Advanced Fiber Resources

What Advanced Fiber Resources does

Advanced Fiber Resources (珠海光库科技股份有限公司, Shenzhen Stock Exchange: 300620) is a Chinese precision optical components manufacturer headquartered in Zhuhai with over 40 years of lithium niobate (LiNbO3) modulator R&D and production heritage. The company designs and manufactures a broad portfolio of optical components — including thin film lithium niobate (TFLN) and traditional LiNbO3 modulators, optical circulators, isolators, couplers, WDM filters, fiber arrays, optical circuit switches (OCS), EDFA modules, and Raman amplifiers — serving data center operators, telecommunications carriers, industrial laser OEMs, autonomous driving systems, and biomedical equipment manufacturers.

The company's core technology platform centers on TFLN modulator technology, with flagship products including 130 GBaud coherent modulators integrated with RF drivers (power consumption under 3.5W, extinction ratio ≥23dB) targeting 800 Gb/s and above coherent optical transmission systems, plus TFLN modulators with ultra-high bandwidth (>110 GHz), low drive voltage (1.8 V·cm), and low optical loss (<0.2 dB/cm) for pluggable modules, LPO, and CPO applications. Through wholly-owned subsidiaries Jiahua Weijie (fiber arrays), Wuhan Guangku (OCS via Calient partnership), and Bai'an Optoelectronics (EDFA/Raman amplifiers), the group offers vertically integrated solutions from chip-level components to optical subsystems, including the Pluggable OLS product family (QSFP OCM, EDFA, OTDR).

The business model is B2B enterprise sales with quote-based pricing for custom-designed optical components tailored to customer specifications across wavelength, power, and packaging. The company markets through major industry exhibitions (OFC, CIOE, APE, ECOC) and direct enterprise sales outreach. With 1,001-5,000 employees, manufacturing operations in Zhuhai and Wuhan, optical circulator capacity expanding from 100,000 units/month (2026) to 200,000 units/month (2027), and active acquisition activity (Jabil's Wuhan plant for USD 17M in 2025; a 99.97% stake in an undisclosed optical technology company in 2026), the company is positioned as a key optical component supplier for the AI infrastructure buildout cycle.

Name

Advanced Fiber Resources

Legal name

珠海光库科技股份有限公司 (Zhuhai Guangku Technology Co., Ltd.)

Website

https://afrlaser.com

Company type

Public

Founded year

1985

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

Advanced Fiber Resources (Shenzhen: 300620) is a Chinese precision optical components manufacturer specializing in thin film lithium niobate (TFLN) modulators, optical circulators, circuit switches, and fiber arrays serving hyperscale data centers, telecommunications carriers, and industrial laser OEMs building AI and 5G infrastructure.

Ownership category

akta.pro rank

Product category

Optical Fiber Components and Subassemblies

NAICS

Other Communications Equipment Manufacturing (33429), Electronic Connector Manufacturing (334417)

SIC

Optical Instruments & Lenses (3827), Electronic Connectors (3678)

akta.pro primary industry

Optoelectronics & Photonics (LED/Laser/Optical ICs) (HDAHAAAH)

akta.pro secondary industries

Fiber-Optic Interconnects (Connectors/Cables/Transceivers Interfaces) (HDAHAOAE), Optoelectronic Receivers & Transceivers (Photodetectors/Optical Modules) (HDAHALAM)

Keywords

• Thin film lithium niobate modulators
• Optical fiber components
• Data center optical interconnect
• Telecommunications photonics
• Fiber laser components

Headquarters

HQ city

Zhuhai

HQ country

China

HQ region

Asia

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Technology or R&D, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. Optical Component Manufacturing: Design, manufacture and sale of precision optical components including modulators, circulators, isolators, couplers, WDM filters, fiber arrays for telecommunications, data centers, and industrial laser applications
2. Manufacturing Facility Acquisition: Expansion of manufacturing capabilities through strategic acquisitions of optical communications factories (e.g., Jabil's Wuhan facility for USD17 million) to expand customer base and improve product mix

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

Advanced Fiber Resources designs and manufactures specialty optical fiber components and subassemblies, including thin film lithium niobate (TFLN) modulators, optical circulators, isolators, WDM filters, couplers, and fiber arrays. Its products are integrated into data-center optical interconnects, telecommunications networks, industrial fiber lasers, autonomous-driving/LiDAR sensors, and biomedical instrumentation. The company couples 40 years of lithium niobate modulator R&D with vertically integrated manufacturing across Zhuhai and Wuhan facilities.

