SFP-GIG-37CWD40 operates as a 1370nm CWDM SFP module, delivering 1.25Gbps data throughput via its internal DFB laser and PIN photodiode. This module achieves reach up to 40km on single-mode fiber and features built-in real-time digital diagnostic monitoring for optical power, bias current, supply voltage, and temperature. Its specified operating temperature spans 0°C to +70°C.
Alcatel-Lucent Part Number
SFP-GIG-37CWD40
Vendor Name
LINK-PP
Form Factor
SFP
Max Data Rate
1.25Gbps
Wavelength
1370nm
Max Cable Distance
40km
Connector
Duplex LC
Media
SMF
Transmitter Type
DFB
Receiver Type
PIN
TX Power
-5 to 0dBm
RX Power
-26 to -1dBm
Receiver Sensitivity
-24dBm
Receiver Overload
-1dBm
EMC (Electromagnetic Compatibility)
Supported
DDM Support
Yes
Operating Temperature Range
0 to 70°C
Protocols
SFP MSA、SFF-8472
Key Features of Alcatel-Lucent SFP-GIG-37CWD40 Compatible LINK-PP 1.25G SFP
Alcatel-Lucent SFP-GIG-37CWD40 Compatible LINK-PP module is a commercial-grade 1G SFP optical transceiver with a 1370nm CWDM wavelength. It supports 40km transmission over single-mode fiber through a duplex LC interface and includes DDM functions with SFF-8472 for real-time link supervision. This module is well suited for metro access and FTTx backhaul networks, offering reliable 1Gbps connectivity while maximizing fiber usage via CWDM channelization.
This module follows a hot-pluggable SFP footprint and fully complies with SFP MSA standards. It enables easy installation and replacement without powering down the host system.
SFP-GIG-37CWD40: 1 Gbps Connectivity for FTTx Backhaul
It operates at a 1Gbps data rate, suitable for FTTx backhaul and point-to-point Ethernet links. The speed ensures stable throughput for access network aggregation and last-mile connectivity.
SFP-GIG-37CWD40 Module with CWDM Technology for Fiber Efficiency
CWDM technology allows this module to use a specific 1370nm channel within a coarse wavelength division multiplexing grid. It helps maximize fiber utilization by enabling multiple wavelengths on a single fiber pair.
SFP-GIG-37CWD40 Module with 1370nm Wavelength
The transmitter is centered at 1370nm, which falls in the CWDM spectrum band. This wavelength choice supports efficient transmission over standard G.652 single-mode fiber with low dispersion.
The module supports link distances up to 40km over single-mode fiber. This reach is ideal for metropolitan area networks and remote backhaul applications.
SFP-GIG-37CWD40 Module with Duplex LC Interface
A duplex LC connector provides separate transmit and receive ports on the module. This interface ensures simple and secure fiber plug-in for standard network equipment.
SFP-GIG-37CWD40 Module with DDM for Real-Time Monitoring
Digital Diagnostic Monitoring (DDM) is implemented, compatible with SFF-8472. It offers real-time access to parameters such as operating temperature, supply voltage, laser bias current, and optical power for link health management.
The SFP-GIG-37CWD40 CWDM optical module strictly follows international standards to guarantee high quality and safety. It is fully certified with ISO 9001, CE, RoHS, and FCC compliance for reliable performance.
Every transceiver undergoes rigorous testing, including optical spectrum checks and bit error rate verification. This comprehensive program ensures high stability and error-free data transmission before shipment.
SFP-GIG-37CWD40 Quality Certifications
Official industry qualifications confirm that this product meets high safety and environmental standards. These certifications ensure that each module delivers long-lasting and consistent performance in network operations.
This product is in conformity with ISO9001. This system is valid to a company engaging in development, production and supply service of fiber optical products. Please contact us to learn more.
ISO/IEC 27001 is an international standard for managing and processing information security. This standard is jointly developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It sets out requirements for establishing, implementing, maintaining, and continually improving an information security management system (ISMS). Ensuring the confidentiality, integrity, and availability of organizational information assets, obtaining an ISO 27001 certificate means that the enterprise has passed the audit conducted by a certification body, proving that its information security management system has met the requirements of the international standard. Please contact us to learn more.
This product is in conformity with ISO14001.It is intended for use by an organization seeking to manage its environmental responsibilities in a systematic manner that contributes to the environmental pillar of sustainability. Please contact us to learn more.
ISO 45001 is a global standard that sets out the requirements for an occupational health and safety management system (OH&SMS).
REACH is a European Union regulation concerning the Registration, Evaluation, Authorization and Restriction of Chemicals. It came into force on 1st June 2007 and replaced a number of European Directives and Regulations with a single system. The regulation aims to protect human health and environmental safety, maintain and improve the competitiveness of the EU chemical industry, and develop innovative capabilities for non-toxic and harmless compounds to prevent market fragmentation, increase the transparency of the use of chemicals, promote non-animal experiments, and pursue sustainable social development.Please contact us to learn more.
