Fiber Optic Coupler

1×4, 1×8 PM Filter Coupler Module

Polarization maintaining coupler modules combine multiple incoming optical fiber inputs into one output, while maintaining the polarization state of the light. It can aslo be used as a PM splitter.

Polarization Maintaining Fused Coupler

DK Photonics uses unique fusing technique and polarization maintaining fiber to build the polarization maintaining fused coupler (PMC).The coupling ratio could be selected according to customer’s request.

1064nm Fused Coupler

DK Photonics uses unique fusing technique to build the 1064nm fused coupler.The coupling ratio could be selected according to customer’s request. It features low excess loss, small size and low insertion loss.

Single Mode Single Window Coupler

DK Photonics' Singlemode Single Window Coupler 1X2 /2X2 offer very low insertion loss, low polarization dependence and excellent environmental stability Accurate coupling ratio from 50/50 to 1/99 and fiber type 250um bare fiber

Single Mode Dual Window Coupler

Dual window coupler (DWC) is built by asymmetric coupling technique. The operating bandwidth of this normal coupler is expanding to ±40nm, and the ultra broadband coupler is expanding to ±80nm.

Single Mode Triplex Window Coupler

Built by asymmetric coupling technique, Triplex Window Coupler operating bandwidth is expanding to 1310nm, 1490nm and 1550nm three communication windows. The TWC coupler has the same coupling ratio on 1310, 1490 and 1550nm communication windows

1×3 Monolithic Single Mode Coupler

1×3 monolithic couplers have the compact package size, low insertion loss, and high reliability performance. These couplers were designed for optical modules and the fiber sensors, fiber testing instruments.

3×3 Monolithic Single Mode Coupler

3×3 monolithic couplers have the compact package size, low insertion loss, and high reliability performance. These couplers were designed for optical modules and the fiber sensors, fiber testing instruments.

1X3(3X3) Monolithic Multi-Mode Coupler

1×3/3×3 monolithic multimode couplers are designed for fiber sensors, testing instruments application. They feature low loss, small package size, and high reliability.

1×4 Monolithic Single Mode Coupler

1×4 monolithic couplers have the compact package size, low insertion loss, and high reliability performance. These couplers were designed for optical modules and the fiber sensors, fiber testing instruments.

1X4 Monolithic Triplex Window Single Mode Coupler

1X4 Monolithic Triplex Window Single Mode Coupler operating bandwidth is expanding to 1310nm, 1490nm and 1550nm three communication windows.

1X4 Monolithic Multimode Couplers

1X4 Monolithic Multimode Couplers have the compact package size, low insertion loss, and high reliability performance. These couplers were designed for optical modules and the fiber sensors, fiber testing instruments.

Multi-Mode Fiber Coupler

Multimode fiber couplers are used for multimode fiber LAN systems. DK Photonics builds these Multimode fiber couplers with low insertion loss, high reliability.

Singlemode Tree and Star Couplers

1×N and M×N coupler/ splitter modules(Singlemode Tree and Star Couplers) are cascaded with the single mode couplers. These modules are widely used for FTTH, LAN, and CATV optical networks.

All Band Fused Coupler

DK Photonics All Band Fused Coupler operating bandwidth is expanding to 1260nm~1650nm. The All Band Fused Coupler has the same coupling ratio on full band communication windows, with low excess loss and low PD

compact package(Mini Size) Fused Coupler

DK Photonics can offer compact package(Mini Size) Fused Coupler, tube size A:Ф2.4×25mm; B:Ф2.4×30mm; C:Ф3.0×35mm or shorter for a wide variety of couplers,including Wideband, Dual Window, Ultra-Low PDL types.


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