2000nm High Power Polarization Beam Combiner/Splitter

The 2000nm High Power Polarization Beam Combiner/Splitter can be used either as a polarization beam combiner to combine light beams from two PM input fibers into a single output fiber, or as a polarization beam splitter to split light from an input fiber into two output fibers of orthogonal polarization states. They are ideal for high power fiber laser and high power fiber amplifier applications.

DK Photonics offers a large selection of PBS/C. These devices can handle powers rang from 300mW to 50W or other on request and have center operating wavelengths ranging from 780 nm to 2050nm.

If you do not see a standard Polarization Beam Combiner/Splitter that meets your needs, we welcome the opportunity to review your desired specification and quote a custom Polarization Beam Combiner/Splitter. Requests for custom fiber pigtails, different wavelengths and handling power of operation or other specific needs will be readily addressed.

PBS-principle-cube

Performance Specifications

PARAMETER		UNIT	VALUE
Operating wavelength		nm	2000
Operating bandwidth		nm	±40
Typical insertion loss		dB	0.60
Max. insertion loss		dB	1.0
Min. Extinction Ratio		dB	18
Return loss		dB	>50
Directivity		dB	>50
Max. Power Handling		W	5, 10, 20,30
Tensile Load		N	< 5
Fiber Type	Port 1	–	SMF-28e, or SM1950, or PM1950, or LMA DC fiber
	Port2 & Port 3	–	PM1550 or PM1950, or LMA DC fiber (same to port 1)
Operating temperature		℃	-5 ~ +70
Storing temperature		℃	-40 ~ +85
Package dimension		mm	14x12x8

Above specifications are for device without connector. All parameters are tested at room temperature.
For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. The default connector key is aligned to slow axis. Power transmits through the connector less than 2W.
For >50W high power applications, we will use heat sink package, contact DK Photonics for details.
Since the light is bidirectionally reversible, PBC can also be used as PBS.

Package Dimension

Power<30W: High Power Polarization Beam Combiner

Power ≥30W: 100w High Power Polarization Beam Splitter

*Due to ongoing design improvements, the package size is subject to change. For high power applications, we will use heat sink package, contact DK Photonics for details. Please contact DK Photonics for confirmation.

Order information

P/N: HPPBC/PBS-①-②-③-④-⑤-⑥

When you inquire, please provide the correct P/N number according to our ordering information and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.

①	②	③	④	⑤	⑥
Operating Wavelength	Power Handling(Total)	Fiber type (Port 1)	Pigtails Diameter	Fiber Length	Connector
1940:1940nm 2000:2000nm 2050:2050nm XX: Others	5:5W 10:10W 20:20W 30:30W	1:SM fiber 3:PM fiber, slow axis aligned to port 3 XXX: fiber name	25:250μm 90:900μm XX: Others	08:0.8m 10:1.0m XX: Others	00: None FP: FC/PC FA: FC/APC XX: Others

Part Number Example: HPPBS-P-2000-10-PM1950-25-10-00

Description: 2000nm High Power Polarization Beam Splitter, 10W power, PM1950 fiber at all port, with bare fiber, 1.0m fiber length, and no connectors.

Ordering Information for Custom Parts:

If you need to customize other specifications, please provide detailed description for your requirement.

More Details Regarding Routing path:

High Power Polarization Beam Combiner/Splitter

Polarization Beam Combiner:

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 fiber

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 fiber, 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,

Polarization Beam Splitter:

Routing path is 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 fiber

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

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