Sorry, this product is no longer offered for sale. The recommended replacement product is ISO-FRDY-04-638-N.

Faraday Optical Isolator, Medium Power, 4 mm Aperture, 650 nm Center.

The ISO-04-650-MP Faraday Optical Isolator is essentially a uni-directional light valve. It is used to protect a laser source from destabilizing feedback or actual damage from back-reflected light. This 650 nm medium power free space optical isolator is packaged in a compact cylindrically shaped magneto-optic device with a base plate for ease of mounting into an optical train. It has a 4 mm clear aperture and a 600 to 680 nm wavelength range. The ISO-04-650-MP uses a higher damage threshold BK-7 polarizing beamsplitter (PBS) and provides double escape ports for applications where rejected power exceeds 0.5 W.

SF1 Polarizing Beamsplitter (PBS) Cube

Our medium power Faraday optical isolators use high damage threshold SF1 polarizing beamsplitter (PBS) cubes.

High Efficiency Performance

The TGG crystal utilized in our Faraday isolators creates a large Verdet constant that ultimately describes the strength of the Faraday effect and provides effective isolation of back-reflected light. Additionally, these isolators have low absorption as a function of the TGG crystal and polarizers, resulting in reliable transmission of light in the forward direction.

Easy Placement into Optical Train

These isolators are packaged in a compact, cylindrically-shaped magneto-optic device with a base plate for easy mounting into an optical train.

Specifications

Technical Specs

Center Wavelength
650 nm
Spectral Range
600–680 nm
Clear Aperture
4 mm
Isolation
27–32 dB
Transmission
>88%

Damage Threshold
2 kW/cm²
Pulse Damage Threshold
1 J/cm²
Material
Terbium Gallium Garnet

Center Wavelength
650 nm
Spectral Range
600–680 nm
Clear Aperture
4 mm
Isolation
27–32 dB
Transmission
>88%

Damage Threshold
2 kW/cm²
Pulse Damage Threshold
1 J/cm²
Material
Terbium Gallium Garnet

Resources & Downloads

Application Notes

Feedback Prevention with Optical Isolators(11.6 MB, PDF)

2D Product Drawings

ISO-04-0650-MP(157.6 kB, PDF)

Manuals

MP ISO Faraday Isolators User's Manual(732.8 kB, PDF)

Other

MKS EU RoHS3 Cert - Faraday Optical Isolators(125 kB, PDF)

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