The global fiber optic market has entered a "super cycle," driven not just by AI but by the emergence of G.657.A2 bare fiber as a mission-critical consumable .

The global fiber optic industry is at an inflection point. For decades, solid-core fiber has been the backbone of communications. But as AI workloads and latency-sensitive applications multiply, traditional glass fiber is approaching its physical limits. Enter hollow core fiber (HCF) – a technology that replaces the solid glass core with air, delivering transmission speeds approximately 31% faster than conventional single-mode fiber.

As a world-leading supplier of communication fiber products, GL FIBER is at the forefront of hollow core fiber research and development. This article explains what hollow core fiber is, its key performance advantages, applications, market outlook, and what to look for when purchasing HCF products.

If you are sourcing FPV drone bare fiber for UAV applications, you have likely noticed one thing: G657A2 optical fiber prices have gone through the roof. Over the past year, G.657.A2 prices surged from 32 RMB/km to approximately 240 RMB/km—an increase of up to 650%.

If you’re sourcing bare fiber, ultra thin fiber, or FPV drone bare fiber for modern drone applications, you’ve likely encountered a market unlike anything seen in years. Prices are soaring, lead times are stretching, and the once-stable fiber optic supply chain has been turned upside down.

The global market for FPV drone fiber has entered unprecedented territory. Fiber-optic guided drones—immune to electronic jamming—have become essential in modern defense and industrial applications. Each mission consumes 20–40 kilometers of specialized optic bare fiber, and because the fiber is not recovered after deployment, this represents pure consumable demand.

Optical fiber prices have skyrocketed. G.657.A2 fiber has surged from approximately 32 CNY per core-kilometer to 240 CNY over the past year—an increase of up to 650%. G.652.D single-mode fiber prices climbed from under 20 CNY to 83.4 CNY per core-kilometer in March 2026, a cumulative increase of over 400%. Major Chinese manufacturers now have orders booked through Q1 2027.

If you are sourcing optical bare fiber for FPV drone applications, you have likely noticed one thing: G.657.A2 fiber prices have gone through the roof. Over the past year, G.657.A2 prices surged from 32 RMB/km to approximately 240 RMB/km – an increase of up to 650% .

GL FIBER offers three grades of bend-insensitive optical fibers to meet diverse installation needs. G.657.A1 is the standard bend-insensitive fiber with a 10 mm minimum bend radius, fully compatible with G.652.D for general FTTH and indoor cabling. G.657.A2 delivers enhanced performance with a 7.5 mm bend radius, ideal for FTTH drop cables and high-density patching. G.657.B3 is the ultra bend-insensitive option, supporting an extreme 5 mm bend radius for space‑constrained applications such as micro‑ducts and drone tethers. All three maintain excellent signal integrity under tight bends while offering different levels of compatibility and flexibility. With 22 years of optical cable manufacturing expertise, GL FIBER provides customized solutions to match your project requirements.

The market for G657A2 FPV drone optic fiber has entered extraordinary territory. Fiber-optic guided drones—immune to electronic jamming—have become essential in modern defense applications, with each mission consuming 20–40 kilometers of specialized optic bare fiber . This has transformed FPV drone bare fiber from infrastructure into pure consumable demand, creating unprecedented market tightness.