Multimode Dual Fiber Collimator (GK-MMC Series)

Multimode Fiber Collimators are essential components in fiber optic systems, particularly for applications that require in-line integration with devices such as isolators and free-space wavelength division multiplexing (FWDM) systems. These collimators are designed to have low insertion loss and high return loss, which are critical for maintaining signal integrity and minimizing reflections that can cause interference or damage to sensitive optical components.

To handle high power applications, these collimators undergo unique processing and are coated with high-quality anti-reflective (AR) coatings that enable them to withstand optical powers up to the levels required for the application. This is crucial for applications such as material processing or high-power laser systems where the optical power can be several watts or even hundreds of watts.

For high-power applications, special considerations are made to ensure the collimators can handle the intense light without damage. This includes the use of air-gap designs in connectors to prevent heat damage, the use of end caps on fibers to reduce power density at the glass/air interface, and potentially the use of photonic crystal or "holey" fibers for improved power handling.