DWDM – Dense Wavelength Division Multiplexing

Multiple light waves with a low loss window reuse, as opposed to the light waves of different low-loss window Coarse Wavelength Division Multiplexing Multiplexing.

DWDM: Dense Wavelength Division Multiplexing is a combination of a set of light wavelengths using an optical fiber transmission. This is the one used in the existing fiber optic backbone network bandwidth laser technology. More specifically, the technology is close spectral spacing in a specified fiber, multiplexing, a single optical carrier, in order to take advantage of the transmission performance can be achieved (for example, the minimum degree of dispersion or attenuation). In this way, given the information transmission capacity, it can reduce the total number of fiber needed.

In the same fiber, DWDM can have different wavelengths simultaneously mix and transfer. In order to ensure effective, an optical fiber into multiple virtual fiber. So, if you intend to reuse the eight optical carrier (OC), that is, a signal of the optical fibers 48 so that transmission capacity from 2.5Gb / s to 20Gb / s. At present, the use of DWDM technology, a single optical fiber can transmit data traffic to achieve 400Gb / s. With the manufacturers in each fiber by adding more channels, the terabit per second transmission speed is just around the corner.

A key advantage of DWDM is protocol and transmission speed is not relevant. Based on the DWDM network can use the IP protocol, ATM, SONET / SDH, Ethernet protocol to transfer data, processing of data flow between the 100Mb / s and 2.5Gb / s. In this way, the DWDM-based networks in the transmission of a laser channel at different speeds of different types of data traffic. From the point of view of QoS (quality of service), the DWDM-based network to cost-effective way to respond quickly to customer bandwidth demands and protocol changes.

More information from fiber optic products store : Fiberstore

Ethernet to Fiber Media Converter using

Fiber media converter can be used anywhere in the network to integrate newer technology with existing equipment to support new applications, technologies and future growth. Instead of costly, across-the-board upgrades, media converters can extend the productive life of the existing cabling as well as the active equipment.

Fiber media converters, also known as fiber transceivers or ethernet media converters, are simple networking devices that make it possible to connect two dissimilar media types such as twisted pair such as Cat 5 or Cat 6 cable with fiber optic cabling. They are important in interconnecting fiber optic cabling-based systems with existing copper-based, structured cabling systems. Fiber ethernet media converters support a variety of communication protocols including Ethernet, Fast Ethernet, Gigabit Ethernet, as well as multiple cabling types such as twisted pair, multi-mode and single-mode fiber optics. Fiber media converters can connect different Local area network (LAN) media, modifying duplex and speed settings. For example, switching media converters can connect legacy 10BASE-T network segments to more recent 100BASE-TX or 100BASE-FX Fast Ethernet infrastructure. For example, existing Half-Duplex hubs can be connected to 100BASE-TX Fast Ethernet network segments over 100BASE-FX fiber. When expanding the reach of the LAN to span multiple locations, fiber transceivers are useful in connecting multiple LANs to form one large campus area network that spans over a wide geographic area.

Ethernet media converter can increase LAN distance and protect against interference. These Ethernet media converters change Ethernet twisted pair copper wires into fiber optic signals. Fiber optic is impervious to interference and will extend the distance of a network 2km in each segment.

Benefits of Ethernet to Fiber Optic Converters

Protects your investment in existing copper ethernet-based hardware
Provides you with the flexibility to add fiber on a port-by-port basis
Enjoy the benefits of fiber without have to make wholesale changes
Fast ethernet or Gigabit ethernet to multi-mode or single mode
Ethernet to fiber and fiber back to ethernet links
Create copper-fiber connections with fiber switches

Filter WDM Modules – Fiberstore new supplies

We provide filter-based wavelength devision multiplexing (WDM) filter devices that are customized to the particular wavelength bands for your special applications.

Filter WDM module is based on Thin Film Filter (TFF) technology. The Filter-Based WDM is extensively used in EDFA, Raman amplifiers, WDM networks and fiber optics instrumentation. The FWDM series is based on environmentally stable Thin Film Filters technology. The device combines or separates light at different wavelengths in a wide wavelength range. They offer very low insertion loss, low polarization dependence, high isolation and excellent environmental stability.

