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A1750A Datasheet

  • A1750A

  • A1750A DWDM Analog Forward-Path or Return-Path Laser Module

  • 8頁

  • AGERE

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Data Sheet, Rev. 4
June 2001
A1750A DWDM Analog
Forward-Path or Return-Path Laser Module
Description
The A1750A laser module is a dense wavelength-
division multiplexing laser with a DFB chip designed
specifically for analog RF applications. The device
features low adiabatic chirp to maximize signal qual-
ity in short and long lengths of fiber. The laser鈥檚
excellent inherent linearity minimizes degradation of
the broadcast signals caused by the QAM channels.
Wavelength-division multiplexing (WDM) has gained
widespread acceptance in the telecommunications
market and is being designed into emerging cable
television network architectures. Dense WDM, a
method for delivering targeted QAM signals to differ-
ent locations, allows multiple signal sets to be com-
bined onto a single strand of fiber for transmission
from a headend to a hub. At the hub, individual QAM
signals can be selected and combined with broad-
cast analog channels. The A1750A DWDM laser
module reduces cable network architecture fiber
requirements and lessen equipment requirements in
the hub.
The A1750A is available at a variety of standard ITU
wavelengths. The lasers are offered as either for-
ward-path (40 MHz鈥?60 MHz) or return-path mod-
ules (5 MHz鈥?10 MHz).
Features
s
s
s
s
s
s
s
Low adiabatic chirp
Excellent linearity
Standard ITU wavelengths
Advanced analog chip design
Tested for forward-path or return-path applications
Reduces equipment requirements in the hub
Exceeds
Telcordia Technologies*
468 specifica-
tion.
Applications
s
s
Networks with limited fiber
Architectures using separate optical wavelengths
to carry targeted services
*
Telcordia Technologies
is a trademark of Telcordia Technologies
Inc.

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