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Polarization Beam Combiner.

The Polarization Beam Combiner/Splitter is a compact high performance component that combines two orthogonal polarization signals into one output fiber. The most common application is to combine the light of two pump lasers into a single fiber to double the pump power to an Erbium-Doped Fiber Amplifier (EDFA) or a Raman Amplifier. The typical configuration uses two PM fibers for the input and the SM fiber for the output. The device can also be used as a beam splitter. The devices are based on Bulk optics.

Specifications
Wavelength	1060,1300,1480, 1550 and 1620 nm
Fiber configuration	1x2
Polarization Axis	Slow axis or fast axis
Bandwidth nm	+/-40
	Premium P Grade	A Grade
Extinction Ratio(cross talk) dB	>22	> 20
Insertion	0.4 typ. and max 0.6	0.5 typ. and 0.7 Max
Coupling Ratio	1, 5, 10, 50 or 99%
Directivity dB	50
Input Power mW	500
Return loss dB	50
Storage temp.	-5 to 85°C
Operating Temperature	-5 to 80 °C
Fiber type	PM Panda fiber on Port 1 and 2, SMF or PM on port 3
Pigtail option	1m fiber standard or 0.5m, 900um optional
Package size	5.5x 55mm (bare fiber)

1: All specifications for operation with Slow axis.
2: Center wavelength can be optimized for different applications.
3: Smaller package dimension can also be custom made.
4: All specifications for operation with Slow axis.
5: Center wavelength can be optimized for different applications.
6: Others fibers like E-core, Tiger or Bow tie are also available on request.
7: PM couplers can be integrated with In Line fiber Polarizers or other PM devices on request.
8: Specifications can be tailored to meet customer’s requirements.
9: Devices are designed to meet the Telcordia qualification.
10: All specifications are worst case for the wavelength range selected; actual products commonly exhibit better specification.

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