Selection / comparison
How to Select an Optical Isolator
Choose an optical isolator by wavelength, power, polarization, fiber and package.
Use this page when the application is known but the component specification still needs to be narrowed before RFQ.
Selection logic
Wavelength first
Match the isolator center wavelength and operating range to the laser or amplifier. Start with the nearest listed standard wavelength rather than a generic isolator.
Then check optical power
Low-power in-line isolators and TGG high-power isolators are different product families. Do not choose a housing only by wavelength.
PM or SM
Use PM versions when polarization extinction ratio matters. Use SM versions where polarization maintenance is not required.
Package and connectors
High-power packages are larger. Connectors can reduce power handling on some products, so connectorized requests should be reviewed before quotation.
Quick comparison
| Need | Recommended direction |
|---|---|
| 532/633 nm, up to 2 W | 532/633nm In-Line Optical Isolator |
| 1030/1064 nm, up to 10 W | TGG High Power Isolator |
| 20 W+ around 780–1080 nm | Higher-power TGG series |
| PM compact package | Mini / PM isolator family |
Have a target specification already?
Use Component Finder or send the known parameters directly to engineering review.