Category Archives: CWDM & DWDM Mux Demux

Fiberstore WDM Solution

WDM Application Overview
Since the advent of optical communications,great technological efforts happen to be dedicated to the exploitation of the large bandwidth of optical fibers.The Wavelength Division Multiplexing (WDM) Techonology is such one of these techonologies.WDM provide high performance multiplexing or de-multiplexing for various of applications. CTC Union WDM product family covers following wavelength windows widely used in optical fiber systems: From 1471nm to 1611nm for CWDM optical communications.The optical multiplexers are utilized to combine signal in the traffic card (single channel transponders or GE Multiplexer) onto a single pair of fiber.The WDM components cash wider operating bandwidth,lower insertion loss,higher power handling,high isolation,etc.(Application diagram see Figure 1.2.3)


Figure 1. WDM Application Digram

local network application

Figure 2.Local Network Application—Access

Local Network Application—Interoffice

Figure 3. Local Network Application—Interoffice

1.Significantly increases the amount of data transmitted over a single fiber (up to 80x)
2.Expands the capacity of the network without laying additional fiber
3.Allows Operators of Storage Area Networks (SANs) and Datacenters to increase bandwidth between sites without
4.leasing additional fiber from carriers
5.Flexibility: each wavelength can carry a different type of data(Ethernet, Fibre Channel, SONET/SDH, etc)
6.Easy to manage

CWDM & DWDM SFP and GBIC Transceivers
WDM transponder

Fiberstore Hot sale WDM Product
CWDM MUX/DEMUX (Coarse Wavelength Division Multiplexer/Demultiplexer) is a flexible and low-cost solution that enables the expansion of existing fiber capacity. Coupled with highly reliable passive optics certified for environmentally hardened applications,the CWDM MUX/DEMUX solution lets operators make full use of available fiber bandwidth in local loop and enterprise architectures.Fiberstore CWDM MUX/DEMUX modules split up to 18 channels (20 nm spaced) to a single fiber.The standard packages are ABS Plastic Box,19″ Rack Mount Chassis and LGX Metal Box.No matter what kind of connectors (such as FC, ST, SC, LC, etc.) are all available,and we can also mix connectors on one device.

4CH CWDM mux single fiber details

Fiberstore DWDM MUX DEMUX with 50GHz/100GHz/200GHz channel spacing can be used to combine or separate wavelength channels at standard ITU grid.The common configuration including 2,4,8,16,24,32,40,44,and 48 channels.These DWDM modules passively multiplex the optical signal outputs from 4 or more electronic devices,and send them over a single optical fiber and then de-multiplex the signals into separate,distinct signals for input into electronic devices at the other end of the fiber optic link. Our standard package types of DWDM MUX DEMUX are Field Module ABS Plastic Box,19″ Rack Mount Chassis and LGX Metal Cassette Box.We also supply custom package to meet customers’requirements.All the DWDM MUX DEMUX modules provide excellent optical performance and high reliability to ease of fiber handling and power saving solution.

16CH DWDM MUX dual fiber details(1)

Fiberstore CWDM SFP Module
The Fiberstore Coarse Wavelength-Division Multiplexing (CWDM) Small Form-Factor Pluggable (SFP)(Figure 1) provides scalable and easy-to-deploy Gigabit Ethernet(GE) and Fibre Channel(FC) services in optical networks.These products enable the design of flexible multiservice networks.The Fiberstore CWDM SFP provides a convenient and cost-effective solution for Gigabit Ethernet and Fibre Channel in campus,data-center,and metropolitan-area access networks.The Fiberstore CWDM SFP solution consists of ten different pluggable transceivers complimented by different CWDM multiplexer/demultiplexer or optical add/drop multiplexers (OADMs).The CWDM SFP transceivers are compliant with the ITU-T G.694.2 standard CWDM grid.


