Singlemode Broadband Coupler (GK-SBC Series)-1

The GKER Singlemode Broadband Coupler Series delivers high performance with exceptionally low insertion loss, minimal polarization dependence, and superior environmental stability. Designed for precise signal management, it offers coupling ratios ranging from 50/50 to 1/99 with excellent uniformity across a broad wavelength range.

This coupler operates effectively at standard wavelengths of 1310 nm and 1550 nm, or other specified wavelengths, and provides reliable performance with a maximum insertion loss of 21.5 dB for 1 × 2 configurations and 7.5 dB for 2 × 2 configurations. Its low polarization dependent loss (PDL) of 0.10 dB ensures consistent signal quality, while its high return loss of 50 dB maintains signal integrity.

The GKER single-mode broadband coupler series is a fiber optic device designed for precise signal management and high-performance requirements. These couplers work effectively at standard wavelengths of 1310 nm and 1550 nm, and can also operate at other specified wavelengths. They provide coupling ratios ranging from 50/50 to 1/99, covering a wide wavelength range and exhibiting excellent uniformity.

Here are some key features of the GKER single-mode broadband coupler series:

Extremely low insertion loss: The maximum insertion loss of the 1 × 2 configuration is 21.5 dB, while the 2 × 2 configuration is 7.5 dB, which means that the loss of the signal when passing through the coupler is minimized.

Minimum polarization dependence: The polarization related loss (PDL) of the coupler is as low as 0.10 dB, ensuring that optical signals of different polarization states can pass through with consistent quality.

Excellent environmental stability: These couplers can operate stably within a working temperature range of -10 ° C to+70 ° C, while withstanding storage temperatures of -40 ° C to+85 ° C, ensuring stable performance under different environmental conditions.

High return loss: The coupler provides a return loss greater than 50 dB, which helps reduce the reflected light signal back to the light source, thereby reducing noise and improving system performance.

Directionality: The coupler exhibits directionality greater than 55 dB, ensuring the transmission efficiency of the signal in the desired direction.

These characteristics make the GKER single-mode broadband coupler series highly suitable for high-speed communication systems, fiber amplifiers (such as EDFA), dense wavelength division multiplexing (DWDM) systems, and other applications that require precise signal allocation and monitoring. The design and manufacturing of the coupler meet Telcordia GR-1209-CORE and GR-1221-CORE standards and comply with RoHS requirements.