2000
Corning Lasertron 2000 Product Guide
Preliminary
30
QLM716
Directly Modulated
DWDM DFB Laser Module
Absolute Maximum Ratings
Laser Element (T = 25°C)
Fiber-coupled optical power (mW)
Forward current (mA)
Reverse voltage (V)
Reverse current (mA)
Monitor Detector (T = 25°C)
Reverse photocurrent (mA)
Reverse voltage (V)
Forward current (mA)
Thermistor
Voltage (V)
Current (mA)
Thermoelectric Cooler
Current (A)
Voltage (V)
Temperature differential (oC)
Package
Storage temperature (oC)
Operating case temperature (oC)
Operating laser temperature (oC)
Lead soldering temperature (oC)
Lead soldering duration (sec)
Fiber yield strength (N)
Fiber bend radius (mm, min)
10
150
2
2
1
15
2
5
2
1.5
2
50
-40 to 85
-15 to 65
15 to 35
260
10
10
30
■Digital transmission up to 2.5 Gb/s
■5 mW rated output power
■Wavelength-selectable from 1526 to 1602 nm
■Fiber span lengths of 100 km
Pin Connections (See page 49 for detailed schematic)
1 Thermistor
2 Thermistor
3 Laser Cathode, DC Bias (-)
4 Monitor Anode (-)
5 Monitor Cathode (+)
6 Cooler (+)
7 Cooler (-)
8 Case Ground, Laser Anode
9 Case Ground, Laser Anode
10 Case Ground, Laser Anode
11 Case Ground, Laser Anode
12 Laser Cathode, RF Modulation
13 Case Ground, Laser Anode
14 Case Ground, Laser Anode
Specifications Contact Corning Lasertron regarding special requirements.
(Tlaser = Tl, Tcase = -15 to 65oC, except as noted)
5
see table
<1
>35
<40
<100
<62
>0.08
<2
25
>2.5
<±1.5
>100
>0.05
<0.15
<±0.5
<1
<2
10
15 to 35
6.5 to 13.1
100
<2
Rated Output Power, Po (mW)
Laser Characteristics
Wavelength (nm)
Spectral width (nm, -20 dB)
Side mode suppression ratio (dB)
Threshold current (mA)
Output power at threshold (µW)
Modulation current (mA)
Slope efficiency (W/A)
Forward voltage (V)
Input impedance (Ohms)
Frequency response, -3 dB (GHz)
Frequency response flatness to 2.5 GHz (dB)
Monitor Photodiode Characteristics
Monitor current at Po (µA)
Monitor responsivity (A/W)
Monitor dark current (µA)
Tracking error relative to 25oC (dB)
Thermoelectric Cooler Characteristics
Current (A)
Voltage (V)
Thermistor Characteristics
Thermistor resistance at 25oC (K Ohms)
Tlaser at Tl (oC)
Thermistor resistance at Tl (K Ohms)
2.5 Gb/s System Performance
Fiber span (km)
Dispersion penalty (dB)
Description
Corning Lasertron QLM716 DFB modules are designed for use in dense wavelength
division multiplexing (DWDM) systems with transmission rates up to 2.5 Gb/s and fiber
span lengths of 100 km. Standard products are defined at the ITU 100 GHz channel
spacings. Modules are also available with any wavelength from 1526 to 1602 nm. These
modules feature the same “miniature optical bench” construction as Corning Lasertron
single-channel QLM3S700, QLM5S710 and WDM QLM715 DFB laser modules for
extremely stable performance over temperature and module lifetime.
QLM5S716 -02xx
2000
Preliminary
Base Model
QLM716 (5 mW, 100 km version)
31
Ordering Information
Product Information/Lasers
Suffix
No Connector
-02xx
FC/PC
-52xx
Channel Frequency Wavelength
Number (THz) (nm)
01 196.4 1526.438
02 196.3 1527.216
03 196.2 1527.994
04 196.1 1528.773
05 196.0 1529.553
06 195.9 1530.334
07 195.8 1531.116
08 195.7 1531.898
09 195.6 1532.681
10 195.5 1533.465
11 195.4 1534.250
12 195.3 1535.036
13 195.2 1535.822
14 195.1 1536.609
15 195.0 1537.397
16 194.9 1538.186
17 194.8 1538.976
18 194.7 1539.766
19 194.6 1540.557
20 194.5 1541.349
21 194.4 1542.142
22 194.3 1542.936
23 194.2 1543.730
24 194.1 1544.526
25 194.0 1545.322
26 193.9 1546.119
27 193.8 1546.917
28 193.7 1547.715
29 193.6 1548.515
30 193.5 1549.315
31 193.4 1550.116
32 193.3 1550.918
33 193.2 1551.721
34 193.1 1552.524
35 193.0 1553.329
36 192.9 1554.134
37 192.8 1554.940
38 192.7 1555.747
39 192.6 1556.555
40 192.5 1557.363
41 192.4 1558.173
42 192.3 1558.983
43 192.2 1559.794
44 192.1 1560.606
45 192.0 1561.419
46 191.9 1562.233
47 191.8 1563.047
48 191.7 1563.863
Channel Frequency Wavelength
Number (THz) (nm)
49 191.6 1564.679
50 191.5 1565.496
51 191.4 1566.314
52 191.3 1567.133
53 191.2 1567.952
54 191.1 1568.773
55 191.0 1569.594
56 190.9 1570.416
57 190.8 1571.239
58 190.7 1572.063
59 190.6 1572.888
60 190.5 1573.714
61 190.4 1574.540
62 190.3 1575.386
63 190.2 1576.196
64 190.1 1577.025
65 190.0 1577.855
66 189.9 1578.686
67 189.8 1579.518
68 189.7 1580.350
69 189.6 1581.184
70 189.5 1582.018
71 189.4 1582.854
72 189.3 1583.690
73 189.2 1584.527
74 189.1 1585.365
75 189.0 1586.203
76 188.9 1587.043
77 188.8 1587.884
78 188.7 1588.725
79 188.6 1589.568
80 188.5 1590.411
81 188.4 1591.255
82 188.3 1592.100
83 188.2 1592.946
84 188.1 1593.793
85 188.0 1594.641
86 187.9 1595.489
87 187.8 1596.339
88 187.7 1597.189
89 187.6 1589.041
90 187.5 1598.893
91 187.4 1599.746
92 187.3 1600.600
93 187.2 1601.455
94 187.1 1602.311
95 187.0 1603.168
96 186.9 1604.026
Part numbers are completed by replacing xx with the channel number from the tables below.
