1064 nm Optical Isolator

>1064 nm Optical Isolator
1064 nm Optical Isolator 2019-06-19T22:17:14+00:00
This 1064 nm optical isolator is a fiber-coupled in-line polarization-independent isolator that transmits all polarized light (not just the light polarized in a specific direction) efficiently in one direction but block transmission in the opposite direction; i.e. it’s the optical equivalent of a one-way hydraulic valve or an electrical diode. It’s used extensively to protect against reflections, which can corrupt some measurements or damage lasers and amplifiers. This fiber-coupled 1064 nm optical isolator can be single or double/dual stage depending on the degree of required optical isolation of the propagating light. Related Products

Function of Fiber-coupled 1064 nm Optical Isolator (Fiber Optic Isolators)

The 1064nm fiber optic isolators are often used for protecting amplifiers against back-reflected light, but also in fiber interferometers or within fiber ring lasers to ensure unidirectional operation.
As light travels along fibers and connectors, there are many opportunities for back reflection. These reflections usually happen when light passes through an interface perpendicular to the direction of light propagation. An angled interface, such as in an APC connector, significantly reduces such reflections. However, in most cases one does not have control over all the link parameters, and it is necessary to reduce the effects of any potential reflection on sensitive devices such as DFB lasers. In such cases, a fiber-coupled optical isolator is used to reduce the amount of light reaching back to the laser.


Polarization-Independent Optical Isolator (1064nm)


1064 nm Optical Isolator Fiber Optic Isolators 1064nm
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  • Polarization-Independent
  • Low Insertion Loss
  • High Isolation
  • High Reliability and Stability


  • Communication Systems
  • Testing Instruments
  • Fiber Sensor
  • Research


Specifications of Polarization-Independent 1064 nm Optical Isolator
Center Wavelength (nm)10641064
Operating Wavelength Range (nm)±5±5
Typ. Peak Isolation at 23 ℃ (dB)4055
Min. Isolation at 23 ℃ (dB)3245
Typ. Insertion Loss at 23 ℃ (dB)1.52.4
Max. Insertion Loss at 23 ℃ (dB)1.83.2
Return Loss (dB)≥ 50
Polarization Dependent Loss at 23 ℃ (dB)≤ 0.15
Optical Power Handling (CW) (mW)≤ 300
Tensile Load (N)≤ 5
Operating Temperature ( ℃ )-5 to +50
Storage Temperature ( ℃ )-40 to +85


  • The fiber-coupled 1064 nm optical isolator (in-line polarization-independent isolator) is customizable, and the above specifications are subject to change without notice.
  • For device with connectors, IL is 0.3dB higher, RL is 5.0dB lower.
  • Bare fiber should not support the weight of the connector. So that if any connectors needed, for the pigtail type it’s better to choose the 900μm loose tube jacket instead of the 250μm bare fiber.
  • For product customization or special requirements, please contact Lfiber’s sales department for availability.


Package Dimensions


1064 nm Optical Isolator Fiber Optic Isolators 1064nm



Ordering Information for Polarization-Independent 1064 nm Optical Isolator
WavelengthStageFiber TypePackage DimensionsPigtail TypeFiber LengthConnector Type
1064nmSingle-stageHi1060Φ5.5×35 mm250μm bare fiber0.5mNsone
Dual-stageSpecified900μm loose tube0.8mFC/UPC