Fiber Optic Wiki

SONETnetwork management protocols

September 20, 2011

SONET equipment is often managed with the TL1 protocol. TL1 is a traditional telecom language for managing and reconfiguring SONET network elements. TL1 (or whatever command language a SONET Network Element utilizes) must be carried by other management protocols, including SNMP, CORBA and XML.

Network architectures

September 20, 2011

Currently, SONET (and SDH) have a limited number of architectures defined. These architectures allow for efficient bandwidth usage as well as protection (i.e. the ability to transmit traffic even when part of the network has failed), and are key in understanding the almost worldwide usage of SONET and SDH for moving digital traffic. The three main architectures are:

CMOS 10G integrated optical receiver

September 17, 2011

SiFotonics Technologies Co. Ltd., a supplier of optical communications components based on the Silicon Photonics technology platform, introduces the TP1501 CMOS-based integrated optical receiver for optical communication applications.

Enhanced 10/40/100G optical channel monitor

September 17, 2011

BaySpec Inc., a supplier of optical modules and subsystems for agile fiber-optic networks, has released an enhanced version of its Optical Channel Performance Monitor (OCPM) compatible with 10/40/100GHz modulation schemes.

100G DWDM modulator driver order

September 17, 2011

GigOptix, Inc.says it has received a purchase order from a Tier 1 customer worth $750,000 for its 100-Gbps GX62450 dual-polarization quadrature phase-shift keying (DP-QPSK) quad modulator driver. The driver will be used in a 100-Gbps DWDM system. The order will be delivered in the second and third quarters of 2011, GigOptix says.

TCA-1000 SmartLight Tunable ASE Source for 40G signal emulation

September 17, 2011

General Photonics has announced general availability for its TCA-1000 SmartLight tunable amplified spontaneous emission (ASE) source with 50-GHz channel spacing on the ITU grid. The fully polarized light source features a FWHM bandwidth of 0.3 nm. The TCA-1000 SmartLight is designed to emulate a 40-Gbps signal for polarization mode dispersion (PMD) effect tests, in-service link PMD measurement, PMD compensator evaluation, WDM channel testing, 40G system testing, and 40G optical component testing.

|< < .... 100 101 102 103 104 105 106 107 108 109 110 .... > >|

Showing 625 to 630 of 1106 (185 Pages)