--- title: Dispersion-Compensated Optical Time Delays for RF-over-Fiber Testing description: Dispersion-compensated optical time delay solutions for RF-over-Fiber testing. Effectively address precision signal timing needs without the CD effects. --- - **Phone** [919-342-5619](tel:919-342-5619) - **Toll Free** [866-269-2902](tel:866-269-2902) - **Email** [sales@m2optics.com](mailto:sales@m2optics.com) [![footer-logo](https://www.m2optics.com/hs-fs/hubfs/M2_Optics_2021/footer-logo.png?width=166&height=58&name=footer-logo.png "footer-logo")](https://www.m2optics.com/) [![Request a Call](https://no-cache.hubspot.com/cta/default/39436/fc7235a3-fa4d-4c7f-bc75-7336bfb927cc.png)](https://cta-redirect.hubspot.com/cta/redirect/39436/fc7235a3-fa4d-4c7f-bc75-7336bfb927cc) ![hero-banner-bg.jpg](https://www.m2optics.com/hs-fs/hubfs/M2Optics_Mar_2015/backgrounds/hero-banner-bg.jpg?width=1280&name=hero-banner-bg.jpg "hero-banner-bg.jpg") # Dispersion-Compensated Optical Time Delays #### Customized Delay Line Solutions for RF-over-Fiber Device Testing | ![Bare optical fiber spool delay line with SMF and DCF for RFoF](https://www.m2optics.com/hs-fs/hubfs/Bare%20Optical%20Fiber%20Spool%20Delay%20Line%20with%20SMF%20and%20DCF.jpg?width=300&height=150&name=Bare%20Optical%20Fiber%20Spool%20Delay%20Line%20with%20SMF%20and%20DCF.jpg) | - **Optical delay lines with integrated SMF and DCF** - **Precise delay/latency values and no chromatic dispersion** - **All SMF (G.652.D) fiber types available; high-performance DCF** - **Available in all Fiber Lab rack-mount, portable, or modular enclosures** - **Optional spool-only formats and custom-fabricated reels ** | | --- | --- | RF-over-Fiber (RFoF) technology is essential for advanced aerospace and wireless communications networks, supporting satellite, radar, LiDAR, and GPS systems. To ensure RFoF devices will deliver the intended performance results after field installation, the best practice for testing and certification is to use customized network simulators with optical time delays that accurately replicate the optical characteristics and latency of the fiber infrastructure. Chromatic Dispersion (CD) is an optical characteristic that causes detrimental signal distortion and degradation as fiber length and modulation increase, so the testing of higher-frequency devices and systems demands eliminating the CD effects. This is accomplished using specialized dispersion-compensated optical time delays, providing a precisely calculated and manufactured combination of single-mode (SMF) and dispersion-compensating fiber (DCF). #### Fiber Lab: Accurate Time Delays with No Chromatic Dispersion M2 Optics delivers high-precision dispersion-compensated optical time delays customized to user specifications in the most efficient solution formats. From rack enclosures containing many delay lines to modular and spool-only formats for easy integration into larger systems, Fiber Lab solutions can be built to meet any RFoF testing need. To specify a solution for your next project, contact the M2 team with the following information: - **Type/brand of G.652D SMF (Corning®, OFS®, Prysmian®, Sumitomo) and connector type** - The required time delay value(s) - Preferred solution format: Rack-mount, portable, modular, or spool-only After receiving your information, an M2 team member will respond quickly to finalize an optimized solution for your project needs. | **Multiple Solution Formats for RFoF Network and Latency Simulation Testing (partial list)** | | | | --- | --- | --- | | ![Fiber Lab 250 rack optical time delay spool solution for RFoF](https://www.m2optics.com/hs-fs/hubfs/2021%20Images/300xN/Fiber%20Lab%20250%20Network%20Simulator%20and%20Delay%20Spool%20Enclosure.jpg?width=260&height=164&name=Fiber%20Lab%20250%20Network%20Simulator%20and%20Delay%20Spool%20Enclosure.jpg) | ![Fiber Lab 800 Portable Optical Time Delay Spool Solution for RFoF](https://www.m2optics.com/hs-fs/hubfs/2021%20Images/300xN/Fiber%20Lab%20800%20Corning%20Spool%20Enclosure.jpg?width=149&height=170&name=Fiber%20Lab%20800%20Corning%20Spool%20Enclosure.jpg) | ![Sidekick Plus Modular optical time delay spool solution for RFoF](https://www.m2optics.com/hs-fs/hubfs/2021%20Images/Full_Size_Images/Sidekick%20Plus%20v3.jpg?width=200&height=130&name=Sidekick%20Plus%20v3.jpg) | | **Rack-mount** | **Portable** | **Modular** |   ### Request Information ### ![pin-icon](https://www.m2optics.com/hubfs/M2_Optics_2021/Home/search-pin.png) **Headquarters** 5621 Departure Dr, Ste 117 Raleigh, NC 27616, USA ### ![phone-icon](https://www.m2optics.com/hubfs/M2_Optics_2021/Home/call.png) **Call Us** Phone: [1-919-342-5619](tel:1-919-342-5619) Toll Free: [866-269-2902](tel:866-269-2902) ### ![email-icon](https://www.m2optics.com/hubfs/M2_Optics_2021/Home/email.png) **Email Us** [sales@m2optics.com](mailto:sales@m2optics.com) [![M2 Optics](https://www.m2optics.com/hs-fs/hubfs/M2_Optics_2021/footer-logo.png?width=166&height=58&name=footer-logo.png "M2 Optics")](https://www.m2optics.com/) Offering customized solutions for fiber network simulation, optical time delay, and network testing applications that allow each user to specify exactly what they need. 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