This 4 Channel Compact CWDM MUX (CCWDM Multiplexer) has achieved a significant breakthrough in package size. Its volume is much smaller than that of standard CWDM equipment, with the package size being approximately 10 times smaller than standard CWDM. Specifically, the package size of the 4-channel version is only L110xW95xH7.5mm. This ultra-small size design greatly saves installation space. Whether it is in the dense cabinets of telecom computer rooms or the limited equipment layout areas of data centers, it can be easily integrated, effectively improving space utilization and providing greater flexibility for the overall layout of equipment.

This multiplexer has excellent low insertion loss performance, with a typical insertion loss as low as 0.8dB. Low insertion loss means that during signal transmission, energy loss is greatly reduced, which can effectively avoid problems such as shortened transmission distance and degraded signal quality caused by signal attenuation. This feature enables it to play a stable role in long-distance telecom transmission links and data center internal interconnection scenarios that have extremely high requirements for signal stability, ensuring efficient and clear transmission of data and voice signals.

In terms of design, this multiplexer focuses on energy-saving performance. By optimizing the internal circuit structure and selecting low-power components, it effectively reduces the energy consumption during equipment operation, conforming to the current industry development trend of green environmental protection. At the same time, the equipment has extremely high stability and reliability, and can operate continuously and stably in complex working environments. Whether facing temperature fluctuations, voltage changes, or long-term high-load operation, it can maintain good performance, reduce the probability of equipment failure, and lower operation and maintenance costs.

With its excellent performance and flexible design, this 4-channel compact CWDM multiplexer has a wide range of application scenarios and can meet the needs of different industries. In the telecom field, it can be used for signal multiplexing and transmission in backbone networks and metropolitan area networks, improving network bandwidth utilization. In the data center field, it is suitable for interconnection between servers and storage devices, inside data centers, and between multiple data centers, supporting high-speed exchange of large-scale data. In addition, it can also be applied to enterprise campus networks, security monitoring transmission systems and other scenarios, providing strong support for the construction of communication networks in various industries.

• Lower insertion Loss

  Lower insertion loss makes CCWDM module have lower signaattenuation in operation, thus reducing the power requirement ofsignal transmitter.

• High lsolation

  The higher isolation value enables sufficient signal isolation duringmulti-signal transmission in the CcWDM module, effectivelypreventing crosstalk between signals and causing distortion of thetransmission signal.

• Mature Production Process

  The CCWDM module of HJY has mature production technology,stable and reliable performance, supports the work in the harshenvironment of -40~+85 'C,and ensures the stable transmissionof signals.

*Above specification are for device without connector.

The CCWDM Mux adopts Free-Space technology, which uses light propagating in free space to wirelessly transmit data. Inside the device, adjacent signal channels are cascaded by parallel beam instead of the fiber. This saves a lot of space for package box, and the unique workmanship also helps CCWDM Mux Demux with low insertion loss.

The insertion loss of CCWDM Mux is about half of the conventional CWDM Mux. This reduces the overall loss of the whole link, and leaves more choices for the design of the solution.

CCWDM Mux uses the parallel beam for cascading instead of the fiber, which saves significant space. The minimum dimension of CCWDM aluminum box module is less than the 1/4 size of minimum CWDM ABS pigtailed module.

1. Telecommunications Applications
   • Fiber Optic System Capacity Boost: CCWDM modules in fiber optic networks multiplex diverse wavelength optical signals into one fiber. In metro network access, operators use them to combine users' signals like Ethernet and voice onto different wavelength carriers in one fiber, enhancing fiber utilization and cutting new fiber installation costs.
   • Long-Distance Transmission Aid: In long-haul links, while DWDM leads in high-capacity, CCWDM serves auxiliary roles. It transmits monitoring, backup data with lower bandwidth needs cost-effectively.
2. CATV Network Use
   • Program Transmission Expansion: In CATV headends, CCWDM modules modulate multiple TV channel signals to different wavelengths for fiber transmission to sub-headends or users. Operators adding HD channels can use it to expand capacity by multiplexing new and old signals.
3. Data Center Interconnection Role
   • Connecting Different Data Centers: As data center scale and number grow, CCWDM modules interconnect them. They multiplex internal network signals like server data and storage backups via fiber, improving connection efficiency, bandwidth use, and reducing costs. In cloud service providers' data center interconnections, it enables high-speed data transfer.

The compact CWDM is ultra low loss, super thermal stability, and excellent reliability, with smaller size compact design to save much space in the application. Applicable to CWDM system and optional special service

Compact coarse wavelength division multiplexers (CCWDM Mux) is the mini version of CWDM Mux. Compared with traditional CWDM technology, CCWDM technology uses free-space optics platform which can significantly improve optical performance, in a package less than 1/4 the size of conventional CWDM modules. Main advantages of CCWDM Mux are high wavelength accuracy and stability, low insertion loss, high isolation and low PDL(polarization dependent loss). It's protocol and rates transparent supporting such applications as the CWDM system, PON networks, and CATV Links.