The GKER Photonics 2 µm Polarization Insensitive Circulator (GK-FCIR Series) is a state-of-the-art optical component designed to meet the demanding needs of modern fiber optic systems. This circulator is specifically engineered for operation in the 2 µm wavelength range, making it ideal for applications requiring precise signal routing and robust performance. It operates by directing incoming optical signals from Port 1 to Port 2 and then from Port 2 to Port 3, ensuring seamless signal transmission with minimal loss and high isolation.

One of the standout features of the GK-FCIR Series is its polarization insensitivity, which ensures consistent performance regardless of the polarization state of the incoming light. This makes it an excellent choice for systems where polarization effects can lead to signal degradation. The circulator also boasts a low insertion loss of just 1.5 dB at 23°C and a minimum isolation of 16 dB, ensuring that your signals maintain their integrity throughout the optical path.

With a maximum crosstalk of 40 dB and a return loss of 50 dB, the GK-FCIR Series guarantees minimal interference and reflection, which is crucial for maintaining high signal quality in complex optical networks. Additionally, the circulator is capable of handling high optical power, with options ranging from 0.3 W to 5 W, and can withstand peak powers of up to 10 kW for nanosecond pulses, making it suitable for high-power laser applications.

The circulator is built to endure challenging environments, with an operating temperature range of -5°C to +70°C and a storage temperature range of -40°C to +85°C. It is available with various fiber types, including SMF-28, Nufern SM 1950, and Thorlabs SM 2000, and can be customized with different connector types and fiber jackets to suit specific application needs.

With its compact design, high reliability, and versatile configuration options, the GKER Photonics 2 µm Polarization Insensitive Circulator (GK-FCIR Series) is the perfect choice for a wide range of optical communication and sensing applications. Whether you’re working in fiber laser systems, optical amplifiers, or other high-performance optical setups, this circulator provides the precision and durability you need to ensure optimal system performance.