# OFSCN Technical Knowledge Base **URL:** https://forum.ofscn.net/c/global-tech-center/ofscn-knowledge-base/17.md [Latest](https://forum.ofscn.net/latest.md) · [Categories](https://forum.ofscn.net/categories.md) · [Tags](https://forum.ofscn.net/tags.md) --- ## [About the OFSCN Technical Knowledge Base category](https://forum.ofscn.net/t/about-the-ofscn-technical-knowledge-base-category/117)
**Author:** [@chenshaoyang](https://forum.ofscn.net/u/chenshaoyang)\ **Replies:** 0\ **Last updated:** [December 19, 2025, 4:44pm UTC](https://forum.ofscn.net/t/about-the-ofscn-technical-knowledge-base-category/117 "2025-12-19T16:44:44Z")
This category provides general technical support, covering various fields including: Bare Fiber Bragg Gratings (FBGs), FBG Demodulators (Interrogators), FBG Temperature/Strain Sensors, Customized FBG Sensors, Specialty … --- ## [What is a "fiber laser"?](https://forum.ofscn.net/t/what-is-a-fiber-laser/3185)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:34am UTC](https://forum.ofscn.net/t/what-is-a-fiber-laser/3185 "2026-10-28T06:34:29Z")
Why can optical fibers emit powerful lasers on their own? --- ## [Can optical fibers measure the geomagnetic field?](https://forum.ofscn.net/t/can-optical-fibers-measure-the-geomagnetic-field/3183)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:34am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-the-geomagnetic-field/3183 "2026-10-28T06:34:03Z")
How does it sense tiny changes in Earth's magnetic field? --- ## [What is a "fiber optic sensor network"?](https://forum.ofscn.net/t/what-is-a-fiber-optic-sensor-network/3181)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:33am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-sensor-network/3181 "2026-10-28T06:33:49Z")
Why can one fiber optic cable connect hundreds of sensors in series? Won’t they interfere with each other? --- ## [光纤能测冰厚吗？ | Can optical fibers measure ice thickness?](https://forum.ofscn.net/t/can-optical-fibers-measure-ice-thickness/3180)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:33am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-ice-thickness/3180 "2026-10-28T06:33:09Z")
在电线上挂着，光纤是怎么知道上面结了多厚的冰？ --- ## [What is "fiber optic self-healing"?](https://forum.ofscn.net/t/what-is-fiber-optic-self-healing/3178)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:32am UTC](https://forum.ofscn.net/t/what-is-fiber-optic-self-healing/3178 "2026-10-28T06:32:25Z")
I've heard that some damaged optical fibers can be restored by heating them. Is this true? --- ## [Can optical fibers detect acid rain?](https://forum.ofscn.net/t/can-optical-fibers-detect-acid-rain/3177)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:31am UTC](https://forum.ofscn.net/t/can-optical-fibers-detect-acid-rain/3177 "2026-10-28T06:31:59Z")
In environmental monitoring, how does fiber optics sense the pH of rainwater? --- ## [What is fiber optical nonlinearity?](https://forum.ofscn.net/t/what-is-fiber-optical-nonlinearity/3176)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:31am UTC](https://forum.ofscn.net/t/what-is-fiber-optical-nonlinearity/3176 "2026-10-28T06:31:37Z")
Why does fiber optic cable behave erratically and produce strange light when the light is too strong? --- ## [Can optical fibers measure vacuum level / pressure?](https://forum.ofscn.net/t/can-optical-fibers-measure-vacuum-level-pressure/3175)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:30am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-vacuum-level-pressure/3175 "2026-10-28T06:30:57Z")
How does fiber optics sense the pressure inside a vacuum chamber in a semiconductor factory? --- ## [Can optical fibers measure wind speed?](https://forum.ofscn.net/t/can-optical-fibers-measure-wind-speed/3173)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:30am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-wind-speed/3173 "2026-10-28T06:30:24Z")
On wind turbines, how do optical fibers sense the force of the wind blowing? --- ## [What is a fiber optic salt spray test?](https://forum.ofscn.net/t/what-is-a-fiber-optic-salt-spray-test/3174)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:30am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-salt-spray-test/3174 "2026-10-28T06:30:23Z")
On the seaside or offshore platforms, will optical fibers be damaged by sea winds? --- ## [What is a "fiber optic level gauge"?](https://forum.ofscn.net/t/what-is-a-fiber-optic-level-gauge/3172)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:26am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-level-gauge/3172 "2026-10-28T06:26:55Z")
How much oil is left in the tank, and how does fiber optics "see" it? --- ## [Can optical fibers measure pressure?](https://forum.ofscn.net/t/can-optical-fibers-measure-pressure/3170)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:26am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-pressure/3170 "2026-10-28T06:26:15Z")
If you bury it in the soil, can it measure how many tons of vehicles are pressing down on it? --- ## [Can optical fibers measure vibration?](https://forum.ofscn.net/t/can-optical-fibers-measure-vibration/3168)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:21am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-vibration/3168 "2026-10-28T06:21:50Z")
When a machine vibrates severely, can optical fiber measure how many times it shakes per second? --- ## [What is a "fiber Bragg grating (FBG)"?](https://forum.ofscn.net/t/what-is-a-fiber-bragg-grating-fbg/3167)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:21am UTC](https://forum.ofscn.net/t/what-is-a-fiber-bragg-grating-fbg/3167 "2026-10-28T06:21:49Z")
