Uztelecom or Uzbektelecom in Uzbekistan

Uzbektelecom Signs Contract for Optical Network Upgrade Project

Uzbektelecom JSC (Uzbektelecom) plans to modernize its nationwide optical fiber networks in order to enhance the transmission capacities. The contact has been finalized with the Japan-based Toyota Tsusho Corporation (Toyota Tsusho) and NEC Corporation. The opitcal fiber network updgradatin work will be carried out using the funds provided by the Japan Bank for International Cooperation (JBIC), Nippon Export and Investment…

M-Net use DWDM solution to deliver 500Gbps over a single wavelength

Passive CWDM VS DWDM – Which to choose?

With current industry advancements trend that has equalized costs of transceivers, in a technical battle of CWDM vs DWDM, more advancements are in DWDM. Let’s compare passive CWDM vs DWDM from pure technical application viewpoint: CWDM vs DWDM – Channel Uniformity: As CWDM spectrum for 18 channels spans from 1260nm up to 1620nm compared to DWDM C-band 1530 – 1565…

WDM-wavelength division multiplexing

How Much Do You Know about Multiplexing Technology in Optical Transmission Network?

In optical transmission network, multiplexing technology is considered as an effective means to expand the transmission capacity of existing optical fiber networks. It can increase the transmission capacity of optic fiber in the most cost saving way, so as to quickly meet the increasing demand for high bandwidth. Now, some multiplexing technologies have been widely used and mature in optical…

CWDM (Coarse wavelength division multiplexing)

CWDM Optics: Definition, Types and Standards, Advantages and Applications

With the continuous development of the optical communication industry, CWDM optical module, as a very cost-effective solution for network connection, is widely applied in Gigabit Ethernet and fiber channel applications, etc. However, it seems that there are still people confused about its some knowledge. For example, what is the CWDM optical module? What are the advantages of CWDM optical transceiver?…

qsfp28 cwdm4

Things You Should Know about QSFP28 CWDM4

It’s known that QSFP28 optics play a key part in current 100G Ethernet, in which 2 km 100G QSFP28 CWDM4 stands out. To some degree, its appearance satisfies the requirements for both low cost and long transmission distance in the data center. Today, this article will have an introduction to 100G QSFP28 CWDM4 in these aspects, such as CWDM4 MSA,…

Male-Female and Female-Female Fixed Fiber optic Attenuators

Introduction to Fiber Optic Attenuator

Fiber optic attenuators are often used to control the optical signal strength in fiber optic links. For example, in a DWDM based system, the DWDM employs multiple wavelengths and channels in different communication protocols and bit rates requiring precise tuning of the power levels of the channel signals. Fiber optic attenuators are often used to adjust the optical power signal…