Our Filter-Based WDM product family covers following wavelength windows commonly used in optical fiber systems: 1310/1550nm (for WDM or DWDM optical communications), 1480/1550nm (for high-power DWDM optical amplifier/EDFA), 1510/1550nm (for DWDM multi-channel optical networks) and 980/1550nm (for high performance DWDM optical amplifier/EDFA) and 1310/1490/1550nm (for PON/FTTX/test instrument)

Single Mode Filter WDM Module

1310/1550nm Filter WDM Module
It separates or combines 1310nm and 1550nm optical signals. It enables the bi-directional communication using one single fiber.

1480/1550nm Filter WDM Module (Pump WDM)
It separates or combines pump laser and optical signals. It is used for C-band EDFA.

C Band Red/Blue Filter WDM Module
It separates or combines Red band wavelength signals and Blue band wavelength signals in C band range in DWDM systems.

C Band Supervisory Filter WDM Module
It separates or combines 1500~1563nm and 1529~15nm optical signals in fiber optics Amplifiers system.

C & L Band Filter WDM Module
It separates or combines C band wavelength signals and L band wavelength signals in DWDM systems.

L Band Red/Blue Filter WDM Module
It separates or combines Red band wavelength signals and Blue band wavelength signals in L band range in DWDM systems.

L Band Supervisory Filter WDM Module
It separates or combines 1620~163nm and 1570~1605nm optical signals in fiber optics Amplifiers system.

1510nm Drop WDM Module
It separates or Combines 1510+/-7nm from 1260~1620nm wavelength signals in optical systems.

Multi Mode Filter WDM Module

850/1310nm Filter WDM Module
It is used interference filter technology to separate or combine 850nm and 1310nm optical signals. It is used in multi-mode fiber communication, CATV and testing instrumentation.

1310/1550nm Filter WDM Module
It is used interference filter technology to separate or combine 1310nm and 1550nm optical signals. It is used in multi-mode fiber communication, CATV and testing instrumentation.

Triplexer Filter WDM Module

1. PON Filter WDM Module
1310/1490/1550nm filter WDM module used single fiber triple operation wavelength transmission technology, the 1550nm wavelength is used for downstream analog CATV, the 1310nm wavelength is used for the upstream transmission to a large number of end users, the 1490nm wavelength is use for digital downstream transmission.

2. Network Test and monitor Filter WDM Module
1310/1550/1625nm (1310/1550/1650nm) filter WDM Module enables non-intrusive testing of any fiber path on a Remote Fiber Test System. This capability is ideal for testing active fibers in service.

3. 1310/1490/1550/1625nm Filter WDM Module
1310/1490/1550/1625nm FilterWDM Module is used to combine or separate 1625nm channel with three triplex wavelength 1310nm, 1490nm and 1550nm. Using this device, 1625nm channel can be added into the existing triplex FTTH system.

Besides Filter WDM Module, We also offer CWDM Module and DWDM Module for your applications.

SC connector, SC Fiber Optic Connector

Fiber Optic connector has been widely used in fiber optic transmission lines, fiber optic patch panels and fiber-optic test instruments and meters. The Fiber Connector is one of the most essential components for fiber optic communication. It mate or connect with optical devices, modules, and fibers. Fiber connector is also the key part used in fiber Patch cord and fiber Pigtail.

SC fiber products are commonly seen and SC fiber optic connectors are found on many equipment and cable assemblies. SC fiber optic connector features its easy operation, good accuracy and low cost. Below is a drawing for the simplex SC fiber optic connector.

SC fiber optic connector is a snap-in connector also with a 2.5 mm ferrule that is widely used for it’s excellent performance. It was the connector standardized in TIA-568-A, but was not widely used at first because it was twice as expensive as a ST fiber optic connector. Now it’s only a bit more expensive and much more common. It’s a snap-in connector that latches with a simple push-pull motion. It is also available in a duplex configuration.

Fiberstore offer all types fiber optic connector. The types of SC connector have: SC/UPC connector and SC/APC connector with single-mode and multimode types. They are fully compliant to the TIA/EIA-568A and Fibre Channel standards, Fiberstore SC fiber products are competitive price and good reliability.

