High Power Polarization Maintaining Isolator (GK-HI Series)

The 980nm high-power polarization maintaining isolator is an important innovation in photonics technology, designed specifically to meet high-precision and high-performance requirements. This isolator utilizes the Faraday effect of magneto-optical crystals to isolate reflected light, allowing only light to propagate in a single direction, thereby protecting the light source from adverse effects caused by back reflection or signal generation. Backreflection may damage the laser or cause mode hopping, amplitude changes, or frequency shifts. In high-power applications, it may also cause instability or power spikes.

The main features of this isolator include:

Low insertion loss: typical value is 0.8 dB, maximum not exceeding 1.3 dB, ensuring efficient signal transmission

High isolation: The typical peak isolation is 32 dB, and the minimum isolation is 25 dB, providing excellent back reflection isolation

High power processing capability: capable of withstanding up to 20 watts of continuous optical power, with a maximum peak power of 10KW, suitable for high-power fiber lasers and amplifiers

High return loss: The minimum return loss is 45 dB, minimizing signal leakage and improving the efficiency of the laser system to the greatest extent possible

Excellent environmental stability: The working temperature range is 0~+70 ℃, and the storage temperature range is -40~+85 ℃, ensuring stable performance under different environmental conditions

Polarization extinction ratio: The polarization extinction ratio (PER) is 18 dB (Type B) or 20 dB (Type F), which maintains the polarization state of light and is crucial for applications that require high fidelity signal integrity

These characteristics make the 980nm high-power polarization maintaining isolator an ideal choice for fields such as fiber lasers, fiber amplifiers, fiber sensing, fiber communication, and scientific research. By precisely controlling the polarization state and power distribution of light, these isolators help improve the overall performance and reliability of the system.ble operation under challenging conditions.