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DWDM SFP 1536.61nm delivers precise wavelength and stable long-distance performance.
DWDM-SFP-3661=
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DWDM SFP 1536.61 NM SFP 100G ITU GRID
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DWDM-SFP-3661=
- Description:
- DWDM SFP 1536.61 NM SFP 100G ITU GRID
- Rating:
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In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 816678017963
- Condition:
- Warranty:
- 3
- List Price:
$7,174.00
- Price:
$2,654.3963% off
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DWDM-SFP-3661= Overview
DWDM-SFP-3661= is a high-performance SFP transceiver module engineered for dense wavelength division multiplexing (DWDM) applications. It is a 1G SFP device featuring an LC connector, optimized for single-mode fiber networks to deliver long-range transmission over distances up to 80 km while supporting Ethernet protocols in rigorous telecom, enterprise, and data center environments.
Designed with a compact SFP form factor, DWDM-SFP-3661= meets the demanding requirements of modern network infrastructures. Its reliability, precise wavelength stability (1610 nm), and efficient power consumption (approximately 3.5W) ensure seamless integration and compatibility with leading platforms such as Cisco, Juniper, Huawei, and Arista.
DWDM-SFP-3661= price is $2,654.39, a 63% saving from the Cisco list price of $7,174.00. DWDM-SFP-3661= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for DWDM-SFP-3661= for additional pricing. Browse the full Sfp+ For 3000 Series series or explore all Cisco products.
DWDM-SFP-3661= Specifications
- Product Type
- Transceiver
- Form Factor
- SFP
- Data Rate
- 1G
- Connector Type
- LC
- Wavelength
- 1610 nm
- Transmission Distance
- Long-Range
- Fiber Type
- Single-mode
- Max Distance
- 80 km
- Supported Protocols
- Ethernet
- Network Interface
- Fiber
- Power Consumption
- 3.5W
- Operating Temperature
- 0 to 70°C
- Storage Temperature
- -40 to 85°C
- Input Voltage
- 3.3V
- Compatibility
- Cisco / Juniper / Huawei / Arista
- Product Name
- DWDM-SFP-3661=
- Height
- N/A
- Width
- N/A
- Depth
- N/A
- Weight
- N/A
DWDM-SFP-3661= Use Case
Long-Haul Fiber Backbone Upgrade with DWDM-SFP-3661 (1536.61 nm, 100G ITU Grid)
A national carrier modernizes its regional backbone by deploying DWDM-SFP-3661 modules on existing single-mode fiber to carry 100 Gbps per wavelength over 120 km spans without regeneration. The 1536.61 nm ITU-grid tuning enables seamless coexistence with legacy channels in the C-band. Outcome: doubled capacity, 40% lower OPEX (no new fiber digs), and rapid provisioning of high-bandwidth services to enterprise and wholesale customers.
Ultra-Low-Latency Financial Trading Link Leveraging DWDM-SFP-3661 100G Module
A financial exchange installs point-to-point 100 G DWDM links between its data center and colocation facility to support algorithmic trading. Using the DWDM-SFP-3661 at 1536.61 nm with ITU grid precision, the network achieves sub-250 µs latency over 50 km of fiber with dispersion compensation. Benefit: milliseconds shaved off round-trip times, enhanced execution speed, and increased competitiveness in high-frequency trading.
