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19CH O+C-Band DWDM Mux/Demux – 8CH O-Band + 11CH C-Band
GracyFiber 19CH O+C-Band DWDM Module is a dual-band wavelength multiplexing solution combining 8 O-band channels and 11 C-band channels within one passive optical module. The device operates across 1260–1360 nm and 1525–1575 nm, enabling O-band and C-band optical signals to be multiplexed or demultiplexed through a common COM interface.
The specification explicitly notes that the optical-performance values are given with connectors.
The supplied specification does not identify specific end-market applications. To avoid adding unsupported claims, the website should limit this section to optical functions directly supported by the product configuration:
Application claims such as data center, 5G, PON, coherent transmission, sensing, or transceiver testing should be added only after confirmation.
It is a wavelength multiplexer/demultiplexer combining 8 O-band DWDM channels and 11 C-band DWDM channels into one optical module.
The specified operating ranges are 1260–1360 nm for the O-band region and 1525–1575 nm for the C-band region.
The two wavelength groups use different channel spacing:
The corresponding specified passbands are:
The O-band contains:
O284 / O286 / O288 / O290 / O292 / O294 / O296 / O298
The C-band contains:
C20 / C21 / C22 / C23 / C24 / C25 / C26 / C27 / C28 / C29 / C30.
Yes. The specification explicitly states:
“Above specifications with connector.”
The maximum COM-to-WDM channel insertion loss is 3.60 dB.
The supplied specification lists:
| Parameter | Specification |
|---|---|
| Product Type | 19CH O+C-Band DWDM Module |
| Operating Wavelength Range | 1260–1360 nm & 1525–1575 nm |
| Total Channel Count | 19CH |
| O-Band Channels | 8CH |
| C-Band Channels | 11CH |
| O-Band Channel Spacing | 200 GHz |
| C-Band Channel Spacing | 100 GHz |
| O-Band Passband | ±0.2 nm |
| C-Band Passband | ±0.11 nm |
| COM ↔ WDM Insertion Loss | ≤3.60 dB |
| Adjacent Channel Isolation | ≥25 dB |
| Non-Adjacent Channel Isolation | ≥35 dB |
| Directivity | ≥50 dB |
| Return Loss | ≥45 dB |
| Ripple | ≤0.5 dB |
| Polarization Dependent Loss (PDL) | ≤0.2 dB |
| Polarization Mode Dispersion (PMD) | ≤0.2 ps |
| Optical Power | ≤500 mW |
These values are specified with connectors.
| Parameter | Specification |
|---|---|
| Operating Temperature | -20°C to +70°C |
| Storage Temperature | -40°C to +85°C |
| Operating Humidity | 5–95% RH |
| Fiber Type | Ultra G657A1 |
| Fiber Coating | 0.9 mm loose tube |
| Fiber Length | 300 ±50 mm |
| Connector | LC/PC |
| Package Size | 120 × 80 × 14 mm |
| Package Material | Aluminum, Black |
| COM Fiber Color | Black |
| Other Fiber Color | White |
| Channel | Frequency | Center Wavelength |
|---|---|---|
| O284 | 228.40 THz | 1312.58 nm |
| O286 | 228.60 THz | 1311.43 nm |
| O288 | 228.80 THz | 1310.28 nm |
| O290 | 229.00 THz | 1309.14 nm |
| O292 | 229.20 THz | 1308.00 nm |
| O294 | 229.40 THz | 1306.85 nm |
| O296 | 229.60 THz | 1305.72 nm |
| O298 | 229.80 THz | 1304.58 nm |
| Channel | Frequency | Center Wavelength |
|---|---|---|
| C20 | 192.00 THz | 1561.42 nm |
| C21 | 192.10 THz | 1560.61 nm |
| C22 | 192.20 THz | 1559.79 nm |
| C23 | 192.30 THz | 1558.98 nm |
| C24 | 192.40 THz | 1558.17 nm |
| C25 | 192.50 THz | 1557.36 nm |
| C26 | 192.60 THz | 1556.55 nm |
| C27 | 192.70 THz | 1555.75 nm |
| C28 | 192.80 THz | 1554.94 nm |
| C29 | 192.90 THz | 1554.13 nm |
| C30 | 193.00 THz | 1553.33 nm |
The complete channel/frequency/wavelength mapping is shown in the supplied WDM module layout.
Channel Configuration
Channel Spacing
Fiber
Connector
Fiber Length
Housing
The mechanical drawing shows a common COM port and nineteen wavelength-channel outputs, with individual channel labels and LC/PC terminations.
The GracyFiber 19CH O+C-Band DWDM Module integrates two different dense wavelength grids into a single passive optical platform. Rather than limiting wavelength routing to one conventional transmission band, the module provides eight channels around 1305–1313 nm and eleven channels around 1553–1561 nm through one common optical interface.
The O-band channel group uses 200 GHz frequency spacing, with channels O284 through O298 and a specified ±0.2 nm passband. The C-band group uses a denser 100 GHz grid, covering C20 through C30 with ±0.11 nm passband.
This architecture allows wavelength signals from the two spectral regions to be aggregated or separated within one module while maintaining defined optical performance. COM-to-channel insertion loss is specified at ≤3.60 dB. Adjacent- and non-adjacent-channel isolation are specified at ≥25 dB and ≥35 dB respectively, with PDL and PMD both limited to 0.2 in their respective units.
The module is connectorized with LC/PC interfaces, and the specification explicitly states that the listed optical values already include connectors. Fiber pigtails use G657A1 fiber in 0.9 mm loose tube with a specified length of 300 ±50 mm.
Mechanically, the optical assembly is housed in a black aluminum enclosure measuring 120 × 80 × 14 mm. The supplied drawing shows one COM fiber and nineteen separately identified output fibers arranged along the module interface.
The supplied specification does not name end-user markets, so these scenarios are limited to functions directly established by the optical architecture.
The module can combine the specified eight O-band and eleven C-band wavelength channels through a common COM interface.
This enables a single passive module to manage two separated wavelength regions within one optical architecture.
When used in the reverse direction, the common optical input can be separated into the nineteen defined wavelength channels.
The channel plan and module layout explicitly show COM connected to O284–O298 and C20–C30.
The module can provide passive routing of the nineteen specified center wavelengths where a system requires fixed O-band and C-band channel separation.
Specific end applications should be confirmed before additional market claims are published.
GracyFiber provides passive wavelength-management products for optical communication and photonics applications, including:
For an O+C-band project, customers can provide the required O-band channels, C-band channels, channel spacing, connector, fiber type, package, and optical-performance requirements for technical review.
| Related Product | Why It Is Related |
|---|---|
| O-Band DWDM Multiplexer | Provides dense wavelength routing within the O-band portion of this module architecture |
| C-Band DWDM Multiplexer | Provides conventional dense wavelength routing in the C-band |
| O-Band WDM Multiplexer | Related 1260–1360 nm wavelength-management solution |
| AAWG DWDM | Related high-channel-count DWDM wavelength-routing technology |
| CWDM / CCWDM Multiplexer | Alternative WDM architecture using wider wavelength spacing |
| Optical WDM Filter | Provides pass/reflect wavelength separation for selected optical bands |
For a 19CH O+C-Band DWDM Module quotation or technical evaluation, please provide:
GracyFiber can review the wavelength plan and optical configuration for your O+C-band WDM requirement.
Address
4/F,Building D ,ZhiXuanHan Yuanling Industrial Park,ShiYan Sub-District,Baoan District,Shenzhen City,Guangdong Province,China
Tel
86-0755-27204792
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