld lead soldering t emperature c 350 (3 sec.) rh relative humidity % 85 absolute maximum ratings
nx6508 series p ackage dimensions (units in mm) ordering information wavelength code : refer to table a package code : refer to package dimensions nx6508 xx pin connections 1 (case) 4 3 2 ld pd nx6508gkxx *1 1 (case) 2 3 4 ld pd nx6508ghxx *1 bottom view 1 2 3 4 1.0?.1 p.c.d 15.0?.0 1.2?.1 focal point 3.97?.1 7.5?.0 11 02 0.3 +0.1 -0.0 0.3 +0.1 -0.0 4? 0.45 2.0 5.6 +0.00 -0.03 4.3?.1 3.75?.05 life support applications these nec products are not intended for use in life support devices, appliances, or systems where the malfunction of these prod ucts can reasonably be expected to result in personal injury. the customers of cel using or selling these products for use in such applications do so at their own risk and agree to fully indemnify cel for all damages resulting from such improper use or sale. a business partner of nec compound semiconductor devices, ltd. 05/03/2004
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