This product meets the applicable requirements of Directive (EU) 2015/863 of RoHS. It restricts the use of 10 hazardous materials in the manufacture of various types of electronic and electrical equipment: lead, mercury, cadmium, hexavalent chromium, polybrominated biphenyls, polybrominated diphenyl ethers, and four different phthalates. Please contact us to learn more.
This product fully accords with the FCC, which aims to manage the radio wave and magnetic fields more reasonably. Please contact us to learn more.
CB is an international system operated by IECEE. This product is based on IEC standards for testing the safety performance of electrical products. Please contact us to learn more.
This product fully accords with UKCA (UK Conformity Assessed) certificate, which signifies that it meets all relevant quality standards as well as health and safety requirements. Please contact us to learn more.
UL certification is a non-mandatory certification in the United States,mainly testing and certification of product safety performance.Its ultimate purpose is to obtain products with a fairly safe level for the market,and to contribute to ensuring human health and property safety.Please contact us to learn more.
SFP-GIG-37CWD40 Certified for Reliable Host-Device Compatibility
This CWDM module is thoroughly tested across various brand switches and routers to guarantee seamless plug-and-play operation. It ensures stable communication and strong data link connectivity with your host equipment.
Rigorous Testing Ensures Reliable SFP Performance
Every SFP-GIG-37CWD40 1G SFP module undergoes thorough testing to verify signal integrity and long-term stability. To see our complete testing methodology, discover more details at the LINK-PP Test Support Center.
Optical Spectrum Test
Verify central wavelength precision and optical spectral width performance.
Eye Pattern Test
Analyze signal transmitter clarity to ensure optimal waveform quality.
Bit Error Rate Test
Measure data transmission accuracy for completely error-free network links.
Temperature Test
Validate operational stability across demanding thermal environmental range conditions.
Product Shipping for Alcatel-Lucent SFP-GIG-37CWD40 Compatible LINK-PP 1.25G SFP
Each SFP-GIG-37CWD40 1G SFP transceiver is carefully packaged and processed to ensure maximum safety during transit. Reliable global logistics partners deliver your orders quickly and securely to destination sites.
Anti-Static Protective Packaging
Protect optical modules against electrostatic discharge damage during handling.
Shock-Resistant Transport Protection
Shield physical components from impact damage throughout the journey.
Fast Order Processing and Dispatch
Accelerate order fulfillment to ensure prompt warehouse shipment dispatch.
Global Logistics and International Delivery
Provide dependable international shipping to destinations worldwide without delay.
Mount the SFP-GIG-37CWD40 1G CWDM module into standard switch SFP slots to connect optical multiplexers seamlessly. Operating at a precise 1370nm CWDM wavelength, it simplifies deployment for telecom operators and ensures high-performance connectivity within FTTx backhaul networks and distributed access node links.
SFP-GIG-37CWD40 Technical Support
LINK-PP offers end-to-end technical support, from pre-sales consultation to post-deployment assistance, ensuring smooth integration and reliable network performance.
Pre-Sales Technical Consultation
Professional guidance to help you select the optimal SFP-GIG-37CWD40 module for your network design and application needs.
Compatibility Verification Support
Validated compatibility with LINK-PP switches and other mainstream networking platforms for seamless deployment.
Deployment & Installation Assistance
Comprehensive step-by-step guidance for installation, configuration, and initial setup, ensuring accurate deployment and reliable, stable operation from the start.
Long-Term Technical Assurance
Ongoing technical support throughout the product lifecycle, delivering long-term stability for enterprise and carrier-grade networks.
A:
Yes, the LS-CW371G-40C module supports data rates up to 1.25Gbps, providing complete protocol compatibility for Gigabit Ethernet, 1.063Gbps Fibre Channel, and other optical systems. By
admin on
2026-04-11
A:
No, the built-in DFB laser operates with high spectral purity and adheres to standard 20nm CWDM channel isolation, ensuring zero optical crosstalk with your existing legacy 1310nm or 1550nm traffic. By
admin on
2026-01-29
A:
Yes, the module is fully compliant with the ITU-T G.694.2 standard 20nm grid spacing and features a standard duplex LC interface optimized for single-mode fiber, ensuring seamless physical and optical interface matching, allowing your passive Mux to maintain its specified low-insertion-loss performance. By
admin on
2025-11-20
We added this 1370nm SFP transceiver to expand our existing passive CWDM multiplexer without running new outdoor fiber lines. It slotted right into the duplex LC patch panel, and the 20nm channel spacing kept the signal completely free from adjacent channel interference. Power consumption is very low, which helps keep our densely packed edge switch running cool. The metal housing and locking bail latch feel sturdy and well-built for heavy-duty rack use. Highly recommended for bandwidth expansion.