Differentiator

Problem solved

Functional benefit

Brands

• Vlink: Data center optical application products including high-speed circulators and optical components
• Pluggable OLS

Products and services

• Thin Film Lithium Niobate (TFLN) Modulators High-bandwidth, low-driving-voltage thin-film lithium niobate electro-optic modulators for next-generation 100G–1.6T data-center and telecom optical transceivers.
• Lithium Niobate (LiNbO3) Modulators Electro-optic modulators based on bulk lithium niobate, serving high-speed telecommunications and optical test & measurement applications.
• Optical Circulators Fiber-optic circulators that direct light between multiple ports for telecom networks, fiber lasers, and test & measurement systems.
• Optical Isolators Fiber-optic isolators that protect laser sources and amplifiers from back-reflections in telecom, industrial laser, and biomedical systems.
• WDM Filters / Wavelength Division Multiplexers Thin-film-filter-based WDM components that combine or separate multiple optical wavelengths for telecom and data-center networks.
• Fiber Couplers / Splitters Fused-fiber and planar couplers/splitters for power splitting and combining in telecom, sensing, and laser systems.
• Fiber Arrays Multi-channel fiber arrays used in optical transponders, LiDAR modules, and photonic integrated circuit (PIC) packaging.
• Specialty Optical Subassemblies and Modules Custom-engineered optical subassemblies and modules integrating passive and active components for industrial laser, sensing, telecom, and biomedical OEMs.

Quantifiable outcome

• TFLN modulator market projected to grow from US$356 million (2024) to US$3,829 million by 2031 at 41% CAGR
• +1 more outcomes

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Three partnerships are on record, tiered strategic and core.

• Acquisition Target (Optical Technology Company)strategicStrategic or Co-development Partner · 26 June 2026Company subsidiary agreed to acquire 99.97% controlling stake in an undisclosed optical technology company to expand presence in the optical technology sector.
• Jabil Circuit (Jabil's Wuhan Optical Plant)strategicStrategic or Co-development Partner · 5 June 2025Agreement to acquire Jabil's optical communications factory in Wuhan for USD17 million to expand customer base and improve product mix. The factory produces optical components with strong manufacturing capabilities and reported USD9 million revenue in Q1.
• Calient TechnologiescoreTechnology or IntegrationManufacturing partnership for S-series Optical Circuit Switches (OCS). 武汉光库 manufactures Calient's OCS products based on 3D MEMS optical technology, offering 320×320 channels with millisecond-level low latency for AI super-node applications.

Scale indicators10 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Broadcom: Broadcom is a dominant supplier of high-speed optical interconnects and DSPs for data centers (including optical pluggables). Comparable as a large incumbent supplying the hyperscaler optical interconnect ecosystem in which AFR's modulators, circulators, and OCS compete.
• Infinera: Infinera (now part of Nokia) develops optical networking solutions, including coherent optical modules and photonic integrated circuits for long-haul and metro networks. Comparable to AFR on telecom coherent optical components and PIC-based integration.
• MACOM Technology Solutions: MACOM designs and manufactures high-performance analog RF, microwave, and photonic semiconductors and components, including indium phosphide and other photonic devices. Comparable on photonic component technology serving telecom and data center markets, though broader portfolio than AFR's optics focus.
• Ciena: Ciena is a major systems vendor in optical networking, with significant in-house coherent optical component capability (WaveLogic) serving carriers and hyperscalers. Comparable as an incumbent optics systems supplier whose internal component work overlaps AFR's telecom/coherent modulator focus.

Direct peers

• Eoptolink Technology: Eoptolink produces high-speed optical transceivers and components for data centers and telecom networks. Comparable as a domestic Chinese peer competing in 800G/1.6T modules that consume optical components overlapping AFR's product lines.
• Innolight Technology: Innolight is a leading Chinese manufacturer of high-speed optical transceivers (400G/800G/1.6T) for data centers and AI clusters. Directly comparable as a Chinese-listed optical component/transceiver peer addressing the same hyperscaler customers as AFR's modulators, circulators, and fiber arrays.
• Hisense Broadband: Hisense Broadband manufactures optical modules and components for telecom and data center applications, including high-speed transceivers. Overlaps AFR's telecom/datacom optical component offerings and is a comparable Chinese-listed industry peer.
• Lumentum Holdings: Lumentum designs and manufactures optical components and modules, including lithium niobate modulators, pump lasers, and optical circuit switches. Directly comparable to AFR in telecom-grade modulators (LiNbO3) and 800G/1.6T data center optical components.
• Coherent: Coherent (formerly II-VI) is a major merchant supplier of optical components, including LiNbO3 modulators and active photonic devices, serving telecom and data center customers. AFR competes with Coherent across laser/optical components and emerging TFLN platforms.

Regional players

• Fujitsu Optical Components: Fujitsu Optical Components manufactures lithium niobate modulators and other optical components primarily for the Japanese and broader Asia-Pacific telecom market. Highly comparable to AFR's LiNbO3 modulator heritage and product range, though serving a different geographic customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A1 record

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Advanced Fiber Resources