CWDM BIDI 10G/2.5G/1.25G

C-LIGHT independently develops 10G/2.5G/1.25G/100M CWDM single-fiber bidirectional SFP28 QSFP+ optical modules to support long-distance transmission, covering transmission distances of 10km, 40km, and 80km. The products support a variety of wavelength pairing combinations, and there are high-temperature 85 °C CWDM series products, which can effectively increase the utilization of optical fibers, save links and human resources, and meet various network requirements. It is particularly suitable for occasions that require high-speed and high-bandwidth transmission, such as 5G fronthaul, access network uplink, and metropolitan area networks. Its communication protocol complies with IEEE 802.3ae, the interface protocol complies with SFF-8431 and SFF-8432, and the packaging protocol complies with SFP+MSA. C-LIGHT has more than 15 years of rich experience in the field of optical communications, focusing on providing spot supply and customization services, and is committed to providing customers with high-quality optical module solutions. CWDM optical modules are compatible with switches from more than 100 brands, and are committed to providing original after-sales service to help customers effectively control costs.

3-year warranty

Long term maintenance

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Each module is 100% tested

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Always in stock, short delivery time

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Product Details

CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver for Single-Fiber Bidirectional Networks

Form Factor	Part No.	Fiber Type	Data Rate	Wavelength	Distance	Connector	Temperature	Note
CWDM BIDI SFP+	CLSFP10GBDCW40D-xx/xx	SMF	1G/10.3G	18CH, 1270/1470nm, 1290/1490nm, ect.	40km	LC/SC	Com./Ind.
CWDM BIDI SFP+	CLSFP10GBDCW10D-xx/xx	SMF	1G/10.3G	18CH, 1270/1290nm, 1310/1330nm, ect.	10km	LC/SC	Com./Ind.
CWDM BIDI XFP	CLXFP10GBDXXXXB23	SMF	9.95-11.1G	CWDM	23dB	LC	Com./Ind.
CWDM BIDI XFP	CLXFP10GBDXXXXB16	SMF	9.95-11.1G	CWDM	16dB	LC	Com./Ind.
CWDM BIDI XFP	CLXFP10GBDXXXXB10	SMF	9.95-11.1G	CWDM	10dB	LC	Com./Ind.
CWDM BIDI SFP	CLSFP25CWBDxxH24	SMF	2.5G	18CH, 1275nm, 1295nm, 1315nm,1335nm, ect.	40km	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP25CWBDxxL24	SMF	2.5G	18CH, 1265nm, 1285nm, 1305nm, 1325nm, ect.	40km	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP25BDXXXXB30	SMF	2.5G	CWDM/CWDM	30dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP25BDXXXXB20	SMF	2.5G	CWDM/CWDM	20dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP25BDXXXXB15	SMF	2.5G	CWDM/CWDM	15dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFPGECWBDxxH24	SMF	1.25G	18CH, 1275nm, 1295nm, 1315nm,1335nm, ect.	80km	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFPGECWBDxxL24	SMF	1.25G	18CH, 1265nm, 1285nm, 1305nm,1325nm, ect.	80km	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFPGEBDCW80D-xx/xx	SMF	1.25G	18CH, 1270/1290nm, 1310/1330nm, ect.	80km	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFPGEBDXXXXB35	SMF	1.25G	CWDM/CWDM	35dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFPGEBDXXXXB28	SMF	1.25G	CWDM/CWDM	28dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFPGEBDXXXXB23	SMF	1.25G	CWDM/CWDM	23dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP62BDXXXXB35	SMF	100M ~ 622Mbps	CWDM/CWDM	35dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP62BDXXXXB28	SMF	100M ~ 622Mbps	CWDM/CWDM	28dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP62BDXXXXB23	SMF	100M ~ 622Mbps	CWDM/CWDM	23dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP15BDXXXXB35	SMF	100M ~ 155Mbps	CWDM/CWDM	35dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP15BDXXXXB29	SMF	100M ~ 155Mbps	CWDM/CWDM	29dB	LC/SC	Com./Ind.
CWDM BIDI SFP	CLSFP15BDCW80D-xx/xx	SMF	100M-155Mbps	18CH,1270/1290nm,1310/1330nm, ect.	80km	LC/SC	Com./Ind.

CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver Overview

C-LIGHT CWDM BiDi optical transceivers are designed for bidirectional optical communication over a single single-mode fiber while supporting multiple network data rates. By combining CWDM wavelength technology with BiDi transmission, the product family enables transmit and receive signals to share one fiber through different optical wavelengths.

The CWDM BiDi portfolio covers 10G, 2.5G, 1.25G, 100M-622Mbps, and 100M-155Mbps applications. Depending on the selected configuration, transmission distances include 10km, 40km, and 80km, with multiple wavelength-pair options available for different CWDM channel plans.

CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver Key Features

Single-Fiber BiDi Transmission

The module transmits and receives optical signals through one single-mode fiber by using different wavelengths for the two directions.

Multi-Rate Portfolio

The product family covers 10G, 2.5G, 1.25G, 100M-622Mbps, and 100M-155Mbps configurations for different network generations.

10km, 40km and 80km Reach

Different configurations provide transmission options for access networks, metropolitan links, and longer-distance fiber connections.

18-Channel CWDM Options

Selected configurations support 18-channel CWDM wavelength combinations, including wavelength pairs across the CWDM optical range.

