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China FBT Coupler/Splitter Suppliers - 2:98, 1:99 Ratio, Low Insertion Loss, High Stability, SMF28e Fiber Factory
Product Description
Miniaturized design with significantly reduced dimensions. Coupler size can be as small as diameter 2.4mm, length 35mm.
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, ≥50dB for UPC type, ≥60dB for APC type. Effectively reduces optical signal reflection, minimizing interference from reflected light, and improving system stability and reliability.
Good compatibility with different types of optical fiber.
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 main package dimensions of this miniaturized fiber optic coupler?
The device features an ultra-compact package size as small as < Φ2.4mm × 35mm, making it ideal for compact optical modules and space-constrained installations.
Q What split ratios are supported by this coupling device?
Standard options include 1*2 configurations with split ratios such as 1:99, 2:98, and 5:95, designed to ensure low insertion loss and high transmission stability.
Q What operating wavelength range does the device cover?
It operates at a center wavelength of 1550 nm with a working wavelength range spanning from 1520 nm to 1580 nm.
Q What is the operating temperature range for this coupler?
The device is fully compliant with Telcordia GR-1221 standards and operates reliably within a wide temperature range of -40°C to +85°C.
Q What fiber type is used in this optical coupling device?
It standardly adopts SMF-28e 250μm bare fiber with a fiber length of ≥ 1.0 meter, offering broad compatibility with standard single-mode optical systems.