# \#wiki-component **URL:** https://forum.ofscn.net/tag/wiki-component/33.md [Latest](https://forum.ofscn.net/latest.md) · [Categories](https://forum.ofscn.net/categories.md) · [Tags](https://forum.ofscn.net/tags.md) --- ## [What is a "splitting ratio"?](https://forum.ofscn.net/t/what-is-a-splitting-ratio/2872)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [September 17, 2026, 4:11am UTC](https://forum.ofscn.net/t/what-is-a-splitting-ratio/2872 "2026-09-17T04:11:42Z")
What do 1:1 splitting and 1:9 splitting mean? How is light allocated proportionally? --- ## [What is Fiber Mode Field Diameter (MFD)?](https://forum.ofscn.net/t/what-is-fiber-mode-field-diameter-mfd/405)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 5\ **Last updated:** [June 18, 2026, 1:27am UTC](https://forum.ofscn.net/t/what-is-fiber-mode-field-diameter-mfd/405 "2026-06-18T01:27:04Z")
Why does an MFD mismatch cause significant loss when splicing single-mode fibers from different manufacturers? --- ## [What is "impedance matching" (or "index matching" in optical contexts) for fiber optic patch cords?](https://forum.ofscn.net/t/what-is-impedance-matching-or-index-matching-in-optical-contexts-for-fiber-optic-patch-cords/1787)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [June 1, 2026, 1:54pm UTC](https://forum.ofscn.net/t/what-is-impedance-matching-or-index-matching-in-optical-contexts-for-fiber-optic-patch-cords/1787 "2026-06-01T13:54:24Z")
光纤连接中存在类似电缆的阻抗匹配问题吗？ --- ## [How fast does light travel inside an optical fiber?](https://forum.ofscn.net/t/how-fast-does-light-travel-inside-an-optical-fiber/1313)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [March 30, 2026, 1:24pm UTC](https://forum.ofscn.net/t/how-fast-does-light-travel-inside-an-optical-fiber/1313 "2026-03-30T13:24:57Z")
Is it the same as the speed of light in a vacuum? How many milliseconds does it take for a signal to travel from Shanghai to New York? --- ## [Fiber “Cold Splicing” Technology](https://forum.ofscn.net/t/fiber-cold-splicing-technology/456)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:59am UTC](https://forum.ofscn.net/t/fiber-cold-splicing-technology/456 "2026-01-25T02:59:33Z")
How is emergency repair achieved using mechanical connectors when a fusion splicer is unavailable? --- ## [Fiber End-Face Angle](https://forum.ofscn.net/t/fiber-end-face-angle/454)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:59am UTC](https://forum.ofscn.net/t/fiber-end-face-angle/454 "2026-01-25T02:59:15Z")
How much does a cleave angle greater than 1 degree affect splice loss? --- ## [Dispersion-Shifted Fiber (DSF)](https://forum.ofscn.net/t/dispersion-shifted-fiber-dsf/450)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:55am UTC](https://forum.ofscn.net/t/dispersion-shifted-fiber-dsf/450 "2026-01-25T02:55:50Z")
Why is the zero-dispersion point of a fiber intentionally altered? --- ## [Macro-bending vs. Micro-bending](https://forum.ofscn.net/t/macro-bending-vs-micro-bending/449)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:55am UTC](https://forum.ofscn.net/t/macro-bending-vs-micro-bending/449 "2026-01-25T02:55:06Z")
How do they differ in spectral behavior and loss mechanisms? --- ## [Structural Imperfection Loss](https://forum.ofscn.net/t/structural-imperfection-loss/448)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:54am UTC](https://forum.ofscn.net/t/structural-imperfection-loss/448 "2026-01-25T02:54:44Z")
How do core diameter fluctuations or bubbles cause optical signal scattering? --- ## [Absorption Loss in Optical Fiber](https://forum.ofscn.net/t/absorption-loss-in-optical-fiber/447)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:54am UTC](https://forum.ofscn.net/t/absorption-loss-in-optical-fiber/447 "2026-01-25T02:54:27Z")
At which wavelength is the impact of water peaks (OH- ions) on fiber attenuation most concentrated? --- ## [Identification Labeling for Patch Cords](https://forum.ofscn.net/t/identification-labeling-for-patch-cords/445)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:53am UTC](https://forum.ofscn.net/t/identification-labeling-for-patch-cords/445 "2026-01-25T02:53:56Z")
How is rapid maintenance achieved among hundreds of patch cords using a labeling system? --- ## [Vibration-Resistant Fiber Connectors](https://forum.ofscn.net/t/vibration-resistant-fiber-connectors/444)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:53am UTC](https://forum.ofscn.net/t/vibration-resistant-fiber-connectors/444 "2026-01-25T02:53:31Z")
Why are threaded FC connectors more vibration-resistant than push-pull SC connectors? --- ## [UV-Resistant Jackets for Patch Cords](https://forum.ofscn.net/t/uv-resistant-jackets-for-patch-cords/441)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:51am UTC](https://forum.ofscn.net/t/uv-resistant-jackets-for-patch-cords/441 "2026-01-25T02:51:41Z")
Why must outdoor fiber cables use black PE jackets? --- ## [Flame Retardancy Ratings for Patch Cords](https://forum.ofscn.net/t/flame-retardancy-ratings-for-patch-cords/439)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:50am UTC](https://forum.ofscn.net/t/flame-retardancy-ratings-for-patch-cords/439 "2026-01-25T02:50:49Z")
What do the ratings OF, OFNR, and OFNP represent? --- ## [Fiber Cladding Diameter](https://forum.ofscn.net/t/fiber-cladding-diameter/433)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:47am UTC](https://forum.ofscn.net/t/fiber-cladding-diameter/433 "2026-01-25T02:47:25Z")
