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OFR Globe









244 - 505nm

505 - 700nm

700 - 925nm

925 - 1100nm

1260 - 1650nm


Pol. Independent

Alignment Inst.

Body Types


Economically priced Utility Grade Isolators

Some applications do not require the typically superior performance of OFR Isolators. In order to meet these requirements, OFR has developed its new line of Utility Grade Isolators, whose performance and prices are more modest.

optical isolator

Look for “C” Models

Utility grade Isolators contain the letter “C” in the part number. Where models are available, they are so listed throughout this catalog. For example, IO-5C-780-LP. In some cases, “C” models might be somewhat larger than the standard models.


optical isolator

Faraday Rotators

Most OFR Isolators are available without polarizers, in which case, terminate Part Number with “-I” (see Price List).



Highest transmission, highest isolation, and highest damage resistance

OFR Isolators typically have higher transmittance and Isolation than all other isolators on the market. Further, because of certain proprietary features (covered by 5 of OFR's US patents), OFR Isolators are smaller and have higher performance than any units of equivalent aperture available anywhere.

For visible to YAG laser Isolators, OFR's Faraday Rotator crystal of choice is TGG (terbium-gallium- garnet), which is unsurpassed in terms of optical quality, Verdet constant, and resistance to high laser power. OFR TGG Isolator rods have been damage tested to 22.5 J/cm2 at 1064 nm in 15 ns pulses (1.5 GW/cm2), and to 20 kW/cm2 cw. However, OFR does not bear responsibility for laser power damage that is attributable to "hot spots" in the beam.


Other Faraday Rotator Materials

OFR produces more Isolator models covering more laser wavelengths than any other manufacturer. These models utilize numerous magneto-optic materials in addition to TGG, such as the thin film bismuth-iron-garnet (BIG) and others, depending upon wavelength, laser power, size requirement and other factors. Two materials are covered by OFR patents (4,840,464 and 5,790,299).



Optics for Research · Ph 973-579-7227 · Fax 973-300-3600 · Email: info@ofr.com