The Optical Transport Network (OTN) is a sophisticated network architecture that leverages optical fiber transmission technology to perform essential functions such as optical signal modulation, wavelength conversion, multiplexing, amplification, protocol conversion, monitoring, redundancy backup, and more. OTN is designed to deliver high-capacity, low-latency, long-distance, and reliable data transmission. As OTN continues to evolve with enhanced features and cost advantages for operators through collective procurement, it has found extensive applications in various fields, including metropolitan area network access, 5G wireless communication, data center interconnectivity, enterprise network access, and OLT (Optical Line Terminal) network access.
Key Features of Optical Modules in OTN Applications
1. Wavelength and Intensity Modulation:
– The optical modules must support modulation of the optical signal’s wavelength and intensity. Commonly utilized optical bands in OTN include O-Band, C-Band, CWDM, and gray light.
2. Protocol Compatibility:
– Optical modules need to be compatible with a variety of communication protocols, including 10GBase, 100GBase, 400GBase, OTU2, OTU4, STM64, and eCPRI.
3. Demand for High-Bandwidth Upgrades:
– The industry is seeing a continuous demand for higher bandwidth optical modules. For instance, the QSFP28 is being upgraded to QSFP112, and SFP28 is evolving into SFP56.
4. DDM Monitoring Support:
– Optical modules must include Digital Diagnostic Monitoring (DDM) capabilities for collecting and providing feedback on monitoring information. Certain modules may also need to support adjustable wavelengths and optical power.
Advantages of LANSTIC Optical Modules for OTN Applications
– High-Speed and Diverse Protocol Support:
– LANSTIC optical modules cater to a wide range of protocols, including 10GBase, 40GBase, 100GBase, 400GBase, OTU2, OTU3, OTU4, STM-16, STM-64, STM-128, and eCPRI.
– Variety in Transmission Distances:
– The product range includes optical modules for various transmission distances, from short-range modules suitable for multi mode optical fibers (up to 100m) to gray optical modules covering 2 to 10 km. Additionally, there are DWDM CWDM modules designed for medium (40 km and 80 km) and long distances (up to 120 km) as well as ultra-long-distance coherent optical modules capable of reaching distances of 300 km, 500 km, and even 1000 km.
– Flexible Wavelength Options:
– LANSTIC offers a range of wavelength applications, including C-Band DWDM tunable wavelengths and O-Band DWDM fixed wavelengths, enabling the creation of single-fiber bidirectional BiDi products with customized wavelength combinations, including gray light wavelengths.
– Support for “White Light” Transmission:
– The modules can transmit “white light” without any signal, simplifying the installation and commissioning processes for specific OTN applications.
– Advanced Technological Features:
– Many LANSTIC products include Clock Data Recovery (CDR) functionality, while some leverage the latest PAM (Pulse Amplitude Modulation) technology to enhance performance.
– Cost-Effectiveness:
– LANSTIC achieves a notable cost advantage by selecting core driver chips and laser designs from both international and domestic sources, allowing simultaneous design and production. This strategy provides diverse business options tailored to meet the needs of different customers.
Overall, LANSTIC optical modules play a crucial role in enhancing OTN networks, providing high-speed, reliable, and flexible solutions for a variety of applications.