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A three-port filter for a specific wavelength of CWDM whose wavelength channel consists of two lenses and a TFF matched to that specific wavelength. The reflection port of each filter is connected to the common port of the next filter, and the filters are connected through optical fiber connectors, which is a CWDM multiplexer . The principle of CCWDM is to use the input lens to focus the optical signals with wavelengths λ 1, λ 2... λ n on the input fiber onto the first filter; the optical signal with wavelength λ 1 passes through the first filter and is coupled to the optical fiber via the first output lens. In the first output fiber, the optical signal with wavelength λ 1 is separated; the remaining optical signals are reflected from the first glass slide to the next glass slide for optical signal separation; and so on until all signals are separated. The coupling between wavelength channels is realized in the form of straight rays taking a zigzag route. HTF has achieved mass producti...

Optical modules are one of the essential components for data transmission in fibre optic networks. 10G optical modules are widely used in schools, companies and other applications due to their low cost and power consumption. xfp optical modules and SFP+ optical modules are two common types of 10G optical modules, what is the difference between them? Can they communicate with each other? XFP optical module and SFP+ optical module basic introduction XFP is defined by the XFP Multi-Source Agreement (MSA). XFP optical module is a 10G optical module that supports hot-swappable and protocol-independent communication, and can transmit data at 850nm/1310nm/1550nm wavelengths, mainly used in 10G Ethernet, 10Gbit/s Fibre Channel, digital transmission of OC-192, synchronous optical network STM-64, 10Gbit/s Optical Transport Network (OTN) OUT-2 and parallel fibre links. SFP+ is an upgraded version of SFP, defined by the SFP+ Multi-Source Agreement (MSA), the SFP+ optical module is a small, hot-sw...

QSFP 40G LR4 optical module is widely used in 40G network, it includes two types of QSFP 40G LR4 CWDM optical module and QSFP 40G LR4 PSM optical module. What are CWDM and PSM? CWDM (Coarse Wavelength Division Multiplexing) refers to coarse wavelength division multiplexing. CWDM is a kind of WDM (wavelength division multiplexing). It can send and receive signals on multiple channels on a single optical fiber. It is usually used in communication networks. point-to-point structured wiring. PSM (Parallel Single Mode Fiber) refers to parallel single-mode fiber technology. Unlike CWDM optical modules that transmit or receive signals on multiple channels on a single fiber, PSM can simultaneously receive and send signals on four parallel fibers. Overview of QSFP 40G LR4 CWDM Optical Transceiver QSFP 40G LR4 CWDM module usually refers to QSFP+ 40G LR4 optical module, which has LC duplex interface, four independent transceiver channels, and each channel supports a rate of 10Gbps. In order to m...