Cisco 100Base SFP compatible optical module on Fiberstore

FiberStore offers cost-effective standards-based compatible cisco SFP Transceivers. As a 3rd party OEM manufacturer, our Cisco SFP transceiver is delivered to worldwide from our factory directly. All of our Cisco SFP module are tested in-house prior to shipment to guarantee that they will arrive in perfect physical and working condition.

Our comaptible cisco module includes: multimode optical modules GLC-SX-MM; Single-mode optical module GLC-LH-SM, GLC-ZX-SM; SFP copper module GLC-T; DWDM/CWDM SFP; 2.125G SFP transceiver module; 100Base SFP module; BIDI SFP optical transceiver; SFP with DDM transceiver such as SFP-GE-S .

Cisco 100Base SFP compatible optical module on Fiberstore

GLC-FE-100LX SFP single-mode optical module (1310nm-125Mb/s-10KM-LC)
Of GLC-FE-100FX performs the the SFP multi-mode optical module (1310nm-125Mb/s-2KM-LC)
GLC-FE-100EX SFP single-mode optical module (1310nm-125Mb/s-40KM-LC)
GLC-FE-100ZX SFP single-mode optical module (1550nm-125Mb/s-80KM-LC)

Connect us : www.fiberstore.com

Phone/Fax Numbers:
Direct Line: 86-755-83003611
Fax: 86-755-83269395
Email Address
Sales: sales@fiberstore.com
Service Support: service@fiberstore.com
Corporate Address:
FIBERSTORE CO., LIMITED
5-D Inteligent Tower, Fumin Rd.,
Futian District, Shenzhen 518045, China

Cisco 2.125G SFP comptaible optical modules

FiberStore is an professional manufacturer & supplier of transceivers. All of our transceivers are tested in-house prior to shipping to guarantee that they will arrive in perfect physical and working condition. We guarantee transceivers to work in your system and all of our transceivers come with a lifetime advance replacement warranty.

Cisco 2.125G SFP comptaible optical modules

DS-SFP-2G-FC-SW 1/2G the SFP multi-mode optical module (850nm-2.125Gb/s-550M-LC)
DS-SFP-2G-FC-LW 1/2G SFP single mode optical module (1310nm-2.125Gb/s-10KM-LC)
DS-SFP-2G-FC-ZW 1/2G SFP single-mode optical module (1550nm-2.125Gb/s-80KM-LC)/s-80KM-LC)

Connect us : www.fiberstore.com

Phone/Fax Numbers:
Direct Line: 86-755-83003611
Fax: 86-755-83269395
Email Address
Sales: sales@fiberstore.com
Service Support: service@fiberstore.com
Corporate Address:
FIBERSTORE CO., LIMITED
5-D Inteligent Tower, Fumin Rd.,
Futian District, Shenzhen 518045, China

Difference between LC/APC connector and SC/APC connector

The difference between LC/APC connector and SC/APC connector

Firstly

The appearance different,though their all in Inserted pin bars type ,LC/APC, is half smaller than SC/APC.

LC/APC uses a 1.25mm ferrule
SC/APC uses a 2.5mm ferrule
As a result the LC/APC will enable you to have 2x the density of SC.

Sencondly

For now, the SC/APC connector is hot than LC/APC, as LC connector in high cost and technic than SC. FTTx the market is more familiar with SC/APC. Main reasons are that it is a well proven design, more rugged construction, lower cost due to Volume manufacture, additionally more innovations are based around SC for the FTTx market.

LC will get better & cheaper, but today the SC is the common choice. Unless of course you are stuck for space (For example on your active equipment).

Other voice

SC/APC and LC/APC should achieve the same performance if they are designed and manufactured to meet the specs. LC presents some challenges for craft interaction on high density frames, but connectors meeting recognized specs like IEC or the Telcordia GR-326 will perform as expected…-65dB or better for return loss should be no problem. Note that GR-326 does allow a slightly reduced load to be used for LC connectors during Transmission With an Applied Load (TWAL).

Regarding connectors made using G657 fiber, we have tested many here at Telcordia against GR-326 from various suppliers. The only consistent issue we see is with excessive fiber recess (>100nm) after environmental exposures. In most cases this is easily resolved by modifying the epoxy prepration, epoxy curring, and the polishing process. Otherwise, we have seen very good performance from connectorized G.657 drops cables and jumpers used in FTTH applications.

This infromation from fiber optic communication store