More about Fiberstore’s WDM products and solution,please log in our website:

CWDM/DWDM SFP transceiver for Gigabit Ethernet

The Coarse Wavelength Division Multiplexing (CWDM) SFPs (Small Form-Factor Pluggable) are hot-swappable, transceiver components that you plug into SFP-compatible uplink ports. DWDM  SFP transceivers provide the high speeds and physical compactness that today’s networks require while delivering the deployment flexibility and inventory control that network administrators demand. The Cisco DWDM SFP transceiver allows enterprise companies and service providers to provide scalable and easy-to-deploy Gigabit Ethernet or Fiber Channel services in their networks. Our DWDM SFP transceivers are available in all 100 GHz C-band wavelengths on the DWDM ITU grid. They are designed to Multi-Source Agreement (MSA) standards to ensure broad network equipment compatibility. Our DWDM SFP transceiver has the following features: Up-to 80km over SMF 1Gbps, 100GHz (C-Band) DWDM SFP Transceiver, 0º – 70º Operating Case Temperature, SFF-8724 Digital optical monitoring, Hot-swappable for SFP LC ports, Cisco 90 day standard warranty, Cisco SFP optical module can be covered by SMARTnet, SFP MSA / IEEE Std 802.3, Cisco compact DWDM MUX DEMUX is RoHS compliant. (Fiberstore Transceivers products 10% discount, welcome to choose and buy!)

DWDM SFP transceiver, CWDM SFP
CWDM is a technology that allows for multiple channels, of mixed protocols and data rates, to be COMBINED and transmitted over fiber optic cable.

Where previously additional fiber needed to be run, now existing strands can be more fully utilized, reducing fiber plant expenditures as bandwidth needs increase. Fiberstore’s CWDM SFP transceivers provide scalable intra- and inter-campus connections over fiber links. Eight wavelengths are available in multiple distances enabling substantial bandwidth without running new fiber.

Coupled with Fiberstore’s passive CWDM Mux/Demux or WDM transport systems, the these products reduce the cost of high bandwidth network updgrades.

About Fiberstore

Fiberstore designs, manufactures, and sells a broad portfolio of optical communication products, including passive optical network, or PON, subsystems, optical transceiver modules like CWDM SFP and DWDM SFP which are used in the enterprise, access, and metropolitan segments of the market, as well as other optical components, modules, and subsystems. In particular, Fiberstore products include optical subsystems used in fiber-to-the-premise, or FTTP, deployments which many telecommunication service providers are using to deliver video, voice, and data services.

The global, vertically-integrated business model and expertise in optical design enables Fiberstore to rapidly deliver market-leading, high performance fiber optic components and subsystems. The R&D and engineering teams provide strong innovative capability , who have core technical knowledge ranging from optoelectronic device, optical subassembly, and optical module design, to product and manufacturing process development expertise. With over 200 employees primarily in Dong Guan and ShenZhen, we can serve the customers and distribution partners around the world fast. What’s more, our custom service and wholesale service save customers’ time and money, making customers enjoy personalization.

Related article: How Many Types of SFP Transceivers Do You Know

Reuse technology analysis of optical network

Within optical dietary fiber conversation, multiplexing technologies is actually regarded as prolonged so far as we all know, the capability associated with optical dietary fiber system architectural. FDM as well as WDM usually believe that there’s basically absolutely no distinction in between, to help you believe that WDM is actually “rough”, as well as rate of recurrence department multiplexing is really a “niche”, in order to place both 1 class. Wavelength department multiplexing (DWDM) tend to be talked about beneath, sparse wavelength department multiplexing (CWDM), transplanting multiplexing (higher) along with optical multiplexing technique. 


