Fiber Port Cluster 2 ⇾ 6 with shutters

Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02
Fiber Port Cluster 2-6 Mod02


Fiber Port Cluster type 48-FPC-2-6-xxx_Mod02 for two input sources with the same wavelength.
  • Configuration 2 ⇾ 6
  • Highly efficient coupling into polarization-maintaining fiber cables
  • Electro-magnetic shutters at the six output ports
  • 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 2 ⇾ 6 is a compact opto-mechanical unit that combines two fiber-coupled sources with same wavelengths and then splits the combined radiation into 6 output fiber cables with high efficiency and variable splitting ratio. An electro-magnetic shutter is placed at each of the six output ports.

Optical Setup
The two input ports are fiber-coupled to PM fiber cables. Polarizers define the input polarization which is necessary for a long term stable splitting ratio.
Two photo diodes right after each input port allow for a continuous monitoring of the radiation. The two input sources are superimposed by means of a polarization beam splitter.
Subsequently, the radiation splitting is achieved by using a cascade of rotary half-wave plates in combination with polarization beam splitters. By use of the rotary half-wave plates, almost any desired splitting ratio can be achieved, see the tech note FiberPortCluster_2-6_Balancing.pdf for the limitations.
At the output ports further polarizers are placed in order to define the polarization at output of the system.
An additional attenuator at each output port allows for a fine-balancing. An electro-magnetic shutter is placed at each of the six output ports.

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. 

How to order
For a detailed quotation please additionally specify

  • Wavelength
  • Cable lengths
  • Connector types

Technical data


Order Code
2 ⇾ 6
electro-magnetic shutters
556, 773, 780, 852 nm
Fiber type
Connector type
FC APC (standard)
Cable lengths
Wave plate type
low order (773 nm: zero order)
Power monitor
BPX-61 (SMA)
≥ 65 % @ 780 nm
Polarization Extinction Ratio
≥ 23 dB @ 780 nm
see technote
approx. xxx g
* Different wavelength combinations on request


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