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2
1
Features
s
ESD
PROTECTION
TEC
MPD
R
TH
10 k鈩?@ 25 擄C
Direct-modulated 1310 nm laser module character-
ized for use in 10 Gbits/s operations up to 12 km
Average optical output power, 鈥? dBm typical
Temperature stabilized with internal thermoelectric
cooler (TEC), enabling operation within a wide
temperature range of 鈥? 擄C to +80 擄C
Hermetically sealed optics, isolator on TEC
RF
CHOKE
ISOLATOR
DFB
R
MATCH
45
鈩?/div>
s
s
RF CONNECTOR
1-1157(F)
s
s
s
s
Figure 1. D1861B DML Electrical Schematic
GPO*
RF connector
Single-mode fiber pigtail
High relaxation frequency at low bias
Pin Information
Table 1. Pin Descriptions
Pin No.
1
2
3
4
5
6
7
Description
Thermistor
Thermistor
Laser Cathode (鈥?, dc Bias
1
MPD Anode, (Negative Bias MPD)
MPD Cathode
Thermoelectric Cooler (+)
2
Thermoelectric Cooler (鈥?
Applications
s
s
s
s
SR-1
SONET/SDH low-cost metro applications
High-speed data communications
DWDM equipment drop-side applications
1. Laser anode is case ground mAp-p drive current.
2. A positive current into this pin cools the laser.
*
GPO
is a trademark of Gilbert Engineering Co., Inc.
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SMF-28
is a trademark of Corning Incorporated.
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