Why is 125μm the globally accepted standard for cladding diameter? --- ## [Fiber Drawing Tension](https://forum.ofscn.net/t/fiber-drawing-tension/432)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:47am UTC](https://forum.ofscn.net/t/fiber-drawing-tension/432 "2026-01-25T02:47:05Z")
How does the magnitude of drawing tension affect the residual stress and geometry of the fiber? --- ## [What is a Fiber Preform?](https://forum.ofscn.net/t/what-is-a-fiber-preform/431)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:46am UTC](https://forum.ofscn.net/t/what-is-a-fiber-preform/431 "2026-01-25T02:46:47Z")
How is it transformed into kilometers of thin optical fiber via a drawing tower? --- ## [Fiber Doping Techniques](https://forum.ofscn.net/t/fiber-doping-techniques/430)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:46am UTC](https://forum.ofscn.net/t/fiber-doping-techniques/430 "2026-01-25T02:46:30Z")
Beyond Germanium, how do Fluorine, Phosphorus, and Aluminum doping change the physical properties of fiber? --- ## [Fiber Refractive Index Profile](https://forum.ofscn.net/t/fiber-refractive-index-profile/429)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:46am UTC](https://forum.ofscn.net/t/fiber-refractive-index-profile/429 "2026-01-25T02:46:14Z")
What is the difference between Step-Index and Graded-Index fibers? --- ## [Fiber Dispersion](https://forum.ofscn.net/t/fiber-dispersion/426)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:44am UTC](https://forum.ofscn.net/t/fiber-dispersion/426 "2026-01-25T02:44:58Z")
Does dispersion limit the bandwidth or precision in long-distance sensing systems? --- ## [Micro-bending Loss in Optical Fiber](https://forum.ofscn.net/t/micro-bending-loss-in-optical-fiber/425)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:44am UTC](https://forum.ofscn.net/t/micro-bending-loss-in-optical-fiber/425 "2026-01-25T02:44:47Z")
How do coating non-uniformities or lateral pressure cause microscopic wavy bends in the fiber? --- ## [Young’s Modulus of Optical Fiber](https://forum.ofscn.net/t/young-s-modulus-of-optical-fiber/421)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:43am UTC](https://forum.ofscn.net/t/young-s-modulus-of-optical-fiber/421 "2026-01-25T02:43:48Z")
What is the elastic limit of silica glass? At what strain level will the fiber immediately fracture? --- ## [What is a Wavelength Division Multiplexer (WDM)?](https://forum.ofscn.net/t/what-is-a-wavelength-division-multiplexer-wdm/419)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:43am UTC](https://forum.ofscn.net/t/what-is-a-wavelength-division-multiplexer-wdm/419 "2026-01-25T02:43:19Z")
How can 1310nm communication signals and 1550nm sensing signals be transmitted over a single fiber? --- ## [What is a Fiber Optic Coupler?](https://forum.ofscn.net/t/what-is-a-fiber-optic-coupler/418)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:42am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-coupler/418 "2026-01-25T02:42:50Z")
What role do 1x2 or 2x2 couplers play in building fiber optic sensing networks? --- ## [What is a Fiber Optic Circulator?](https://forum.ofscn.net/t/what-is-a-fiber-optic-circulator/417)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:42am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-circulator/417 "2026-01-25T02:42:33Z")
How does it enable unidirectional light transmission and the extraction of reflected signals? --- ## [What is a Fiber Optic Attenuator?](https://forum.ofscn.net/t/what-is-a-fiber-optic-attenuator/416)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:42am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-attenuator/416 "2026-01-25T02:42:09Z")
How is optical power adjusted when a signal is too strong and saturates the interrogator? --- ## [What are Heat-Shrink Protection Sleeves?](https://forum.ofscn.net/t/what-are-heat-shrink-protection-sleeves/415)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:41am UTC](https://forum.ofscn.net/t/what-are-heat-shrink-protection-sleeves/415 "2026-01-25T02:41:37Z")
How do heat-shrink sleeves restore mechanical strength and moisture resistance at the splice point? --- ## [What are High-Temperature Fiber Adapters (Flanges)?](https://forum.ofscn.net/t/what-are-high-temperature-fiber-adapters-flanges/413)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:40am UTC](https://forum.ofscn.net/t/what-are-high-temperature-fiber-adapters-flanges/413 "2026-01-25T02:40:17Z")
How do these adapters ensure long-term mechanical alignment precision inside high-temperature chambers? --- ## [What are Fiber End-Face Cleaners?](https://forum.ofscn.net/t/what-are-fiber-end-face-cleaners/412)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:39am UTC](https://forum.ofscn.net/t/what-are-fiber-end-face-cleaners/412 "2026-01-25T02:39:46Z")
Why are 90% of fiber system failures caused by end-face contamination? --- ## [Interferometer Inspection of Fiber End-Faces](https://forum.ofscn.net/t/interferometer-inspection-of-fiber-end-faces/411)
**Author:** [@frostweaver](https://forum.ofscn.net/u/frostweaver)\ **Replies:** 1\ **Last updated:** [January 25, 2026, 2:39am UTC](https://forum.ofscn.net/t/interferometer-inspection-of-fiber-end-faces/411 "2026-01-25T02:39:21Z")
How does it measure the apex offset, radius of curvature, and fiber height of a connector? [Next page](https://forum.ofscn.net/tag/wiki-component/33.md?match_all_tags=true&page=1&tags%5B%5D=wiki-component)