Innolume Develops Highisolation 1310nm PM Fiber Optic Isolator

In optical signal transmission, interference from reflected light and crosstalk presents significant challenges that degrade signal quality and potentially damage sensitive optical components. These issues become particularly critical in high-precision communication and sensing applications where stability and accuracy are paramount. Addressing this technical challenge, the OID1310000PM58DBXXXX PM fiber-coupled optical isolator delivers exceptional performance for 1310nm wavelength optical systems.

Unmatched Isolation Performance with Minimal Signal Loss

The isolator's standout feature is its remarkable 58dB peak isolation capability. This specification indicates that backward-propagating light signals are attenuated to approximately one-millionth of their original intensity, effectively eliminating nearly all reflected light and crosstalk while maintaining signal purity. Such high isolation performance proves particularly valuable for protecting lasers and optical amplifiers—components especially vulnerable to back reflections—thereby enhancing their operational stability and longevity.

Equally impressive, the device maintains exceptionally low insertion loss of just 0.6dB. This minimal signal attenuation ensures that the original signal strength remains virtually unaffected as it passes through the isolator, preserving transmission efficiency.

Reliable Protection in Demanding Environments

Reflected signals in optical communication systems not only compromise quality but may also damage light sources. The isolator's 55dB return loss specification effectively prevents signal reflections from fiber ends or connectors, providing comprehensive protection for entire optical systems. Furthermore, its 23dB extinction ratio ensures unidirectional signal propagation, eliminating unwanted polarization crosstalk during transmission.

High-Power Handling and Precision Engineering

Designed for medium-power applications, the isolator handles optical power levels up to 0.5W. Its PM1300 polarization-maintaining fiber preserves signal polarization state—a critical feature for applications requiring precise polarization control.

Compact Design for Easy Integration

Measuring just 55×5.5×5.5 mm, the compact double-stage isolator integrates seamlessly into various optical systems while conserving valuable space. This dual-stage architecture enhances isolation performance, ensuring reliable operation in complex optical environments.

With its combination of superior isolation, minimal insertion loss, excellent return loss, power handling capacity, and polarization maintenance—all in a space-efficient package—the OID1310000PM58DBXXXX PM fiber-coupled optical isolator delivers high-performance, reliable solutions for 1310nm wavelength applications in telecommunications, sensing, and scientific research.