Fiber Optic Circulator Manufacturers

Leading fiber optic circulator manufacturers include Thorlabs, Agiltron, OZ Optics, Opneti, and a directory of 62 global suppliers listed on GoPhotonics.Key Manufacturers and OfferingsThorlabs produces single-mode (SM) and polarization-maintaining (PM) circulators suitable for advanced communication systems, fiber sensors, and optical coherence tomography (OCT). They also offer wideband multimode circulators for fluorescence, spectroscopy, and optogenetics applications, supporting a broad range of wavelengths and light sources . Agiltron specializes in high-performance fiber optic isolators and circulators, offering narrowband and broadband configurations across 350 nm to 2100 nm. Their products include polarization-independent and polarization-maintaining versions, with high-power capabilities up to kilowatt levels. Agiltron also provides custom designs and integrated power monitoring for forward and backward light . OZ Optics manufactures miniature inline circulators for OEM applications, available in single-mode or polarization-maintaining fibers. Their circulators are used in WDM demultiplexors, Raman pump systems, double-pass amplifiers, and chromatic dispersion compensation modules. OZ Optics supports custom port alignment, high extinction ratio connectors, and cube-style circulators for non-telecom wavelengths or high-power applications . Opneti Communications focuses on passive optical components, including opto-mechanical parts and telecom test instrumentation. They provide high-quality, cost-effective components with extensive manufacturing capabilities for various optical applications . GoPhotonics Directory lists 62 fiber optic circulator manufacturers worldwide, allowing users to filter by location and capabilities to find suitable suppliers for specific applications .Considerations for SelectionWhen choosing a manufacturer, consider:Wavelength range: Ensure the circulator supports your operational spectrum (e.g., 1310 nm, 1550 nm, or broadband ranges).Polarization requirements: Decide between polarization-maintaining or polarization-independent designs.Power handling: High-power applications may require specialized circulators rated for kilowatt levels.Customization: Some manufacturers offer custom designs for OEM or research applications.Application type: Telecommunications, sensing, spectroscopy, or laboratory setups may require different circulator specifications. These manufacturers provide a range of standard and custom solutions to meet diverse optical system requirements.