Showing posts with label WDM. Show all posts
Showing posts with label WDM. Show all posts

OFS published commercially available multimode fiber Laserwave® FLEX WideBand

Innovative fiber optic network equipment and solutions provider of world-class design and production company OFS, on September 21 announced Laserwave® FLEX WideBand multimode fiber reach commercialization. This fiber is designed to meet today's OM4 and next generation short-wavelength WDM (SWDM) applications.

On the basis of the bending LaserWave FLEX 550 (OM4) fiber above, LaserWave FLEX WideBand fiber to meet and fully backward match an existing OM4 requirements, and extends the traditional OM4 multimode fiber supports multi-wavelength capability. Unlike traditional multimode fiber supports 850nm single wavelength transmission, LaserWave FLEX WideBand fiber also supported from 850nm to 950nm wavelength range transport. This causes a single optical fiber multi-channel transmission becomes possible, significantly improving bandwidth capacity multimode fiber, while maintaining up to 300 meters or more short-range applications, the cost advantage. This fiber supports four wavelengths 100Gb/s applications, providing future 400Gb/s or higher speed bandwidth.

OFS product line management and R & D department, senior director Oliviero Mr. Andrew said: "We have been committed to providing the end user to the data center a 400Gb/s transmission and SWDM solutions that solve 400G offers just eight duplex fiber 100Gb/s connection The possibility .WDM technology known in single mode transmission, but recently the use of short-wavelength VCSELs in multimode applications also began to be applied, these applications make SWDM multimode fiber compared to single-mode fiber to maintain a cost advantage of short connection while greatly increasing the overall link capacity.

ROADM market entered a rapid growth period

According to well-known market research firm IHS Infonetics latest report shows that in the optical transmission market, in addition to still maintain a rapid growth outside 100G, ROADM market has become another one star. 2015 second quarter, ROADM market income ratio in the entire WDM market revenue up 45%. The report predicts that, ROADM market in 2015 revenue will grow 12% in 2104, and 2019, the market's compound annual growth rate as high as 12%, which greatly exceeds the entire WDM market compound annual growth rate of 9%, to become the next four years, WDM segment of the market the fastest growing segment.

ROADM market entered a rapid growth period
Figure: Infonetics report ROADM market entered a rapid growth period
As can be seen from the chart IHS Infonetics report, in fact, starting in 2011, ROADM market performance had already started to speed, there's little need to explain that, 100G technology is also starting in 2011 at a global scale commercial. It is a coincidence?

Let's take a look at the status quo of large cities in China, the road to development, and perhaps give us some enlightenment. In recent years, some large cities continue to build and expand roads, often encounter the problem of the transformation of urban interchange. Some design and construction of transportation hub earlier, in the rapid development of today's urban road traffic has become the bottleneck. Similarly, the development of optical networks is also facing a similar situation. With 2011 global begin large-scale commercial 100G coherent optical transmission technology, many operators have seen the super-high-speed optical transmission technology challenge existing optical network architecture, and embarked on a strategy to reshape the optical network architecture project. Therefore, it is not a coincidence, but the optical network development inevitable trend.

Technology and market jointly call new networking technology of optical network


With the rise of Internet penetration to various industries in various fields, as well as cloud computing, big data, networking and other technology applications, data traffic is continuing to grow rapidly. According to IHS Infonetics analytical report 100G module shipments increased from 2011 in 2000 to 2014 or so quickly over 120,000. 100G optical transmission system on a global scale is rapidly expanding. In recent years, the industry has set his sights on Super 100G technology. Alcatel-Lucent deployed the world's first commercial 400G optical transport network in 2013, its 200G wavelength-division-board programmable achieve volume shipments in 2014. According to market analysts predict that by around 2017, 400G will gradually begin large-scale commercial.

You can see from the above data, ultra-high-speed optical transmission technology is rapidly improving the transmission capacity of the fiber, which makes electrical cross-way network to OTN optical network node is facing great challenges. According to the development trend of optical networks, long-distance backbone and metro core network topology often will tend to grid, the dimensions of each node may reach 8-dimensional, or even more. In this case, if pure electric cross 100G OTN networking mode, which means that the capacity of each node will reach 8x8T = 64T. If you consider the way for future 400G OTN network, then the capacity will be close to 200T, which is currently on the market, the largest capacity OTN electrical cross-connect equipment is far unable to meet. Meanwhile, large-scale OTN electrical cross matrix bound to bring higher power requirements and cooling requirements, as well as the difficulty of network evolution challenges operators have realized in the actual deployment of the deployment faced.

Future-oriented development, technology and markets are calling the new Optical Networking technology.

Beijing Jie Wo bring 100G Series debut CIOE 2015

The 17th China Optoelectronic Exposition (CIOE 2015) will be held next Monday the forthcoming opening in Shenzhen, then, 100G high-end optical module manufacturers professional - Beijing Jie Wo debut this year will be special equipment exhibition.

The exhibition, Beijing Jie Wo will be the exhibition site, demonstrating its 10G / 40G / 100G full range of optical modules, and optical communication applications subsystems, including:

- 100G CFP4 / CFP2 / CFP LR4 Transceivers
- 40G MSA 300Pin Transponder, 40G QSFP+ LR4&SR4
- 10G SFP+ Series Transceivers
- 100G SOA, EDFA, OEO, miniaturization WDM subsystems

Meanwhile, Beijing Jie Wo exhibition will also work with industry-leading instrument manufacturers, such as Japan Anristu etc. joint in the field of dynamic business presentation 100G BERT / portable scanner glass instrument and 100G CFP2 / CFP4 optical modules!