So-called DWDM (Thick exactly where Department Multiplexing) technologies, is also the folks frequently state how the DWDM, describes a type of optical dietary fiber information tranny technologies, this particular technologies UTILIZES laser beam Wavelength based on little bit parallel tranny collection or even chain information tranny setting within optical dietary fiber tranny.DWDM very first launched the actual optical transmission designated to some specific music group inside the specific rate of recurrence (wavelength, lambda), then your transmission multiplexing right into a solitary dietary fiber, in this manner may significantly boost the bandwidth associated with may be lounging optical cable television. Because of intro (inbound) transmission within optical coating doesn’t quit, the actual price from the user interface as well as platforms may stay impartial, this enables providers in order to DWDM technologies as well as system integration associated with current gear as much as, simultaneously received the present lounging optical cable television didn’t possess to utilize a large amount of bandwidth.DWDM may complement the actual several optical transmission tranny, the outcomes from the optical transmission could be increased to the exact same team simultaneously with just one optical dietary fiber tranny, the actual bandwidth from the system is actually significantly elevated. Every showing indicators could be arranged in order to various tranny price (OC — 3/12/24, and so on. )#) and various platforms (SONET, ATM, information, and so on. )#).The DWDM systems, for instance, could be combined within DWDM depending on OC — forty eight (two. 5 Gbps) as well as OC — 192 (10 Gbps) 2 price associated with SONET transmission. To achieve around forty Gbps associated with large bandwidth. Ownership associated with DWDM program within the over objective simultaneously may nevertheless keep up with the exact same degree of program overall performance and also the current tranny techniques, dependability as well as balance. Long term DWDM fatal may have an overall total in excess of eighty wavelengths much more OC — forty eight in order to two hundred Gbps or even move price is actually up to forty wavelength associated with OC — 192 in order to four hundred Gbps associated with tranny price, the actual bandwidth may be sufficient in order to inside 1 2nd tranny 90000 quantities from the encyclopedia!(Related products inDWDM MUX DEMUX)

2. FDM technologies

FDM may be the gentle surf within optical dietary fiber tranny based on it’s rate of recurrence split in to gentle influx funnel, every funnel because impartial associated with info company. To attain inside a multi-channel multiplexing associated with optical dietary fiber tranny. FDM technologies could be coupled with WDM technologies, help to make the actual recycle method end up being bending, specifically the very first rough factors based on the wavelength associated with gentle influx, when the thickness of every funnel is actually lambda, is at every thickness is actually Δ lambda funnel, in order to fill the actual stations (f1, f2,…,fn), every funnel may also impartial associated with fill info. Simply because coherent optical conversation has an superb selectivity, FDM technologies and it is mixture, produces the actual FDM technologies associated with optical dietary fiber system useful problems. Optical FDM multiplexing technologies gear complicated, the actual overall performance from the optical products need is actually higher, therefore joined the actual phase associated with useful architectural require lots of work.


DWDM (thick wavelength department multiplexing) may be the technologies of preference with regard to dietary fiber optic programs, however it’s costly cost impact it’s broad software. When confronted with marketing communications marketplace need, CWDM (sparse wavelength department multiplexing) occurs in the historical second.Sparse wavelength department multiplexing, just like it’s title suggests, is really a near family member associated with DWDM, the actual distinction primarily offers 2 factors:

3. 1 CWDM company funnel spacing is actually broad, consequently, exactly the same optical materials may recycle wavelength associated with gentle surf close to 5 or even 6, “sparse” as well as “intensive” name in order to that the distinction;

3.2 rain fall submission upon 10-12 CWDM modulation laser beam utilizing uncooled laser beam, laser beam as well as DWDM used is actually awesome. Laser beam air conditioning retreats into heat tuning, uncooled laser beam retreats into digital tuning. Simply because inside a broad wavelength area heat submission is extremely unequal, because of the heat tuning had been very hard in order to put into action, expenses tend to be higher. CWDM eliminates the problem, therefore significantly decreased the price, the actual CWDM program price is just 30% associated with DWDM.(Related products in CWDM MUX DEMUX)

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Four Requirements Promote The Development Of PLC Passive Devices

 The demand of PLC passive optical devices are increasing for information transmission, thus promoting the development of PLC technology, mainly from the four major areas requirements listed below.

