nec's cw ingaasp mqw dfb laser diode module for dwdm applications (20 mw min) nx8562 series features ? available for dwdm wavelengths based on itu-t recommendations (100 ghz grid) refer to the ordering information ? output power: p f = 20 mw min ? internal thermoelectric cooler and isolator ? hermetically sealed 14-pin butterfly package ? polarization maintain fiber pigtail nec's nx8562 series are a 1550 nm multiple quatum well (mqw) distributed feed-back (dfb) laser diode with polar- ization maintain fiber (pmf). this device is designed as a continuous wave (cw) light source and is ideal for optical transmission systems in which external modulators are used. the device is available for dense wavelength division multi- plexing (dwdm) wavelengths based on itu-t recommenda- tions, enabling a wide range of applications. description notes: 1. available for dwdm based on itu-t recommendations. please refer to ordering information. 2. polarization state of ld is aligned parallel to the slow axis. part number nx8562 series symbols parameters and conditions units min typ max t set laser set temperature c20 35 v f forward voltage, p f = 20 mw v 1.2 1.5 if forward current, pf = 20 mw ma 120 167 i th threshold current ma 20 40 p f optical output power from fiber, i f = 167 ma, t ld = t set mw 20 p peak emission wavelength 1 , p f = 20 mw, cw, nm 1527.99 itu-t 1 1611.78 t ld = t set ? v spectral line width, p f = 10 mw, cw, 3 db down mhz 1 2 smsr side mode suppression ratio, p f = 20 mw, cw db 33 45 r in relative intensity noise, p f = 20 mw, 20 mhz to 3 ghz db/hz -150 ext polarization extinction ratio 2 , p f = 20 mw, cw db 20 electro-optical characteristics (t ld = 25 c, t c = -20 to +70 c) california eastern laboratories
nx8562 series part number nx8562 series symbols parameters and conditions units min typ max i m monitor current, p f = 20 mw, v r = 5 v a 100 2000 i d dark current, v r = 5 v na 10 1 tracking error, i m = const. db 0.5 electro-optical characteristics (applicable to monitor pd: t ld = 25 c, t c = -20 to +70 c) p f (mw) t ld = t c = 25 c (at p f (25 c) = 20 mw) t ld = 25 c, t c = -20 to +70 c 10 0 p f i m i m note: 1. = 10 log p f 20 mw absolute maximum ratings 1 (t c = 25 c, unless otherwise specified) symbols parameters units ratings i f forward current of ld ma 300 v r reverse voltage of ld v 2.0 i f forward current of pd ma 10 v r reverse voltage of pd v 20 t c operating case temperature c -20 to +70 t stg storage temperature c -40 to +85 t sld lead soldering c 260 temperature (10 s) note: 1. operation in excess of any one of these parameters may result in permanent damage. part number nx8562 series symbols parameters and conditions units min typ max r thermistor resistance k ? 9.5 10.0 10.5 bb constant k 3350 3450 3550 i c cooler current, ? t = 70 - t set , p f = 20 mw a 1 v c cooler voltage, ? t = 70 - t set , p f = 20 mw v 2 electro-optical characteristics (applicable to thermistor and tec: t ld = 25 c, t c = -20 to +70 c)
nx8562 series typical performance curves (t c = t set , unless otherwise specified) longitudinal mode wavelength (nm) relative intensity (db) 10 0 -10 -20 -30 -40 -50 -60 -70 1540 1550 1560 30.0 25.0 20.0 15.0 10.0 5.0 0 04080 120 160 200 120 100 80 60 40 20 0 0 0.4 0.8 1.2 1.6 2.0 2.4 24.0 20.0 16.0 12.0 8.0 4.0 0 0 0.2 0.8 1.2 1.6 2.0 025 50 75 50 30 20 10 5 3 2 1 optical output power from fiber vs. forward current forward current, i f (ma) optical output power from fiber, p f (mw) forward current vs. forward voltage forward voltage, v f (v) forward current, i f (ma) optical output power from fiber vs. monitor current optical output power from fiber, p f (mw) monitor current, i m (ma) thermistor resistance vs. ambient temperature ambient temperature, t a ( c) thermistor resistance, r (k ? )
