DK Photonics L-Band SM Fiber Isolator

Description

The DK-XS-DT-006-A/2 L Band Polarization Insensitive Isolator from DK Photonics is a high-performance optical component designed to ensure unidirectional light transmission in advanced fiber optic systems. Utilizing the Faraday Effect in magneto-optical crystals, this isolator effectively guides optical signals in one direction while eliminating back reflections and back scattering, regardless of the polarization state. This makes it an essential device for maintaining signal integrity and protecting sensitive optical equipment from unwanted feedback.

Engineered with a unique optical path that is epoxy-free, the DK-XS-DT-006-A/2 offers enhanced high-power handling capabilities and long-term reliability. Its robust construction results in low insertion loss and high isolation, ensuring minimal signal degradation and optimal performance in demanding environments. The isolator also features low polarization dependent loss (PDL) and polarization mode dispersion (PMD), which are critical for maintaining signal quality in high-speed and high-capacity optical networks.

This L Band isolator is widely used in a variety of fiber optic applications, including Dense Wavelength Division Multiplexing (DWDM) and Coarse Wavelength Division Multiplexing (CWDM) systems, Erbium-Doped Fiber Amplifiers (EDFAs), Raman amplifiers, fiber lasers, and optical transmitters. Its excellent temperature stability and high return loss make it suitable for both laboratory and field deployments, where consistent performance and durability are required.

DK Photonics’ commitment to quality and innovation is evident in the DK-XS-DT-006-A/2, which is manufactured to stringent standards to meet the needs of modern optical communication systems. The device is available with customizable options for fiber pigtails, connector types, operating wavelengths, and power handling, allowing it to be tailored to specific project requirements. This flexibility, combined with its superior optical characteristics, makes the DK-XS-DT-006-A/2 an ideal choice for system integrators and engineers seeking reliable polarization insensitive isolators for advanced photonic applications.

Specifications

Type Of The Device:	Isolator
Operating Wavelength:	1585 nm
Max Power:	0.3 W
Min Isolation:	30 dB
Wavelength Range:	L Band
Polarization:	Insensitive
Insertion Loss (IL):	Low
Isolation:	High
Polarization Dependent Loss (PDL):	Low
Polarization Mode Dispersion (PMD):	Low
Return Loss (RL):	High
Power Handling (through Connector):	< 2 W
Fiber Pigtail Type:	0.9mm OD loose tube
Fiber Pigtail Length:	1.0 m
Connector Type:	FC/APC (all ports)

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Features

Low Insertion Loss: Minimizes signal attenuation for optimal system performance.
High Isolation: Effectively suppresses back reflection and back scattering, ensuring signal integrity.
Polarization Insensitive: Maintains consistent performance regardless of input polarization state.
Optical Path Epoxy-Free Design: Enhances high-power handling capability and long-term reliability.
Low Polarization Dependent Loss (PDL) & Polarization Mode Dispersion (PMD): Guarantees stable operation in advanced optical networks.
Excellent Temperature Stability: Reliable performance across a wide range of operating conditions.
High Reliability: Robust construction for demanding telecom and industrial applications.
Wide Wavelength Range: Optimized for L Band applications, suitable for DWDM/CWDM systems.
High Return Loss: Reduces unwanted reflections for improved signal quality.
Compact and Durable Package: Space-saving design suitable for integration into various optical systems.
Customizable Configurations: Available with different fiber types, connector options, and power handling capabilities to meet specific requirements.

Applications

Dense Wavelength Division Multiplexing (DWDM) Systems: Essential for suppressing back reflections and back scattering in high-capacity optical networks, ensuring signal integrity and improved channel isolation.
Coarse Wavelength Division Multiplexing (CWDM) Systems: Used to enhance performance and reliability by preventing unwanted feedback in multi-wavelength fiber optic communication systems.
Erbium-Doped Fiber Amplifiers (EDFA): Protects sensitive amplifier components from destabilizing back reflections, enabling stable amplification and higher output power.
Raman Amplifiers: Ensures unidirectional signal flow and prevents noise and instability caused by reflected light in high-power Raman amplification setups.
Fiber Lasers: Maintains laser stability and output quality by eliminating detrimental feedback, which can cause mode hopping or power fluctuations.
Optical Transmitters: Shields laser diodes and transmitters from back-reflected light, extending component lifespan and maintaining signal quality.
Optical Communication Networks: Widely used in long-haul, metro, and access networks to improve overall system reliability and reduce bit error rates.
Test and Measurement Equipment: Integrated into optical test setups to ensure accurate measurements by preventing interference from reflected signals.
Optical Sensing Systems: Enhances the performance of fiber optic sensors by minimizing noise and signal degradation due to back reflections.
Quantum Communication: Used in quantum key distribution and other quantum optics applications to maintain the integrity of single-photon signals.
Research and Development: Ideal for laboratory environments where precise control of optical signal direction and suppression of feedback are critical.
Medical and Industrial Laser Systems: Protects sensitive laser sources and optical components in medical imaging, laser surgery, and industrial processing applications.

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Frequently Asked Questions

What is an L Band Polarization Insensitive Isolator?

An L Band Polarization Insensitive Isolator is a fiber optic device designed to allow light to pass in one direction while blocking it in the reverse direction, regardless of the light's polarization state. It is commonly used in optical communication systems to suppress back reflection and back scattering, ensuring stable and efficient signal transmission.

What are the key features of the DK Photonics L Band Polarization Insensitive Isolator?

The DK Photonics L Band Polarization Insensitive Isolator offers low insertion loss, high isolation, optical path epoxy-free design, low polarization dependent loss (PDL) and polarization mode dispersion (PMD), high reliability, and excellent temperature stability. These features make it ideal for demanding fiber optic applications.

What applications are suitable for this polarization insensitive isolator?

This isolator is widely used in DWDM and CWDM systems, EDFA (Erbium-Doped Fiber Amplifiers), Raman amplifiers, fiber lasers, transmitters, and other fiber optic communication equipment where suppression of back reflection and back scattering is critical.

How does the DK Photonics isolator achieve polarization insensitivity?

The isolator utilizes the Faraday Effect in magneto-optical crystals, which allows it to guide light in one direction and block it in the reverse direction, independent of the light's polarization state. This ensures consistent performance regardless of polarization changes in the optical signal.

Can the DK Photonics L Band Isolator be customized?

Yes, DK Photonics offers customization for their L Band Isolators. Customers can request specific fiber pigtails, different wavelengths, power handling capabilities, connector types, and other specifications to meet their unique application requirements.

What should I consider when ordering a DK Photonics isolator with connectors?

When ordering with connectors, note that the insertion loss (IL) will be 0.3 dB higher and the return loss (RL) will be 5 dB lower compared to devices without connectors. Additionally, power transmission through the connector should be less than 2W. It is not recommended to choose a 250μm bare fiber pigtail if a connector is required.

How do I specify and order a custom L Band Polarization Insensitive Isolator from DK Photonics?

To order a custom isolator, provide the correct part number (P/N) according to DK Photonics' ordering information and include a detailed description of your requirements, such as fiber type, wavelength, power handling, pigtail length, and connector type. DK Photonics welcomes inquiries for custom solutions to meet specific needs.

Got more questions? Use the inquiry form to ask the supplier directly.