Fused Biconical Taper (FBT) Coupler/Splitter 2:98 & 1:99 - Low Loss & High Reliability from China Suppliers & Factory
Product description
Miniaturized Fiber Optic Coupling Devices feature compact size, excellent performance, and convenient connectivity:
Compact Size: Miniaturized design with significantly reduced dimensions. Coupler size can be as small as diameter 2.4mm, length 35mm.
Low Insertion Loss: Insertion loss is typically low, often ≤0.2dB. Helps reduce optical signal energy loss during coupling, maintaining signal strength and transmission quality.
High Return Loss: High return loss, ≥50dB for UPC type, ≥60dB for APC type. Effectively reduces optical signal reflection, minimizing interference from reflected light, and improving system stability and reliability.
High Compatibility: Good compatibility with different types of optical fiber.
Strong Environmental Adaptability: Complies with industry standards like Telcordia GR-1221. Operates stably from -40°C to 85°C, exhibiting good environmental adaptability to meet various application scenario needs.
Product Applications
●
Optical fiber communication system
●
Cable TV
●
Passive optical network
Product Parameters
| Parameters | Parameter value range |
|---|---|
| Structural configuration | 1*2 |
| Center wavelength (nm) | 1550 |
| Working wavelength range (nm) | 1520~1580 |
| 2: 98 point splitter insertion loss standard value | |
| 98% insertion loss at 23℃ (dB) | ≤0.30 |
| 2% insertion loss at 23℃ (dB) | 16~18.5 |
| 1: 99 point splitter insertion loss standard value | |
| 99% insertion loss at 23℃ (dB) | ≤0.25 |
| 1% insertion loss at 23℃ (dB) | 19~21.5 |
| 5: 95 point splitter insertion loss standard value | |
| 95% insertion loss at 23℃ (dB) | ≤0.43 |
| 5% insertion loss at 23℃ (dB) | 12~14.5 |
| Polarization-dependent loss (dB) | <0.15 |
| Polarization mode dispersion (ps) | <0.25 |
| Temperature dependent loss (dB) | <0.15 |
| Return Loss (dB) | ≥55 |
| Wavelength dependent loss (dB) | <0.4 |
| Operating temperature (℃) | -40 ~ +85 |
| Storage temperature (℃) | -40 ~ +85 |
| Package Dimensions (mm) | <ɸ2.4*35 |
| Type of Fiber | SMF-28e, 250um bare fiber |
| Fiber Length | ≥1.0m |
| Connector | NA |
Product Size
Frequently Asked Questions
Q:
What are the dimensions of the Miniaturized Fiber Optic Coupling Device?
The device features an ultra-compact package design with dimensions as small as diameter 2.4mm and length 35mm, making it ideal for space-constrained applications.
Q:
What is the typical insertion loss and return loss for these couplers?
These couplers feature a low insertion loss, typically ≤0.2dB, to maintain signal strength. They also provide high return loss performance of ≥50dB for UPC types and ≥60dB for APC types to minimize reflections.
Q:
What is the operating temperature range of the device?
The device is designed for high environmental stability, operating reliably across a wide temperature range from -40°C to 85°C.
Q:
Which industry standards do these coupling devices comply with?
They comply with rigorous industry standards, specifically meeting the requirements of Telcordia GR-1221 to ensure long-term reliability and performance.
Q:
What fiber types are compatible with this product?
The coupler is configured with SMF-28e, 250um bare fiber, offering high compatibility with standard optical fiber communication systems.

Fiber Amplifier Products
Light Source&Light Harvesting Products
Optical Device Products
Subsystem Products
Instruments and Meters
Communication Field
Sensing Field
Laser Radar
Research and Medical Care

