Data Sheet
January 2001
A1112 High-Power 1550 nm DFB Source Lasers
Description
The A1112 1550 nm DFB laser modules are high-
power devices in a 14-pin butterfly package with a
thermoelectric cooler and monitor photodiode. The
lasers are designed to be used in conjunction with
commercially available external modulators for high-
performance analog and digital applications. Agere
Systems Inc. offers modules with 30 mW or 40 mW
output power coupled into polarization-preserving
fiber. The A1112 operates with positive or negative
bias.
Features
s
s
s
s
High fiber-coupled power, 30 mW and 40 mW
Narrow linewidth, <3 MHz
Low relative intensity noise, < –162 dB/Hz
Coupled to polarization-preserving (PANDA-type
fiber)
Applications
s
s
Externally modulated CATV transmitters
Externally modulated analog and digital communi-
cation links
AGERE [ AGERE SYSTEMS ]