1. Pressure From Backbone Network Communication

Broadband subscribers are growing with growth rate of 20-30% per year, average traffic growth per user per year up to 20-30%. It is predicted that in 2014 the average access bandwidth will from the current 2M grow to more than 20M, the growth in business volume flow rate of five years up to 10 times.

Data shows, CTC backbone bandwidth of IP annual growth rate at 40%-50% in next 5 years, the total bandwidth of backbone transmission network will be increased from 64Tbps to at least 120-155Tbps, even 200Tbps. Communication network of pressure have spread to the backbone layer from access layer, and will set off a comprehensive upgrading revolution of the backbone network.

With increasing pressure of backbone network communications, optical networks and transport platform require widely using WDM DWDM. Currently, South Korea’s largest mobile carrier SK Telecom is using DWDM equipment from Nokia Siemens, the use of hiT 7300 DWDM platform, simultaneously transmit 80 channel wavelength, single wavelength can load the 100G data flow, so that the total capacity of the fiber optic is up to 8 Tbps.

In the background of continued growth in new broadband services drive and N x 40Gb / s WDM network scale deployment, new N x 100Gb / s WDM supports a larger transmission capacity gradually become the focus of future high bandwidth technology.

100G WDM market will grow stability in next five years. In January 2013 Dell’Oro optical transmission market forecast report shows, in next five years, the global WDM market will grow at a compound annual rate of 10%, will reach $13 billion by 2017. Dell’Oro said that, 40G/100G will be the future growth; and benefit from the growth in 40G/100G WDM demand, in the next five years the fiber optical networking market will appear a growing momentum. As carriers’ demand is rising on network equipment capacity, 100G market demand will be particularly strong.

The increase amount of information exchange is serious on power consumption reduction, network communication backbone pressure, strong market demand of 100G, all increased the demand of PLC passive components.

2. The Development Of Cloud Data Center

According to Cisco report, over 2011-2016 years, global data center traffic will increase four times, global cloud flow will increase six times. By 2016 there will be 2/3 data center traffic from the cloud service flow. Cloud computing will lead to double flow in data center.

Compared to the traditional data center, a single physical host data flow of cloud computing data center is as 4 times, 8 times or even more than 10 times as the traditional data center server.

In order to reduce the network delay, improve the response speed of data center network, cloud computing data center core network using 40G/100G network port.

3. Access Network – Triple networks convergence of PON Technology

Triple networks convergence are telecommunication networks, radio networks and Internet network developing together, to achieve network interoperability, resource sharing, to provide users voice, data and broadcast television and other services. PON technology products are applied into FTTH and Triple networks convergence. Which WDM-PON PON combines the advantages of WDM technology and and PON structure, is becoming a high-performance access. This intermediate is also widely used PLC splitter products.

4. The Silicon Chip Fiber Interconnection

Microelectronics is facing the challenge of RC bottleneck and heating problems. Chip and chip interconnect speed of 6-8Gbps, 32nm, 22nm, copper and copper interconnect speed of 15nm, 11nm, 7nm. When in 10nm occurs quantum effects, more than 20Gbps require fiber interconnection. For example, Intel Si launched a photonic chip program, chip interconnects using WDM, because the electrical interconnection is expensive, electrical interconnection gradually evolved to fiber interconnection has become an inevitable trend.

In conclusion, the requirements of using fiber transmission instead of electrical transmission, and is a multi-wavelength optical transmission, coherent 100G WDM backbone network, 40G/100G data centers, FTTH access networks, chip optical interconnect have promoted the development of PLC optical passive devices. And the chip will be used in WDM and PLC splitter, integrated chips are more taking into account the size and power consumption requirements, using PLC hybrid integration, SOI silicon photonics, InP PIC integration and other technologies. These requirements will all promote the continuous development and evolution of PLC technology.