Ultra Fine High-Performance Polyimide Coated Optical Fiber Cables

Product Description

High - Performance Polyimide Coated Optical Fibers Ultra Fine Special Optical Fiber 

Product Description

Raytek's ultra - fine diameter polyimide (PI) coated optical fiber is a premium specialty optical fiber. It adopts a high - purity quartz core preform and advanced polyimide coating materials. Through sophisticated manufacturing processes, we can produce various polyimide coated optical fibers with coating diameters less than 100μm.

The core of the fiber, made from high - purity silica, is responsible for guiding light with minimal attenuation. The cladding, also silica - based but with a precisely controlled lower refractive index than the core, ensures efficient total internal reflection for light propagation. The polyimide coating, applied uniformly over the cladding, serves as a robust protective layer.

This fiber boasts precise size control, with tight tolerances on core diameter, cladding diameter, and coating diameter. Its performance is on par with or even exceeds that of imported counterparts, making it a reliable alternative for fiber processing applications in critical fields.

Our Advantages

Advantages Over Conventional Fibers

Compared to traditional optical fibers with standard coatings, Raytek's polyimide coated fiber offers several key advantages. Firstly, the polyimide coating provides superior thermal stability, allowing the fiber to operate in a much wider temperature range. Secondly, the ultra - fine diameter enables integration into compact devices and systems where space is limited. Additionally, the high purity of the core and the quality of the coating result in lower attenuation, ensuring better signal transmission over longer distances or in applications where signal integrity is paramount.

Superior Thermal Stability:
Our PI - coated optical fiber, leveraging polyimide's outstanding thermal resistance, works in a wide temperature range of - 60°C to 350°C, far exceeding the ~85°C limit of conventional acrylate - coated fibers. It keeps structural and optical integrity in high - temp settings like industrial furnaces and aerospace engine compartments, and stays flexible in cryogenic scenarios such as medical imaging or space systems.

Excellent Mechanical Performance:
It has high tensile strength to endure pulling forces, vital for stressed applications like aerospace wiring and industrial sensing. Also, its great flexibility allows tight bending without much signal loss, enabling easy installation in compact devices like minimally invasive medical tools.The polyimide coating strongly protects the fiber from scratches and abrasions, lasting long even in harsh conditions like construction sites.

Exceptional Chemical and Radiation Resistance: Resistant to solvents, acids, alkalis, it suits corrosive environments like chemical plants and marine use. It also resists radiation well, performing reliably in nuclear facilities or space missions.

Low Optical Attenuation: With a high - purity quartz core and precise manufacturing, it ensures efficient long - distance light transmission, ideal for industrial communication and long - range sensing.

Biocompatibility: The polyimide coating is safe for contact with biological tissues, making it fit for medical uses like dental surgery and minimally invasive procedures.

Product Parameters

Fiber Type (IR/UV)	50/55 - P	61/67 - P	70/77 - P	74/77 - P	75/90 - P	100/110 - P
Numerical Aperture (NA)	0.22±0.02
Attenuation @650nm (db/km)	≤5
OH-	High/Low
Core Diameter (μm)	50±2	61±2	70±2	74±2	75±2	100±2
Cladding Diameter (μm)	55±2	67±2	77±2	77±2	90±2	110±2
Coating Diameter (μm)	66±3	80±3	85±3	85±3	101±5	120±5
Core Material	Silica
Cladding Material	F - doped Silica
Proof Test Level (kpsi)	≥100
Coating Material	polyimide
Usage Temperature (ºC)	- 60 ~ 350

Customization Services

1 Special Size Customization (Core Diameter / Cladding Diameter)
We understand that different applications may require optical fibers with specific core and cladding diameters. Our advanced manufacturing capabilities allow us to customize the core diameter and cladding diameter according to your exact specifications.
Whether you need a fiber with a very small core diameter for high - density packaging or a larger core diameter for increased light - carrying capacity, we can tailor the fiber to meet your requirements. Our precise manufacturing processes ensure that the customized fibers maintain the same high level of quality and performance as our standard products.

2 Different Color Coatings
While our standard polyimide coating comes in yellow or brown, we offer customization options for coating colors. Different colors can be used for identification purposes, making it easier to distinguish between different fibers in complex systems or installations.
Whether you need a specific color to match your equipment's aesthetics or for functional identification, we can provide polyimide coated optical fibers with customized coating colors.

3 Special Performance Requirements
3.1 Ultra - Low Attenuation
If your application demands ultra - low optical attenuation for long - distance transmission or high - precision sensing, we can optimize our manufacturing processes to produce fibers with even lower attenuation. This involves using ultra - high - purity materials and implementing strict quality control measures to minimize any factors that could cause light loss.
3.2 Acid and Alkali Resistance
For applications in highly corrosive environments with exposure to strong acids or alkalis, we can modify the polyimide coating formulation to enhance its acid and alkali resistance. This ensures that the fiber remains protected and functional even in the harshest chemical environments.
3.3 Other Special Properties
In addition to the above, we can also customize fibers to meet other special performance requirements, such as enhanced radiation resistance for nuclear applications or improved flexibility for use in highly bend - sensitive devices. Our team of experienced engineers will work closely with you to understand your specific needs and develop a customized solution that meets your application's unique demands.
Raytek is committed to providing high - quality polyimide coated optical fibers and excellent customization services to meet the diverse needs of our customers. Whether you are in the medical, aerospace, industrial, or environmental sector, our fibers and services can support your critical applications. Contact us today to discuss your requirements and discover how our polyimide coated optical fibers can benefit your business.