The Development Of Optical Communications Test Technology Enabled Test Equipment Market

Optical communication technology in recent years

, major trends, including increased capacity to further intelligent, carrier-class optical transport and Ethernet FTTH, etc., and the development of phase synchronization of these technologies, optical communications test technology is developing rapidly.

Optical communications industries rely heavily on market-driven, but also must rely on technology to support. Optical communication technology in recent years, major trends, including increased capacity to further intelligent, carrier-class optical transport and Ethernet FTTH, etc., involving technical standards include DWDM, ASON, GPON, EPON and so on. And the development of these technologies with synchronization, optical communications test technology is developing rapidly.

Birth of a new large-capacity test instrumentation

As technology progress and business development, WDM technology is the field from long-distance transmission expansion to the metro area for the field of WDM metro system called the Metro WDM system. Low-cost Metro WDM system is the most important features. As the MAN distance usually not more than 100 km long-distance network and therefore must use the external modulator and optical amplifier could be omitted. And since that savings fall out amplifiers, wavelength increase and expand the number of optical amplifier bandwidth is no longer subject to the restrictions, you can allow the use of a wide wavelength interval, wavelength accuracy and stability require lower light source, combiner, beam splitter and other components, which makes components, especially the cost of a significant decline in passive components, thereby reducing overall system cost.

In WDM technology continues to advance the process, the major test instrument manufacturers have also introduced an innovative test for WDM devices.

U.S. Optellent launched small 10Gbit / s error detector OptoBERT series, the model for the OPB-X110. The product is very compact structure in place of the reference clock, signal format generator, clock recovery circuit and the bit error analyzer, a flexible user interface, with 10Gb / s optical interfaces and electrical interfaces to meet the device, modules and subsystems for the development, production testing needs, and can work in the field installation and fault location environments.

However, due to P2P applications, represented by the emerging popularity of the Internet, IP traffic continued to increase rapidly, currently 10Gbit / s WDM-based long distance network showing a powerless state, some paragraphs 80 10Gbit / s capacity has been used, therefore, to 40Gbit / s WDM system based on the application on the agenda. Its main advantages include higher spectral efficiency, transport costs are lower, OAM, low cost, complexity and a small number of spare parts, can effectively reduce the number of IP links, the node structure to improve scalability, improved efficiency and the core network functions.

Addition to market factors, the impact of 40Gbit / s applications, the main factor is technology, price, and the polarization mode dispersion fiber cable (PMD). From a technical point of view, 40G system after so many years of continuous improvement, technology has made great strides. A variety of active and passive components in large numbers, the cost of rapid decline. Power flatness of various devices, nonlinear, chromatic dispersion, polarization mode dispersion performance was improved, so that the power system redundancy requirements can relax. In particular, DQPSK / DP-QPSK modulation, electronic dispersion compensation and super-band FEC coding and a series of breakthroughs and new technologies mature, cost-effective improvements for the long-distance applications to provide a solid foundation.

Polarization mode dispersion on optical properties, the recent findings suggest that China Telecom, China's Beijing-Guangzhou line east of the region's most laid the polarization mode dispersion properties of fiber optic cable can basically meet the 40Gbit / s transmission requirements, the cable Polarization mode dispersion properties of the application is no longer a major obstacle.

Therefore, 40Gbit / s transmission equipment, test equipment market is active. EXFO IQS-600 Integrated launch certification system, to offer the highest 40Gbit / s devices and system testing.

The system is taking into account the R & D and manufacturing of highly modular test platform, integration of various optical transmission and several According to Communications test instrument on the PC control platform in support of automatic test function, no external computer can run automation software and a variety of extended protocol command. It also can remotely monitor the testing process, support for RAID performance, real-time data mirroring.

The Development Of Optical Communications Test Technology Enabled Test Equipment Market

By: dpdp

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