Polarization Beam Combiner (980nm/1064nm/ 1310nm/1550nm)

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Bonacom' Polarization-Maintaining Fiber-Based Polarization Beam Combiners (PBC) are designed to either combine two orthogonal polarizations into a single fiber. The devices feature two legs of polarization-maintaining fiber on one side of a calcite prism and one leg of polarization-maintaining fiber on the other. These polarization beam combiners are frequently utilized to combine the light from two pump lasers into a single fiber to increase the input into an erbium-doped fiber amplifier or Raman amplifier.

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Specification

Parameters		Unit	Values
Grade		-	P	A	P	A
Center Wavelength		nm	1310,1550		1064,980
Operating Wavelength Range		nm	±40		±20
Typ. Insertion Loss at 23℃		dB	0.4	0.5	0.6	0.7
Max. Insertion Loss at 23℃		dB	0.6	0.7	0.8	0.9
Min. Extinction Ratio at 23℃		dB	22	20	22	20
Min. Directivity		dB	50
Min. Return Loss		dB	50
Max. Optical Power(CW)		mW	300
Max. Tensile Load		N	5
Fiber Type	Port 1 & 2	-	PM Panda fiber
	Port 3		SMF-28E, Hi1060 or PM Panda fiber
Operating temperature		℃	-5~+70
Storage temperature		℃	-40~+85
For device with connector, IL is 0.3dB higher, RL is 5dB lower, ER is 2dB lower.
The default connector key is aligned to slow axis.

Routing path is from port 1, 2 to 3, Here are three options of polarized state from Port 1, 2 to Port 3:

Option 1, PM to SM,

Port 1: 50%,Linear polarized light in, through slow axis, Port 2: 50%,Linear polarized light in, through slow axis

Port 3, 100%, Circularly polarized light Out,

Option 2: PM to PM, port 1 is slow axis 0° aligned to port 3

Port 1, 2, only work through slow axis, blocked the fast,

The slow axis of port 1 is aligned to the slow axis of port 3,

The slow axis of port 2 is aligned to the fast axis of port 3,

Option 3:PM to PM, port 1 is slow axis 45° aligned to port 3

Port 1, 2, only work through slow axis, blocked the fast,

Port 1 or 2, 100%,Linear polarized light in, through slow axis,

Port 3, 25% linear polarized light out, through slow axis, and 25% by the fast.

Part Number: PBC-1111-23-444-555-678-999
1111	-Center Wavelength:	1310=1310nm,1550=1550nm,1064=1064nm,0980=980nm
2	-Grade:	P=Perfect grade, A=A grade
3	-Option for Port 3 to 1,2:	1=Option 1, 2=Option 2, 3=Option 3
444	-Fiber Type for Port 3:	001=PM1550, 002=PM1310, 003=PM980, 004=Hi1060, 008=SMF-28E
555	-Fiber Type for Port 1.2:	001=PM1550, 002=PM1310, 003=PM980, 004=Hi1060, 008=SMF-28E
6	-Package Dimension:	0=φ5.5x35mm, 1=φ5.5x50mm, S=Specified
7	-Pigtail Type:	0=250μm bare fiber, 1=900μm loose tube
8	-Fiber Length:	0=0.8m,1=1m
999	-Connector for Port 1,2,3:	0=FC/UPC,1=FC/APC,2=SC/UPC,3=SC/APC,4=LC/UPC,5=LC/APC, N=None

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