JW3309M Manual Polarization Controller

JW3309M

Manual Polarization Controller

Precision manual polarization control with independently rotatable optical elements

The JW3309M manual polarization controller is designed for precise polarization adjustment in fiber-optic testing and laboratory applications. It incorporates three independently rotatable optical elements: a polarizer, quarter-wave plate, and half-wave plate, to provide flexible control of the polarization state.

Compared with fiber-squeezing and fiber-winding polarization controllers, this manual polarization controller offers finer adjustment and reduced mechanical rebound, helping users maintain and reproduce polarization settings more consistently during testing and experimentation.

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Features

Three-Element Rotary Design
Three independently rotatable elements: a polarizer, quarter-wave plate, and half-wave plate, provide precise manual polarization adjustment.
Flexible Polarization Control
The combination of polarization elements supports 1/2 or 1/4 wave plate polarization adjustment and state-preparation requirements.
Stable Mechanical Adjustment
The low-rebound design helps maintain the selected setting after adjustment for more stable polarization control.
High Repeatability
Supports repeatable adjustment and restoration of previous settings, making it easier to reproduce polarization states and test conditions.
Intuitive Manual Operation
The rotary adjustment mechanism provides straightforward, flexible control for applications requiring frequent polarization-state changes.

Typical Applications

Fiber-Optic Sensing Systems
Used for polarization-state matching and optimization in fiber-optic gyroscopes and interferometric sensors, helping improve signal-to-noise ratio and system stability.
Optical Communication R&D
Used in coherent optical communication and polarization-maintaining systems to manually vary the polarization state and evaluate or compensate for polarization-dependent loss.
Optical Component Characterization
Suitable for evaluating polarization-sensitive components such as modulators, isolators, and beam splitters under different input polarization states.
Laboratory Research
Provides flexible manual polarization control and state preparation for research in areas such as quantum optics and integrated optics.

Specifications

Wavelength	1550nm
Insertion loss	≤0.9dB (without polarizer)
Polarization extinction ratio (PER)	> 40dB
Return loss	> 50dB
Connector type	FC/PC or FC/APC (default APC)
Optical fiber type	Single-mode optical fiber SMF-28
Module type	Polarizer + 1/4 wave plate + 1/2 wave plate
Rotation angle	360°
Dimensions	8432 48mm
Type selection	Model- wavelength - connector type (example: JW3309M-1550-FC/APC)

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Fiber Optic Test Equipment Manufacturer

Since 1998

We provide various testing equipment, measuring equipment, and monitoring equipment for the optical communication industry, and have accumulated a large number of professional technologies and mature solutions.

Engage in the research and development and manufacturing of desktop and handheld photoelectric testing instruments
The annual output of photoelectric testing equipment reaches 500,000 units
Passed ISO9001 series quality certification, 14001 environmental certification, CE certification, FC certification, RoHS certification, and many other international certificates
All products have 100% independent intellectual property rights, and provide OEM/ODM services
Our products have been recognized by Japan's NTT Communications, South Korea's SK Telecom, Deutsche Telekom, and the United States' Verizon, and have reached cooperation