OTN development process

Through a new generation OTN G.872, G.709, G.798 ITU-T recommendations are canonical "digital transmission system" and "light delivery system." OTN will solve the traditional WDM networks without wavelength / sub-wavelength service dispatch capability, network capacity is weak, weak protection and other issues.

Optical transport network for IP services, IP transport requirements adaptation service has become an important issue in the further development of optical communication. Optical transport network from a variety of angles and provide a solution compatible with the existing technology in the premise, because the large number of applications SDH equipment, in order to solve the processing and transmission of data services, based on SDH technology developed MSTP equipment and has a large number of applications in the network, it is well compatible with existing technology, but also to meet the transfer function data services. But with the increasing processing power and requires more detailed data services particles, business demand for transport network presented two aspects: on the one hand the transmission network to provide a large pipeline, then generalized OTN technology (in the electric field is OTH, in the optical domain ROADM) provides a new solution that solves the SDH-based cross particles VC-12 / VC4 is small, scheduling more complex issues not meet service delivery needs of large particles, in part, to overcome the WDM System fault location difficult to point to point connection-oriented networking, network capacity is weak, network survivability and ability to provide a means shortcomings weak; on the other hand service optical transport network to propose a more detailed processing requirements, the industry also made a packet transport network solution, the main technologies involved include T-MPLS and PBB-TE and the like.

OTN Network

As network traffic growing demand for bandwidth, operators and system manufacturers have been constantly consider ways to improve service delivery technology issues.

Digital transmission network evolution from the original based T1 / E1 of the first generation of digital transmission network, experienced-based SONET / SDH second generation digital transmission network, to the development in the third generation of OTN-based digital transmission network. First and second generation transport network was originally designed for voice services specifically designed, though can also be used to transmit data and video services, but the transmission efficiency is not high. In contrast, the third-generation transport network technology, from the design to support voice, data and video services to support the bandwidth on demand (BOD) when with other protocols, quality cut of service (QoS) and optical virtual private net (OVPN) and other functions.

In 1998, the ITU Telecommunication Standardization Sector (ITU-T) formally proposed the concept of OTN. From the functional point of view, OTN can be transmitted in the form of all-optical subnet, and the use of light at the boundary of sub - electricity - light conversion. Thus, each subnet can 3R regenerator coupled to constitute a large optical network, as shown in FIG. Therefore, OTN transport network can be seen as the all-optical network evolution process of a transition application.

In the OTN functional description, the optical signal is wavelength (or center wavelength) to characterize. Optical signal processing may be based on a single wavelength, or based on a WDM group. (Based on other optical multiplexing, time division multiplexing, optical time division multiplexing, or optical code division multiplexing OTN, remains to be studied.) OTN can be achieved in the optical domain transfer service signals, multiplexing, routing, monitoring, and to ensure its performance and survivability. OTN can support a variety of top business or protocols, such as SONE / SDH, ATM, Ethernet, IP, PDH, Fibre Channel, GFP, MPLS, OTN virtual concatenation, ODU multiplexing, is the ideal foundation for future network evolution. More and more operators worldwide start constructing a new generation of OTN-based transport networks, systems manufacturers have also introduced a more OTN features of the product to support building the next generation transport network.

WDM and SDH difference?

SDH, called "digital synchronization sequence", mainly used for drop multiplexing E1 (2M), E3, T3, STM-1 ~ STM-64 and other ranking data transmitted. And it can be various types of data such as: ATM, E1, FE, GE and other types of data transmission unified package, compatibility strong;WDM, called wavelength division multiplexing system with DWDM and CWDM points, primarily distinguished by the frequency of the light wave signals of different channels used to transmit signals, which can carry include transmission SDH, FCOM, GE and other large particles of business, Mainly used for inter-provincial and provincial transport network.

IHS Infonetics released first quarter 2015 report on the optical networking market

Market research firm IHS Infonetics recently released the first quarter of 2015 optical network hardware market research reports.

According to the report, thanks to a return to growth in EMEA and Japan large-scale deployment of 100Gbps equipment, in the first quarter year on year market, including WDM and SONET / SDH, including the entire optical network hardware growth of 5%, the total amount of $2.7 billion. WDM equipment to achieve growth of 9% growth for 11 consecutive quarters.

It reported that optical networking market in EMEA EMEA consecutive year of growth in the second quarter, which represents a long-term stagnation in this area optical networking market is finally over. Alcatel-Lucent EMEA market's biggest suppliers.

The report also noted that the Internet content provider ICP procurement has accounted for 10% of the North American optical networking market continues to be a hot optical networking market. For Internet companies need to adjust the product line has become a must-ray equipment companies.

Infonetics market analyst Andrew Schmitt pointed out that the focus of the optical networking market is shifting to the metro. More manufacturers have introduced equipment for the metro market and gradually volume production. Traditional telecom operators and emerging data center operators to deploy 100G Metro devices will be faster. Alcatel-Lucent, Ciena, Cisco, Huawei and Infinera 100G will be the biggest beneficiaries of the market.

Also, according to C114's report, the report is expected in 2015 annual WDM market will reach $11 billion by 2019 this figure will increase to $15.3 billion, accounting for 97% of the entire optical networking market. In the first quarter, Huawei, Alcatel-Lucent, Ciena three occupy the top three positions optical networks. Which, thanks to large-scale global deployment of 100G OTN, Huawei's optical network of strong revenue growth of 20% in the fourth quarter rolling market share to 22.3% for 6 years ranked first in the world and in the Asia Pacific (APAC), Europe, Africa and the Middle East (EMEA), China and the US in Latin America (CALA) region with 36.2% of the market respectively, 25.1%, 20.7% of the share are ranked first.

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