Fiber Port Cluster 1 ⇾ 2 with shutters

Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01
Fiber Port Cluster 1-2 Mod01


Fiber Port Cluster for one input source
  • Configuration 1 ⇾ 2
  • Electro-magnetic shutters at the two output ports
  • Highly efficient coupling into polarization-maintaining fiber cables
  • Adjustable splitting ratio
  • Compact, rugged, transportable and sealed opto-mechanical units
  • Fully fiber-coupled
  • Very high long-term stability, efficiency and reproducability


This Fiber Port Clusters 1 ⇾ 2 Mod01 is a compact opto-mechanical unit that splits a fiber-coupled source into 2 output fiber cables with high efficiency and variable splitting ratio. An electro-magnetic shutter is placed at each of the two output ports.

Optical Setup
The input port is fiber-coupled to a PM fiber cable. A polarizer defines the input polarization which is necessary for a long term stable splitting ratio.
A photo diode right after the input port allows for a continuous monitoring of the radiation.
Subsequently, the radiation splitting is achieved by using a rotary half-wave plate in combination with a polarization beam splitter. By use of the rotary half-wave plate, almost any desired splitting ratio can be achieved.
At the output ports further polarizers are placed in order to define the polarization at output of the system.

Fiber Couplers
A fundamental component of a Fiber Port Cluster is the Laser Beam Coupler, which is the input into the opto-mechanical unit collimating the input radiation and, finally, couples the radiation back into the polarization-maintaining fiber cables. The stability of the total Fiber Port Cluster is determined by the stability of the laser beam coupler.

Electro-magnetic Shutters
An electro-magnetic shutter is placed at each of the two output ports. For a description and further technical specifications, please refer to the electro-magnetic shutter type 48EMS-6.

How to order
For a detailed quotation please additionally specify

  • Wavelength
  • Cable lengths
  • Connector types

Technical data


Order code
1 ⇾ 2
electro-magnetic shutters
461, 689, 767, 780, 852 nm
Fiber type
Connector type
FC APC (standard)
Cable lengths
Wave plate type
low order
Power monitor
BPX-61 (SMA)
≥ 75 % @ 780 nm
Polarization Extinction Ratio
≥ 23 dB @ 780 nm
better 3 %
* Different wavelength combinations on request
Dimensions (w/o fiber cables)
180 x 125 x 70 mm


Dimensional drawing
980129090619_kuz.pdf (Dimensional drawing)
STEP model
980129090619.stp (STEP model)
STEP model
980129090619.stp (STEP model, for registered users only)
48-FPC-1-2_Mod01-780_Example.pdf (Manual)
48-FPC-1-2_Mod01-780_Example.pdf (Manual, for registered users only)
Article_Cluster.pdf (Technote)

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