Is it the "ruler" in the optical fiber? How does it measure temperature through color changes? --- ## [Can fiber optics prevent wiretapping? | Are optical fibers tap-proof / anti-eavesdropping?](https://forum.ofscn.net/t/are-optical-fibers-tap-proof-anti-eavesdropping/3166)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:21am UTC](https://forum.ofscn.net/t/are-optical-fibers-tap-proof-anti-eavesdropping/3166 "2026-10-28T06:21:14Z")
Why is fiber optic communication considered more secure than cable communication in classified facilities? --- ## [What is a "chalcogenide optical fiber"?](https://forum.ofscn.net/t/what-is-a-chalcogenide-optical-fiber/3165)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:20am UTC](https://forum.ofscn.net/t/what-is-a-chalcogenide-optical-fiber/3165 "2026-10-28T06:20:20Z")
What is the use of this optical fiber, which sounds like a chemical reagent, in a night vision device? --- ## [Can optical fibers transmit infrared thermal imaging?](https://forum.ofscn.net/t/can-optical-fibers-transmit-infrared-thermal-imaging/3164)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:20am UTC](https://forum.ofscn.net/t/can-optical-fibers-transmit-infrared-thermal-imaging/3164 "2026-10-28T06:20:09Z")
Why can't ordinary optical fibers transmit thermal imaging light? What special materials are needed? --- ## [What is a "fiber optic shape sensor"?](https://forum.ofscn.net/t/what-is-a-fiber-optic-shape-sensor/3159)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:19am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-shape-sensor/3159 "2026-10-28T06:19:44Z")
Why can optical fibers display their bending shape in real-time on a computer, much like a snake? --- ## [What is a "sapphire optical fiber"?](https://forum.ofscn.net/t/what-is-a-sapphire-optical-fiber/3163)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:19am UTC](https://forum.ofscn.net/t/what-is-a-sapphire-optical-fiber/3163 "2026-10-28T06:19:44Z")
Can this fiber optic made of gemstones withstand fire above 1000°C? --- ## [Can optical fibers measure rotational speed / RPM?](https://forum.ofscn.net/t/can-optical-fibers-measure-rotational-speed-rpm/3161)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 28, 2026, 6:19am UTC](https://forum.ofscn.net/t/can-optical-fibers-measure-rotational-speed-rpm/3161 "2026-10-28T06:19:25Z")
How does a fiber optic count revolutions on a high-speed rotating motor shaft? --- ## [What is a "field closure / optical fiber splice closure"?](https://forum.ofscn.net/t/what-is-a-field-closure-optical-fiber-splice-closure/3158)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:33am UTC](https://forum.ofscn.net/t/what-is-a-field-closure-optical-fiber-splice-closure/3158 "2026-10-26T11:33:55Z")
How does the black box on the utility pole manage to not let water in for ten years? --- ## [How do you install an "optical fiber splitter"?](https://forum.ofscn.net/t/how-do-you-install-an-optical-fiber-splitter/3156)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:33am UTC](https://forum.ofscn.net/t/how-do-you-install-an-optical-fiber-splitter/3156 "2026-10-26T11:33:54Z")
How should a splitter box be secured when converting 1 fiber optic cable to 8? --- ## [What is a "fiber optic splice tray / enclosure"?](https://forum.ofscn.net/t/what-is-a-fiber-optic-splice-tray-enclosure/3155)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:33am UTC](https://forum.ofscn.net/t/what-is-a-fiber-optic-splice-tray-enclosure/3155 "2026-10-26T11:33:05Z")
How are the spliced fiber cores neatly wound onto the spool? --- ## [What is the impact of the "cleave angle"?](https://forum.ofscn.net/t/what-is-the-impact-of-the-cleave-angle/3154)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:32am UTC](https://forum.ofscn.net/t/what-is-the-impact-of-the-cleave-angle/3154 "2026-10-26T11:32:54Z")
Why can't it be properly docked if it's angled incorrectly (more than 1 degree)? --- ## [What is the maintenance of fiber optic strippers?](https://forum.ofscn.net/t/what-is-the-maintenance-of-fiber-optic-strippers/3153)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:32am UTC](https://forum.ofscn.net/t/what-is-the-maintenance-of-fiber-optic-strippers/3153 "2026-10-26T11:32:17Z")
Why does a slight notch in the jaw lead to frequent fiber optic breaks? --- ## [What is "optical fiber coating stripping"?](https://forum.ofscn.net/t/what-is-optical-fiber-coating-stripping/3151)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:31am UTC](https://forum.ofscn.net/t/what-is-optical-fiber-coating-stripping/3151 "2026-10-26T11:31:48Z")
During maintenance, how can the outer sheath be precisely stripped without scratching the inner glass core? --- ## [What is a "cost-performance ratio" calculation?](https://forum.ofscn.net/t/what-is-a-cost-performance-ratio-calculation/3150)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:31am UTC](https://forum.ofscn.net/t/what-is-a-cost-performance-ratio-calculation/3150 "2026-10-26T11:31:23Z")
Why can buying an expensive jumper save the company hundreds of thousands in repair costs? --- ## [What are "application case study" references?](https://forum.ofscn.net/t/what-are-application-case-study-references/3149)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:31am UTC](https://forum.ofscn.net/t/what-are-application-case-study-references/3149 "2026-10-26T11:31:13Z")
How do others install these jumpers in oil drilling or high-speed rail? --- ## [What is a "technical support" service?](https://forum.ofscn.net/t/what-is-a-technical-support-service/3147)
**Author:** [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\ **Replies:** 1\ **Last updated:** [October 26, 2026, 11:30am UTC](https://forum.ofscn.net/t/what-is-a-technical-support-service/3147 "2026-10-26T11:30:04Z")
Can OFSCN® experts diagnose strange signal fluctuations remotely? [Next page](https://forum.ofscn.net/c/global-tech-center/ofscn-knowledge-base/17.md?page=1)