ordering information wavelength code itu-t 1 wavelength frequency wavelength code itu-t 1 wavelength frequency (nm) (thz) (nm) (thz) 279 1527.99 196.20 287 1528.77 196.10 295 1529.55 196.00 303 1530.33 195.90 311 1531.11 195.80 318 1531.89 195.70 326 1532.68 195.60 334 1533.46 195.50 342 1534.25 195.40 350 1535.03 195.30 358 1535.82 195.20 366 1536.60 195.10 373 1537.39 195.00 381 1538.18 194.90 389 1538.97 194.80 397 1539.76 194.70 405 1540.55 194.60 413 1541.34 194.50 421 1542.14 194.40 429 1542.93 194.30 437 1543.73 194.20 445 1544.52 194.10 453 1545.32 194.00 461 1546.11 193.90 469 1546.91 193.80 477 1547.71 193.70 note: 1. the value which omitted and computed the 3rd place below the decimal point. nx8562 series 485 1548.51 193.60 493 1549.31 193.50 501 1550.11 193.40 509 1550.91 193.30 517 1551.72 193.20 525 1552.52 193.10 533 1553.32 193.00 541 1554.13 192.90 549 1554.94 192.80 557 1555.74 192.70 565 1556.55 192.60 573 1557.36 192.50 581 1558.17 192.40 589 1558.98 192.30 597 1559.79 192.20 606 1560.60 192.10 614 1561.41 192.00 622 1562.23 191.90 630 1563.04 191.80 638 1563.86 191.70 646 1564.67 191.60 654 1565.49 191.50 663 1566.31 191.40 671 1567.13 191.30 679 1567.95 191.20 687 1568.77 191.10 table a: dwdm wavelength based on itu-t recommendations (@t ld = tset) ba nx8562 with fc-pc connector w avelength code: refer to tables a and b lb: anode ground lf: anode floating
wavelength code itu-t 1 wavelength frequency wavelength code itu-t 1 wavelength frequency (nm) (thz) (nm) (thz) 695 1569.59 191.00 704 1570.41 190.90 712 1571.23 190.80 720 1572.06 190.70 728 1572.88 190.60 737 1573.71 190.50 745 1574.54 190.40 753 1575.36 190.30 761 1576.19 190.20 770 1577.02 190.10 778 1577.85 190.00 786 1578.68 189.90 795 1579.51 189.80 803 1580.35 189.70 811 1581.18 189.60 820 1582.01 189.50 828 1582.85 189.40 836 1583.69 189.30 845 1584.52 189.20 853 1585.36 189.10 862 1586.20 189.00 870 1587.04 188.90 878 1587.88 188.80 887 1588.72 188.70 895 1589.56 188.60 4904 1590.41 188.50 912 1591.25 188.40 921 1592.10 188.30 929 1592.94 188.20 937 1593.79 188.10 946 1594.64 188.00 954 1595.48 187.90 963 1596.33 187.80 971 1597.18 187.70 980 1598.04 187.60 988 1598.89 187.50 997 1599.74 187.40 6006 1600.60 187.30 6014 1601.45 187.20 6023 1602.31 187.10 6031 1603.16 187.00 6040 1604.02 186.90 6048 1604.88 186.80 6057 1605.74 186.70 6066 1606.60 186.60 6074 1607.46 186.50 6083 1608.32 186.40 6091 1609.19 186.30 6100 1610.05 186.20 6109 1610.92 186.10 6117 1611.78 186.00 table b: dwdm wavelength based on itu-t recommendations (@t ld = tset) note: 1. the value which omitted and computed the 3rd place below the decimal point. nx8562 series
nx8562 series outline dimensions (units in mm) optical fiber dimensions (units in mm) #7 #1 #8 cooler + - pd ld thermistor l #14 optical fiber (pmf) length : 1000 min 29.970.25 0.3 1.0 5.15 0.5 20.830.25 26.040.25 15.24 71 814 2.54 20.8 2.67 4 places 1.25 0.9 r 10 min 8.890.13 12.70.2 6.0 8.20.2 5.4 nx8562lb top view 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 com p ound semiconductor devices, ltd . 04/02/2003 fiber length: 1000 mm min pmf fc-pc connector pin no. function pin no. function 1 thermistor 8 gnd 2 thermistor 9 gnd 3 bias 10 gnd 4 pd anode 11 gnd, ld anode 5 pd cathode, 12 signal input 6 cooler anode 13 gnd 7 cooler cathode 14 gnd pin connections #7 #1 #8 cooler + - pd ld thermistor l #14 r nx8562lf top view pin no. function pin no. function 1 thermistor 8 gnd 2 thermistor 9 gnd 3 ld cathode 10 pd ( p ) anode 4 pd (p f ) anode 11 ld anode 5 pd cathode 12 ld cathode 6 cooler anode 13 ld anode 7 cooler cathode 14 nc pin connections paramter unit specification outer diameter mm 0.9 0.1 minimum fiber bending radius mm 30 fiber length mm 1000 min
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