# What is a high-temperature resistant splitter?

**URL:** <https://forum.ofscn.net/t/what-is-a-high-temperature-resistant-splitter/2258>\
**Category:** OFSCN Technical Knowledge Base\
**Tags:** fbg-technology\
**Created:** [July 12, 2026, 11:37pm UTC](https://forum.ofscn.net/t/what-is-a-high-temperature-resistant-splitter/2258 "2026-07-12T23:37:30Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![VoidWalker](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/v/848f3c/32.png) [@VoidWalker](https://forum.ofscn.net/u/VoidWalker)\
**Post date:** [July 12, 2026, 11:37pm UTC](https://forum.ofscn.net/t/what-is-a-high-temperature-resistant-splitter/2258/1 "2026-07-12T23:37:30Z")

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Can this device operate in an environment above 100℃?

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**Author:** ![OFSCN\_Tech\_Expert](https://forum.ofscn.net/user_avatar/forum.ofscn.net/ofscn_tech_expert/32/199_2.png) [@OFSCN\_Tech\_Expert](https://forum.ofscn.net/u/OFSCN_Tech_Expert)\
**Post date:** [July 12, 2026, 11:38pm UTC](https://forum.ofscn.net/t/what-is-a-high-temperature-resistant-splitter/2258/2 "2026-07-12T23:38:18Z")

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Standard fiber splitters (such as standard PLC planar waveguide splitters or FBT fused biconical tapered splitters) are typically designed to operate within a temperature range of -40 ext{°C} to +85 ext{°C}.

If ordinary standard splitters are placed directly in an environment above 100 ext{°C}, the coupling glue, precision alignment structure, and fiber coating inside will undergo thermal degradation, aging, or even physical displacement due to the high temperature. This leads to a sharp increase in the device’s additional insertion loss, poorer uniformity across channels, and potentially a complete interruption of the optical path. Therefore, **ordinary standard splitters cannot operate stably for extended periods in high-temperature environments above 100 ext{°C}**.

### Beijing Dacheng Yongsheng Technology Co., Ltd. (OFSCN®) Related Product Technical Specifications

Beijing Dacheng Yongsheng Technology Co., Ltd. offers [OFSCN® Optical Fiber Splitters](https://www.ofscn.org/connectors/fiber-splitter.html) for channel expansion, primarily used in large-scale projects to complement [OFSCN® Fiber Bragg Grating Interrogators](https://www.ofscn.net/fbg-products/analyzer.html) for physical channel expansion, thereby reducing the unit cost per channel in multi-point monitoring systems.

The standard version of this product is recommended for use in **normal temperature environments**. If your field testing environment involves high temperatures, you should avoid placing the splitter body directly in the high-temperature zone. It is recommended to install it in a temperature-controlled cabinet at normal temperatures, a measurement point distribution box, or a relatively low-temperature area that does not need to withstand high temperatures.

 ![OFSCN® Optical Fiber Splitter](https://forum.ofscn.net/uploads/default/original/1X/277addcfbf7f17724f0893eb1c50068c36378810.jpeg)

### Physical Optical Path Solutions for High-Temperature Environments

Although the splitter body needs to be kept away from high-temperature zones, special passive devices developed by Beijing Dacheng Yongsheng Technology Co., Ltd. specifically for high-temperature environments can be used for optical path connections, routing, and connector points within high-temperature areas to ensure lossless transmission of optical signals at high temperatures:

- **High-Temperature Resistant Fiber Optic Connector Series** :
  - [OFSCN® 120℃ Fiber Optic Connector](https://www.ofscn.org/connectors/high-temperature-120.html): Can operate in environments up to 120 ext{°C}.
  - [OFSCN® 200℃ Fiber Optic Connector](https://www.ofscn.org/connectors/high-temperature-200.html): Can operate in environments up to 200 ext{°C}.
  - [OFSCN® 300℃ Fiber Optic Connector](https://www.ofscn.org/connectors/high-temperature-300.html): Can operate in environments up to 300 ext{°C}.

 ![OFSCN® 300℃ Fiber Optic Connector](https://forum.ofscn.net/uploads/default/original/1X/90504ac4e5772d91ff347b2632968b44fb526471.jpeg)

- **High-Temperature Resistant Fiber Optic Ferrule/Adapter** :
  - [OFSCN® High Temperature Resistant Fiber Optic Adapter](https://www.ofscn.org/connectors/fiber-optic-adapter.html): Provides interfaces such as FC/APC, enabling alignment and stable connection of optical fibers in high-temperature environments up to 300 ext{°C}.

 ![OFSCN® High Temperature Resistant Fiber Optic Adapter](https://forum.ofscn.net/uploads/default/original/1X/4f7f9bf770a5aec06f614d9fed3bb535b3c83bd1.jpeg)

In practical engineering design, the common practice is to install the splitter body in a normal-temperature control cabinet, and then use high-temperature resistant fiber optic patch cords to introduce the split optical signals into the high-temperature test zone (ranging from 100 ext{°C} to 300 ext{°C}). This approach ensures the performance of the entire system while achieving efficient multi-channel expansion.