Single-Mode Cables for Precision Light Transport
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Frequently Asked Questions
Single-Mode Cables for Controlled Light Transport
Single-Mode Cables are fiber optic patch cords or jumper assemblies built from single-mode fiber to transport light over long distances with minimal dispersion. By supporting only the fundamental mode, these cables maintain beam quality, tight spatial mode control, and stable polarization (for PM variants), making them essential for telecom, metrology, and coherent detection systems.
On FindLight, Single-Mode Cables are offered with various fiber types (e.g., ITU-T G.652, G.657 bend-insensitive, PM single-mode) and are optimized for specific wavelength windows such as 980 nm, 1064 nm, 1310 nm, and 1550 nm. Assemblies typically feature robust jacketing and standardized connectors for seamless integration into existing fiber networks and laboratory setups.
Typical Specifications of Single-Mode Cables
- Core/Cladding Diameter: Standard 8–10 µm core with 125 µm cladding for telecom-grade single-mode fiber; PM fibers include stress-applying parts.
- Operating Wavelength: Optimized for O-, C-, or L-band (e.g., 1310/1550 nm) or specific NIR laser lines such as 980 nm and 1064 nm.
- Numerical Aperture (NA): Typically 0.11–0.15, defining coupling tolerance and mode confinement.
- Attenuation: Low loss, often <0.35 dB/km at 1310 nm and <0.25 dB/km at 1550 nm for G.652-type Single-Mode Cables.
- Connector Types: FC/PC, FC/APC, SC, SC/APC, LC and others, with angle-polished options to minimize back-reflection.
- Jacket and Diameter: 0.9 mm buffer, 2–3 mm ruggedized jackets, and optional armored designs for harsh environments.
- Length and Tolerance: Standard lengths from tens of centimeters to hundreds of meters, with custom lengths available.
Applications and Buyer Guidance
Single-Mode Cables are used in long-haul and access telecommunications, fiber-to-the-home links, coherent and high-speed data transmission, fiber sensors, interferometers, and laser delivery in R&D systems. PM Single-Mode Cables are preferred where polarization stability is critical, such as quantum optics, coherent detection, and high-resolution spectroscopy.
When selecting Single-Mode Cables on FindLight, compare core parameters (fiber type and operating wavelength), connector configuration (PC vs APC, connector style), and cable construction (jacket diameter, ruggedization, minimum bend radius). Evaluate insertion loss, return loss, and, for PM Single-Mode Cables, extinction ratio and keying of connectors relative to the slow axis.
For each listing, you can review detailed datasheets, confirm compatibility with your existing network or optical bench layout, and directly request quotes from multiple suppliers. No registration is required to submit inquiries for Single-Mode Cables, which simplifies technical comparison and sourcing for both procurement engineers and R&D teams.