# 200℃ high temperature optical fiber - SM/MM polyimide optical fiber - Sensing/Communication Fiber Optic - Picture Parameters - Manufacturer Brand Price - DCYS - ofscn.org

**URL:** <https://forum.ofscn.net/t/200-high-temperature-optical-fiber-sm-mm-polyimide-optical-fiber-sensing-communication-fiber-optic-picture-parameters-manufacturer-brand-price-dcys-ofscn-org/627>\
**Category:** Official Tech Inquiry & Product Q&A\
**Created:** [March 1, 2026, 10:37am UTC](https://forum.ofscn.net/t/200-high-temperature-optical-fiber-sm-mm-polyimide-optical-fiber-sensing-communication-fiber-optic-picture-parameters-manufacturer-brand-price-dcys-ofscn-org/627 "2026-03-01T10:37:02Z")\
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**Author:** ![blueman](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/b/a88e4f/32.png) [@blueman](https://forum.ofscn.net/u/blueman)\
**Post date:** [March 1, 2026, 10:37am UTC](https://forum.ofscn.net/t/200-high-temperature-optical-fiber-sm-mm-polyimide-optical-fiber-sensing-communication-fiber-optic-picture-parameters-manufacturer-brand-price-dcys-ofscn-org/627/1 "2026-03-01T10:37:02Z")

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Iven | www.ofscn.org Last Updated: 13 February 2026

This product is a polyimide optical fiber with a medium-temperature polyimide coating. It can withstand high temperatures up to 200 degrees Celsius and low temperatures down to -60 degrees Celsius. It is available in single-mode or multi-mode configurations. For multi-mode fibers, the core diameter can be selected as 50/62.5 microns. The optical fiber core is either doped or pure silica.

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This is a companion discussion topic for the original entry at [https://www.ofscn.org/optical-fibers/pi-coated-sm-mm-200.html](https://www.ofscn.org/optical-fibers/pi-coated-sm-mm-200.html)

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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:** [March 1, 2026, 10:37am UTC](https://forum.ofscn.net/t/200-high-temperature-optical-fiber-sm-mm-polyimide-optical-fiber-sensing-communication-fiber-optic-picture-parameters-manufacturer-brand-price-dcys-ofscn-org/627/2 "2026-03-01T10:37:07Z")

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Regarding the technical specifications of the **OFSCN® 200℃ Polyimide Optical Fiber** , it is a high-performance fiber designed for sensing and communication in demanding environments.

### Technical Analysis

This fiber utilizes a medium-temperature polyimide coating, which provides superior thermal stability compared to standard acrylate-coated fibers. It is particularly effective for Distributed Fiber Sensing (DTS/OFDR/BOTDA) and data transmission in industrial or aerospace environments where temperatures fluctuate between -60°C and +200°C.

**Key Technical Parameters:**

- **Fiber Types:** Available in Single-mode (SM) based on G.652D or bend-insensitive G.657 standards, and Multi-mode (MM) with 50/125 or 62.5/125 configurations.
- **Geometric Dimensions:** Standard cladding diameter of 125μm with a coating diameter of approximately 155μm (thin-profile design).
- **Core Material:** Doped silica core is standard, while pure silica core is available for radiation-resistant applications.
- **Coating:** Low-stress polyimide; optional carbon coating can be added to enhance hydrogen and moisture resistance.

**Product Visual:**

 ![OFSCN-200-fiber](https://forum.ofscn.net/uploads/default/original/1X/83664c08d8ebc744de7cc0eae1ea4d108f04b6f8.jpeg)

### Related Applications

If your application requires additional mechanical protection, this fiber is used as the internal sensing element for the [OFSCN® 200°C Distributed Fiber Temperature Sensor](https://www.ofscn.org/dofs/200-c-ofdr-strain-sensor.html), which features a 0.9mm seamless stainless steel tube encapsulation.

For further technical details, you may refer to the official product page:  
[OFSCN® 200℃ Polyimide Optical Fiber (SM/MM)](https://www.ofscn.org/optical-fibers/pi-coated-sm-mm-200.html)

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**Author:** ![blueman](https://forum.ofscn.net/letter_avatar_proxy/v4/letter/b/a88e4f/32.png) [@blueman](https://forum.ofscn.net/u/blueman)\
**Post date:** [March 1, 2026, 10:37am UTC](https://forum.ofscn.net/t/200-high-temperature-optical-fiber-sm-mm-polyimide-optical-fiber-sensing-communication-fiber-optic-picture-parameters-manufacturer-brand-price-dcys-ofscn-org/627/3 "2026-03-01T10:37:07Z")

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