Isolator Polarization Beam Splitter (980nm/1064nm/ 1310nm/1550nm)

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Bonacom' Polarization-Maintaining Fiber-Based Isolator Polarization Beam Splitters are designed to split a single input into its orthogonal linear polarizations through two fiber outputs. 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 isolator polarization beam splitters have extremely low insertion loss, and frequently used in erbium-doped fiber amplifier or Raman amplifier.

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Specification

Parameters		Unit	Values
Stage		-	Dual	Single
Center Wavelength		nm	1310,1550	1310,1550	1064
Operating Wavelength Range		nm	±20	±20	±5
Typ. Insertion Loss at 23℃		dB	0.55	0.45	1.8
Max. Insertion Loss at 23℃		dB	0.80	0.70	2.1
Typ. Isolation		dB	51	35	35
Min. Isolation		dB	42	20	25
Min. Extinction Ratio at 23℃		dB	25	20	20
Directivity		dB	50
Min. Return Loss		dB	50
Max. Optical Power(CW)		mW	300
Max. Tensile Load		N	5
Fiber Type	Port1 & 2	-	PM Panda fiber
	Port3	-	PM Panda fiber or SMF-28E or Hi1060
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 comes from port 3 to 1,2, Here are three options of polarized state from Port 3 to Port 1 & 2:

Option 1, SM to PM,

Port 3, Circularly polarized light in,

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

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

1.Port 3, Linearly polarized light in, through slow axis,

Port 1: 100%,Linear polarized light out, through slow axis, Port 2: 0%

2.Port 3,Linearly polarized light in, through fast axis,

Port 1: 0%, Port 2: 100%,Linear polarized light out, through slow axis

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

1.Port 3, Linearly polarized light in, through slow axis,

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

2.Port 3, Linearly polarized light in, through fast axis,

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

Part Number: IPBS-1111-234-555-666-789-AAA
1111	-Center Wavelength:	1550=1550nm,1310=1310nm,......,0850=850nm
2	-Grade:	P=Perfect grade, A=A grade
3	-Core Type:	S=Single-core, D=Dual-core
4	-Option for Port 3 to 1,2:	1=Option 1, 2=Option 2, 3=Option 3
555	-Fiber Type for Port 3:	001=PM1550, 002=PM1310, 003=PM980, 004=Hi1060, 008=SMF-28E
666	-Fiber Type for Port 1.2:	001=PM1550, 002=PM1310, 003=PM980, 004=Hi1060, 008=SMF-28E
7	-Package Dimension:	0=φ5.5x35mm, 1=φ5.5x50mm, S=Specified
8	-Pigtail Type:	0=250μm bare fiber, 1=900μm loose tube
9	-Fiber Length:	0=0.8m,1=1m
AAA	-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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