Polarization Maintaining Filter Coupler

Name: Polarization Maintaining Filter Coupler
Brand: DK Photonics
Availability: InStock

Description

The Polarization Maintaining Filter Coupler 1310&1550nm is a polarization maintaining coupler which either splits the light from the input PM fiber into two output PM fibers, or combines light signals from two PM fibers into a single PM fiber. The state of polarization can be aligned either with the slow axis or the fast axis of the PM fibers. The rugged stainless steel package is designed for high optical performance and stability. This compact device offers low excess insertion loss, low back reflection, and high extinction ratio. Split ratios from 1 to 50% are available.

The PM Filter Coupler can be used to split high power linearly polarized light into multiple paths without perturbing the line are state of polarization (SOP).It can also be used as a power tap to monitor signal power in a PM fiber system without disturbing the linear SOP of light propagating in the PM fiber. Applications include PM fiber interferometers, power sharing in polarization sensitive systems, and signal monitoring in PM fiber systems.

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

Specifications

Type:	Other / Not Specified
Configuration:	1x2
Splitting Ratio:	50/50, 40/60, 30/70, 20/80, 10/90
Wavelength:	1030 nm
Connector Type:	FC
Housing Material:	Stainless Steel, Plastic
Center Wavelength:	1030, 1064 nm
Operating Wavelength Range:	±20 nm
Max. Excess Lose:	0.8 dB
Uniformity (50/50):	0.5 dB
Max. Power Handling:	0.5, 1, 2, 5 W
Return Loss:	<50 dB

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Features

Low Insertion Loss: Ensures minimal signal loss during the light splitting process, improving overall system efficiency.
High Extinction Ratio: Provides excellent polarization maintenance, crucial for applications requiring high polarization purity.
Compact In-Line Package: Designed for easy integration into existing fiber optic systems without requiring significant space.
High Stability and Reliability: Built with robust materials and design, ensuring long-term performance under various conditions.
Versatile Applications: Ideal for use in fiber optic instruments, fiber sensors, coherent detecting, and research settings.
Customizable Split Ratios: Offers a range of split ratios from 1% to 50%, accommodating various application needs.
Power Handling Options: Supports a wide range of power handling capabilities, suitable for low to high power applications.
Operates at 1030nm Center Wavelength: Specifically designed for use around the 1030nm wavelength, with a ±20nm operating wavelength range.
Multiple Configuration Options: Available in 1x2 and 2x2 configurations, providing flexibility in system design.
High Return Loss: Ensures minimal signal reflection back into the system, preserving signal integrity.
Durable Fiber Types: Utilizes 1060-XP or PM980-XP Panda fiber for tap port, and PM980-XP Panda fiber for input and output ports, known for their durability and performance.
Temperature Resilience: Operates efficiently within a wide temperature range from -5°C to +70°C, with a storage temperature tolerance from -40°C to +85°C.
Compact and Rugged Package: The device is encased in a Ø5.5 x L35 mm package, designed for optimal optical performance and stability.
Customization Available: DK Photonics offers options for customization, ensuring the product can meet specific requirements of various applications.

Applications

Fiber Optic Sensing Systems
Ideal for use in distributed and point fiber optic sensors, including interferometric and polarization-based sensing applications for strain, temperature, and acoustic measurements.
Coherent Optical Communication
Enables stable splitting and combining of polarized light in coherent detection systems, supporting advanced modulation formats and high-speed data transmission.
Fiber Optic Gyroscopes (FOG)
Essential for splitting and combining polarized light in high-precision fiber optic gyroscopes used in navigation and inertial measurement units.
Quantum Optics and Quantum Key Distribution (QKD)
Maintains polarization integrity for quantum communication experiments and secure QKD systems, ensuring minimal signal disturbance.
Polarization Maintaining Fiber Interferometers
Used in Mach-Zehnder, Michelson, and Sagnac interferometers where maintaining polarization is critical for measurement accuracy.
Optical Power Monitoring and Tapping
Functions as a power tap to monitor signal power in PM fiber systems without disturbing the state of polarization, ideal for real-time system diagnostics.
Laser Systems and Amplifiers
Suitable for splitting or combining polarized laser light in fiber laser setups, including MOPA (Master Oscillator Power Amplifier) configurations and high-power fiber lasers.
Polarization Sensitive Optical Testing
Used in test and measurement setups where polarization control and monitoring are required, such as polarization extinction ratio (PER) testing.
Biomedical Imaging and Optical Coherence Tomography (OCT)
Supports polarization-sensitive OCT and other imaging modalities requiring stable polarization management.
Research and Development
Widely used in laboratories for photonics research, including studies on polarization effects, nonlinear optics, and fiber-based experiments.
Telecommunications and Data Centers
Applied in polarization-sensitive multiplexing, demultiplexing, and signal routing in advanced fiber optic networks.
Metrology and Precision Measurement
Ensures accurate polarization control in high-precision optical metrology systems.

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Frequently Asked Questions

What is a 1030nm Polarization Maintaining Filter Coupler (PMFC)?

A 1030nm Polarization Maintaining Filter Coupler (PMFC) is a fiber optic device designed to split light from an input polarization maintaining (PM) fiber into two output PM fibers. It operates at a wavelength of 1030nm and is engineered to maintain the polarization state of the transmitted light, ensuring high extinction ratio and low insertion loss. This makes it ideal for applications requiring precise polarization control, such as fiber optic instruments, sensors, and coherent detection systems.

What are the main applications of the 1030nm PM Filter Coupler?

The 1030nm PM Filter Coupler is commonly used in fiber optic instruments, fiber sensors, coherent detection systems, PM fiber interferometers, power sharing in polarization-sensitive systems, and signal monitoring in PM fiber networks. Its ability to maintain the state of polarization makes it essential for high-precision and research applications.

What are the key features of the DK Photonics 1030nm PM Filter Coupler?

Key features include low insertion loss, high extinction ratio, compact in-line stainless steel package, high stability and reliability, and availability of various split ratios from 1% to 50%. The device is designed for high optical performance and can be customized for high power or pulsed applications.

How does the PM Filter Coupler maintain the polarization of light?

The PM Filter Coupler uses polarization maintaining fibers and precise alignment to ensure that the input light's polarization state is preserved as it is split into two output paths. This prevents any disturbance to the linear state of polarization (SOP), which is critical for applications that rely on stable polarization.

What split ratios are available for the 1030nm PM Filter Coupler?

The 1030nm PM Filter Coupler is available with split ratios ranging from 1% to 50%, allowing users to select the optimal power distribution for their specific application, whether it's for signal monitoring, power tapping, or balanced splitting.

Can the 1030nm PM Filter Coupler handle high power or pulsed laser applications?

Yes, the coupler can be customized for high power applications (greater than 10W) using a heat sink package. For pulsed applications, it is important to inform DK Photonics of the pulse energy and peak power to ensure the device is properly configured for safe and reliable operation.

How do connectors affect the performance of the PM Filter Coupler?

Adding connectors to the PM Filter Coupler increases insertion loss by 0.3dB, reduces return loss by 5dB, and lowers the extinction ratio by 2dB. The default connector key is aligned to the slow axis, and the maximum power transmission through the connector is less than 2W. For optimal performance, consider using the device without connectors or consult DK Photonics for high power connector options.

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