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492116
457810
P***y
Brunei Darussalam
Verified
Purchase
5 .0
2026-05-18
We swapped out an expensive OEM optic on our switch with this LS-CW371G-40C CWDM module. Link negotiation took less than 2 seconds. Transmit power is clean at -1.8 dBm. Price-to-performance ratio is unbeatable for enterprise maintenance.
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492116
457800
E***n
Libyan Arab Jamahiriya
Verified
Purchase
5 .0
2026-03-14
Used these to light up a campus fiber run between our main office and the warehouse. 1370nm channel, duplex LC, single mode. Both ends synced at 1G with no drops, and the DDM reporting is spot on.
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492116
457799
O***s
United Kingdom
Verified
Purchase
4 .0
2026-01-22
Running this over a 30km single-mode link, throughput is rock solid with zero frame errors. The package arrived with the outer packing tape partially torn on one side from rough transit handling. The inner packaging kept the optic safe, but stronger tape is needed.
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492116
457814
N***l
Hungary
Verified
Purchase
5 .0
2026-01-18
Deployed this 1370nm 1G SFP module in an indoor aggregation cabinet powering a suburban microcell site. Over a 24km OS2 single-mode span, the PIN receiver is sitting at a healthy -16.4 dBm with zero CRC errors. Latency is negligible and link stability is 100%.
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492116
457808
R***n
Israel
Verified
Purchase
5 .0
2025-10-15
Instead of trenching expensive single-mode fiber cables across our industrial park, we multiplexed 8 gigabit links over one dual-SMF run. This 1370nm 40km SFP locked in immediately on our platforms. DDM temperature and voltage tracking work smoothly via SNMP.
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492116
457802
E***e
Argentina
Verified
Purchase
5 .0
2025-10-01
Deployed this 1370nm CWDM 40km SFP on an aggregation link connecting our central distribution point to a suburban tower site over OS2 fiber. Throughput tests delivered clean wire-speed performance with zero packet drops during peak traffic hours. The optical receiver sensitivity is impressive, easily overcoming our MUX insertion loss with plenty of link margin left over. SNMP monitoring pulled optical power and temperature stats automatically without extra configuration. A great cost-effective transceiver for service providers.
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492116
457811
Y***p
Bulgaria
Verified
Purchase
5 .0
2025-08-21
DDM support was our biggest requirement for remote diagnostics. Through the switch's CLI, we get exact laser bias current and received power readings. Makes troubleshooting dirty patch cables so much faster. A must-have for managed network ops!
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492116
457804
D***s
Germany
Verified
Purchase
4 .0
2025-08-14
Modules work like a charm on our passive MUX, and DDM metrics are spot on. Delivery took 2 days longer than expected due to local customs clearance. If you have an urgent weekend maintenance window, make sure to order well in advance. Otherwise, great hardware.
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492116
457813
J***t
Belarus
Verified
Purchase
5 .0
2025-06-04
Ordered 12 units for our regional university campus backbone upgrade. Every CWDM SFP transceiver arrived sealed in static-shielding packaging. Tested all 12 modules on a test bench — 0 DOA, 100% wavelength compliance on our optical spectrum analyzer. Great batch consistency!
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492116
457805
O***s
Bangladesh
Verified
Purchase
5 .0
2025-05-27
We installed this 1370nm CWDM module to link our main data center with an annex building roughly 35km away over standard single-mode fiber. The 40km optical power budget handled our patch panel splice loss easily, and the link negotiated instantly at 1.25Gbps. DDM diagnostics gave us accurate, real-time Tx and Rx power readouts right from our switch dashboard. It has been running continuously for two months without a single drop or frame error. Truly dependable optics for long-range building-to-building setups.
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492116
457798
M***t
Philippines
Verified
Purchase
5 .0
2025-03-08
We are running a coarse wavelength division multiplexing grid between two data halls. The 1370nm channel on this CWDM SFP module integrated cleanly with our passive MUX. The power budget is well within specs, and the DFB laser output is steady. Solid 1.25G throughput all day long.
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492116
457801
V***m
Canada
Verified
Purchase
5 .0
2025-01-22
We used a pair of these 1370nm CWDM SFP modules to establish a dedicated fiber bridge between two server locations 28km apart for daily offsite data backups. The standard duplex LC interface connected tightly to our patch cables, and jumbo frames passed through cleanly at full gigabit speed. Even during heavy midnight data syncs, the link remained 100% stable with minimal latency and no packet errors. It delivers true carrier-grade reliability at a fraction of the big-brand OEM price.
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