1310nm Singlemode Broadband Coupler (GK-SBC Series)
description1
Specifications
Parameter |
Unit |
Value |
Center Wavelength (λc) |
nm |
850 1064 1310 |
Operating Wavelength Range |
nm |
± 100 ± 100 ± 100 |
Coupling Ratio |
% |
2/98, 5/95, 10/90, 50/50, or specified |
Coupling Ratio Tolerance (e.g. 50/50) |
% |
6 5 5 |
Max. Uniformity 50/50 Ratio |
dB |
1 0.5 0.5 |
Excess Loss |
dB |
0.25 0.15 0.15 |
Thermal Stability |
dB/℃ |
≤ 0.002 over - 5 ℃ to + 70 ℃ |
Min. Return Loss |
dB |
55 |
Min. Directivity 1 × 2 2 × 2 |
dB |
55 60 |
Max. Optical Power (Continuous Wave) |
mW |
300 |
Fiber Type |
- |
HI 780C HI 1060 Flex SMF-28 Fiber |
Operating Temperature |
℃ |
- 5 to + 70 |
Storage Temperature |
℃ |
- 40 to + 85 |
¹IL is 0.3 dB higher, RL is 5 dB lower for each connector added. |
Package Dimensions

product description
The Singlemode Broadband Coupler is a versatile and essential component in fiber optic systems that require the splitting or combining of light signals while maintaining high performance across a wide range of wavelengths. Here's a detailed look at its key features:
This feature ensures that the power of the light signal is minimally reduced when it passes through the coupler. Low insertion loss is crucial for maintaining signal strength, especially in long-distance fiber optic communication systems or when multiple couplers are used in series.
The coupler is designed to have minimal performance variation depending on the polarization state of the input light. This characteristic is important for ensuring consistent performance across different types of optical signals and for maintaining signal integrity.
The coupler maintains its performance parameters (like insertion loss and coupling ratios) under varying environmental conditions, such as temperature fluctuations. This stability is vital for outdoor or uncontrolled environmental applications where the equipment may be exposed to changing weather conditions.
The coupler can be configured to provide precise power splitting ratios, ranging from a 50/50 split to a 1/99 split. This flexibility allows it to be tailored to specific system requirements, whether it's for power monitoring, signal distribution, or other applications.
The coupler exhibits uniform performance across a broad spectrum of wavelengths. This characteristic is particularly useful in Wavelength Division Multiplexing (WDM) systems where multiple signals at different wavelengths are combined or separated on a single fiber.