1480/1550 Dual-band Fused Taper Wavelength Division Multiplexer
Kerns Technology is a premier manufacturer of fused taper optical components in China. We provide tailored selections matching your ideal features, specifications, and system needs. We can custom the 1480/1550 dual-band WDM you ordered.
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Product Description
Product Description
The Kerns Technology 1480/1550 Dual-band Fused Taper Wavelength Division Multiplexer (SWDM) is a high-performance passive optical component designed to combine or separate 1480nm and 1550nm optical signals within a single fiber. Leveraging advanced fused taper technology, it achieves ultra-low insertion loss, high isolation, and long-term stability—critical for optimizing signal transmission in fiber optic amplifiers and laser systems.
Available in Grade P (premium) and Grade A (standard) configurations, this SWDM supports 1480/1550±5nm wavelength bands, with a maximum insertion loss of 0.3dB (Grade P) and minimum isolation of 15dB. Its compact φ3.0×60mm package, wide temperature range (-40~+85°C), and flexible fiber/connector options enable seamless integration into both laboratory and industrial optical setups.
Product Features
1. Dual-band Signal Management
Precisely combines/separates 1480nm (pump light) and 1550nm (signal light) in a single component, eliminating the need for multiple wavelength-specific devices in EDFA systems.
2. Ultra-Low Insertion Loss
Grade P offers a maximum insertion loss of 0.3dB, minimizing signal attenuation and preserving power efficiency in long-haul optical links (outperforming standard WDMs with ≥0.4dB loss).
3. High Isolation & Directionality
Minimum isolation of 15dB (Grade P) and directionality ≥55dB prevent cross-talk between 1480nm and 1550nm signals, ensuring signal integrity.
4. Robust & Customizable Design
Compact φ3.0×60mm package for space-constrained systems
Supports fiber types (SMF-28e), pigtail lengths (0.5m~3m), and connectors (FC/UPC, SC/APC, etc.)
Withstands -40~+85°C operating temperatures for harsh environment deployment
5. High Stability & Reliability
Fused taper structure ensures consistent performance over long-term operation, with minimal drift from temperature or mechanical stress.
Product Applications
This 1480/1550 dual-band SWDM is widely used in:
Fiber EDFAs (Erbium-Doped Fiber Amplifiers): Combines 1480nm pump light with 1550nm signal light to enhance amplification efficiency.
Laser Systems: Separates pump and signal wavelengths in high-power laser setups to protect laser sources.
Optical Communication Links: Enables wavelength-division multiplexing (WDM) in 1550nm-based telecom backhaul networks.
Test & Measurement Equipment: Serves as a stable wavelength separation component in optical power meters and spectrum analyzers.
Grade P vs. Grade A Performance Comparison
| Parameter | Unit | Grade P (Premium) | Grade A (Standard) |
|---|---|---|---|
| Operating Wavelength | nm | 1480/1550±5 | 1480/1550±5 |
| Max Insertion Loss | dB | 0.3 | 0.35 |
| Max Polarization-Dependent Loss | dB | 0.1 | 0.1 |
| Min Isolation | dB | 15 | 14 |
| Directionality | dB | ≥55 | ≥55 |
| Return Loss | dB | ≥55 | ≥55 |
| Fiber Length | - | 1m (customizable) | 1m (customizable) |
| Fiber Type | - | SMF-28e | SMF-28e |
| Package Size (Bare Fiber) | mm | φ3.0×60 | φ3.0×60 |
| Operating Temperature | °C | -40~+85 | -40~+85 |
| Storage Temperature | °C | -40~+85 | -40~+85 |
FAQs
Q1: How does connector installation affect performance?
A1: When equipped with connectors, insertion loss increases by 0.3dB and return loss decreases by 5dB. We recommend factory-installed connectors for optimal alignment and minimal signal degradation.
Q2: Can the fiber length be customized for my system?
A2: Yes. The standard fiber length is 1m, and we support custom lengths (e.g., 0.5m, 2m, 3m) to match your installation space and connection requirements.
Q3: Is this SWDM compatible with single-mode fiber (SMF) systems?
A3: Absolutely. It is designed for SMF-28e (the most common single-mode fiber) and is fully compatible with standard single-mode optical networks.
Q4: What is the typical lifespan of this fused taper WDM?
A4: The fused taper structure provides a lifespan of over 10 years under normal operating conditions, with no maintenance required.
