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| 型號(hào)： | A1751A |
| 英文描述： | A1751A DWDM Analog Forward-Path or Return-Path Laser Modules |
| 中文描述： | A1751A DWDM技術(shù)模擬轉(zhuǎn)發(fā)路徑或返回路徑激光模塊 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大小： | 85K |
| 代理商： | A1751A |
A1751A DWDM Analog
Forward-Path or Return-Path Laser Modules
Data Sheet, Rev. 4
June 2001
Features
I
Higher temperature rating
I
Excellent linearity
I
Standard ITU wavelengths
I
Advanced analog chip design
I
Tested for forward and return path applications
I
Reduces equipment requirements in the hub
I
Exceeds Telcordia Technologies* 468 specifica-
tion.
Applications
I
Node capability
I
Narrow transmitter housing
I
Networks with limited fiber
I
Architectures using separate optical wavelengths
to carry targeted services
* Telcordia Technologiesis a trademark of Telcordia Technologies,
Inc.
Description
The A1751A laser module is a dense wavelength-
division multiplexing (DWDM) laser for analog appli-
cations. It features a distributed-feedback (DFB) chip
that has been designed specifically for radio fre-
quency (RF) applications. The A1751A laser module
has a wide temperature range for reliable perfor-
mance in harsh node environments and narrow
transmitter designs. It also features low adiabatic
chirp to maximize signal quality in short and long
lengths of fiber. The laser’s excellent inherent linear-
ity minimizes degradation of the broadcast signals
caused by the quadrature amplitude modulation
(QAM) channels.
Wavelength-division multiplexing is being designed
into cable television architectures. DWDM, a method
for delivering targeted QAM signals to different loca-
tions, allows multiple signal sets to be combined onto
a single strand of fiber for transmission from a head-
end to a hub. At the hub, individual QAM signals can
be selected and combined with broadcast analog
channels. The versatile A1751A DWDM laser module
reduces cable network architecture fiber needs and
lessens equipment requirements in the hub.
The A1751A is available in a wide range of standard
ITU wavelengths. The lasers are offered as either for-
ward-path (40 MHz—860 MHz) or return-path
(5 MHz—210 MHz) modules.
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