Scalable Data Center Interconnect for Cloud Services with DWDM-SFP-3661 100G
A cloud service provider implements multi-site DCI by deploying DWDM-SFP-3661 modules across metro fiber rings to link three data centers. Each 1536.61 nm 100G channel rides over ITU-standardized C-band with low insertion loss and high optical signal-to-noise ratio. Result: scalable bandwidth growth (up to 2.4 Tbps per fiber), simplified operations via pluggable optics, and accelerated service roll-outs for end customers.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| DWDM-SFP-3661= |  DWDM-SFP-4612= |  DWDM-SFP-3112= |  DWDM-SFP-3190= |  DWDM-SFP-5252= | |
|---|---|---|---|---|---|
| Compatibility | Cisco / Juniper / Huawei / Arista | Cisco, Juniper, Huawei, Arista | Cisco, Juniper, Huawei, Arista | Cisco / Juniper / Huawei / Arista | Cisco / Juniper / Huawei / Arista |
| Connector Type | LC | LC | LC | LC | LC |
| Data Rate | 1G | 10G | 10G | 1G | 10G |
| Depth | N/A | 1.8 inches | N/A | 1.5 inches | 0.72 inches |
| Fiber Type | Single-mode | Single-mode | Single-mode | Single-mode | Single-mode |
| Form Factor | SFP | SFP | SFP | SFP | SFP |
| Height | N/A | 0.3 inches | N/A | 0.24 inches | 0.14 inches |
| Input Voltage | 3.3V | 3.3V | 3.3V | 3.3V | 3.3V |
| Max Distance | 80 km | 80 km | 80 km | 80 km | 80 km |
| Network Interface | Fiber | Ethernet | Fiber | Fiber | Fiber |
| Operating Temperature | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C | 0 to 70°C |
| Power Consumption | 3.5W | 2.5 W | 1.5 W | 3.5W | 2.5W |
| Product Name | DWDM-SFP-3661= | DWDM-SFP-4612= | DWDM-SFP-3112= | DWDM-SFP-3190= | DWDM-SFP-5252= |
| Product Type | Transceiver | Transceiver | Transceiver | Transceiver | Transceiver |
| Storage Temperature | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C | -40 to 85°C |
| Supported Protocols | Ethernet | Ethernet, Fibre Channel | Ethernet | Ethernet | Ethernet |
| Transmission Distance | Long-Range | Extended-Range | Long-Range | Long-Range | Long-Range |
| Wavelength | 1610 nm | 1550 nm | 1550 nm | 1550 nm | 1550 nm |
| Weight | N/A | 0.2 lbs | N/A | 0.2 lbs | 0.10 lbs |
| Width | N/A | 0.5 inches | N/A | 0.75 inches | 0.55 inches |
Reviews & Ratings
M
Milo Barrett
4
Reliable optics with minimal signal degradation. Perfect for backbone networks.
N
Nina Frost
5
Professional-grade SFP, easy integration and maintenance.
O
Owen Steele
5
Consistent performance under heavy traffic. High reliability.
P
Paige Hayes
4
Durable module suitable for dense wavelength optical networks.
Questions & Answers
What is the DWDM-SFP-3661= module?
The DWDM-SFP-3661= is a high-performance 100 Gbps small form-factor pluggable (SFP) transceiver operating at 1536.61 nm on the ITU-T DWDM grid.
What wavelength does the DWDM SFP 1536.61 nm operate on?
It operates at 1536.61 nm, corresponding to ITU-T channel 61 in the DWDM grid for dense wavelength division multiplexing.
What data rate is supported by the DWDM-SFP-3661=?
This transceiver supports a fixed line rate of 100 Gbps to meet high-capacity network demands.
Which fiber type is required for optimal performance?
It requires single-mode fiber (SMF) with an ITU-T compatible DWDM grid for low-loss, long-distance transmission.
What is the maximum transmission distance?
The DWDM-SFP-3661= supports up to 80 km over standard single-mode fiber under typical channel conditions.
Is the module hot-pluggable?
Yes. The DWDM-SFP-3661= is fully hot-swappable and complies with the SFP MSA for plug-and-play installation.
Which connector type does it use?
It uses an LC duplex connector interface for single-mode fiber connections.
Which devices are compatible with this DWDM SFP?
It is compatible with any 100 Gbps network equipment that supports SFP+ or SFP28 DWDM transceivers on ITU-T grid channels.
What are the power consumption specifications?
Typical power consumption is 3.5 W under full operation, in compliance with SFF-8431 power budgets.
What operating temperature range is supported?
The module operates reliably from 0 °C to 70 °C (commercial temperature range) for standard deployments.
What certifications does the DWDM-SFP-3661= hold?
It carries CE, FCC, RoHS and SFP MSA compliance certifications to ensure safety and interoperability.
How do I install the DWDM-SFP-3661=?
Insert the module into a compatible SFP port until it clicks, then connect the LC duplex fiber patch cable securely.
Does the module support digital diagnostic monitoring (DDM)?
Yes. It features DDM (Digital Diagnostics Monitoring) to report real-time parameters such as optical power and temperature.
How do I verify the operational status?
Use your network management software or SFP DDM interface to monitor optical power, temperature, laser bias current and voltage.
Can this module be used in cascaded DWDM links?
Yes. When paired with other ITU-T grid transceivers and optical amplifiers, it supports cascaded DWDM link architectures.
What warranty is provided with the module?
The DWDM-SFP-3661= includes a one-year manufacturer’s warranty covering defects and performance issues under normal use.