Multiple Wavelength Pairs

Complementary wavelength configurations allow the two ends of a BiDi link to operate with matched transmit and receive wavelengths.

SFP, SFP+ and XFP Options

The portfolio includes different optical form factors to accommodate network equipment operating at different data rates.

LC and SC Connector Options

LC and SC connector configurations are available for integration with different single-mode fiber cabling environments.

85°C High-Temperature Options

Selected CWDM BiDi configurations provide high-temperature versions supporting case temperatures up to 85°C.

CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver Applications

5G Fronthaul

CWDM BiDi optical modules can provide single-fiber bidirectional connectivity for 5G fronthaul deployments where fiber availability and link efficiency are important.

Access Network Uplink

The multi-rate portfolio provides optical uplink options for access networks operating at different generations of bandwidth.

Metro Ethernet

Longer-reach CWDM BiDi configurations can connect distributed network nodes across metropolitan fiber infrastructure.

Enterprise Fiber Networks

Single-fiber operation can simplify optical connectivity where existing enterprise fiber infrastructure has limited available strands.

Data Center Connectivity

CWDM BiDi modules can be used for suitable data center optical links where high bandwidth and efficient fiber utilization are required.

Fiber-Constrained Deployments

Using one fiber for both transmission directions can provide an effective option for networks where deploying additional fiber is difficult or costly.

Network Modernization

Multiple data-rate configurations allow different generations of optical equipment to be supported within a broader CWDM BiDi deployment.

Long-Distance Access Links

The 40km and 80km versions provide extended optical connectivity for distributed access and metropolitan network applications.

Why Choose C-LIGHT CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver?

Two Technologies in One Link

CWDM wavelength separation and BiDi single-fiber transmission work together to provide bidirectional communication while improving fiber utilization.

Broad Rate Selection

The portfolio spans from lower-speed 100M services to 10G optical transmission, allowing different network requirements to be addressed within one product family.

Flexible Wavelength Planning

Multiple CWDM wavelength combinations provide flexibility when selecting matched modules for different optical channel arrangements.

Long-Reach Configurations

10km, 40km, and 80km versions cover short metropolitan access links as well as extended fiber connections.

Reduced Fiber Requirements

Because both optical directions use the same fiber, BiDi technology can help reduce the number of fiber strands required for a link.

Equipment Integration Flexibility

SFP, SFP+, and XFP options allow the technology to be integrated into different generations of compatible network equipment.

Multi-Vendor Compatibility

C-LIGHT states that its optical transceivers are compatible with switches from more than 100 brands.

Testing and Technical Support

C-LIGHT states that each module is tested and provides compatibility testing, technical guidance, customization, and after-sales support.

CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver FAQ

Q1. What is a CWDM BiDi optical transceiver?

A CWDM BiDi optical transceiver combines CWDM wavelength technology with bidirectional transmission over one single-mode fiber, using different wavelengths for transmitting and receiving signals.

Q2. Which data rates are available?

The C-LIGHT CWDM BiDi family includes 10G, 2.5G, 1.25G, 100M-622Mbps, and 100M-155Mbps configurations.

Q3. What transmission distances are supported?

Depending on the selected configuration, the product family supports 10km, 40km, and 80km transmission distances.

Q4. Does CWDM BiDi require two fibers?

No. CWDM BiDi is designed for bidirectional transmission over one single-mode fiber by separating the transmit and receive signals through different wavelengths.

Q5. Which wavelengths are used?

The product family supports multiple CWDM wavelength combinations. Selected 10G configurations include 18-channel wavelength options such as 1270/1470nm, 1290/1490nm, and other paired wavelengths.

Q6. Which form factors are available?

The product family includes CWDM BiDi SFP, SFP+, and XFP configurations depending on the supported data rate.

Q7. Which connectors are available?

The listed configurations provide LC/SC connector options, while selected XFP configurations use LC connectors.

Q8. Is a high-temperature version available?

Yes. C-LIGHT states that its CWDM series includes high-temperature products supporting case temperatures up to 85°C.

CWDM BiDi 10G/2.5G/1.25G/100M Optical Transceiver Solution Summary

C-LIGHT CWDM BiDi optical transceivers provide a flexible solution for bidirectional communication over single-mode fiber while supporting multiple network data rates. With 10G, 2.5G, 1.25G, 100M-622Mbps, and 100M-155Mbps configurations, transmission options up to 80km, multiple CWDM wavelength pairs, and SFP/SFP+/XFP form factors, the product family can address 5G fronthaul, access network uplinks, metropolitan networks, enterprise fiber infrastructure, and other fiber-constrained deployments.

Support&Service

Customized Needs

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Customized Needs

C-LIGHT R&D and sales provide various personalized product customization services for customers in different industries.

C-LIGHT ensures good product quality and quality assurance through a series of effective measures.

C-LIGHT provides professional pre-sales and after-sales services, including product certification qualifications, product reports, and free technical support.

C-LIGHT provides an excellent production environment to ensure that products can meet customer needs.

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Quality inspection

●100% of products pass initial test, final test and factory inspection.

●3-step quality control management process.

●100% complete implementation of customer order quality requirements.

●100% guarantee of customer product data information security.

Quality certification

Please contact us to download the certification certificate.

Quality certification

Please Note: Installing a third party transceiver does not void your network equipment warranty. Network equipment manufacturers all have guidelines stating that warranty support on their products will not be affected.

Need More Information About CWDM BIDI 10G/2.5G/1.25G
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Email : sales@c-light.com

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