

Defense Industry
We provide defense industry solutions to ensure national security with cutting-edge technology.
FOSTEC INC.
See us at IDEF 2025
"Founded in 2001, FOSTEC has established itself as a leading company in the Optical Communication Industry through 21 years of diverse experiences.
Gyeonggi-do, Gyeonggi-do, South Korea
Aerospace
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Products & Services
FS-21S
FOSTEC Inc.
An optical fusion splicer is a device that connects two optical fibers by fusing the ends at high temperatures. This process minimizes optical fiber loss, maintains signal transmission quality, and provides a durable connection. It is an essential tool in optical communication networks, and is particularly utilized in FTTx, data centers, and long-distance optical cable installations.
Features
- Low loss and high reliability.
- Fast and accurate connection.
- Small and lightweight equipment.
- Compatible with various fibers.
- User-friendly interface.
- Reduced maintenance costs.
Application Area
- Data Center
- Optical Communication Network Construction
Features
- Low loss and high reliability.
- Fast and accurate connection.
- Small and lightweight equipment.
- Compatible with various fibers.
- User-friendly interface.
- Reduced maintenance costs.
Application Area
- Data Center
- Optical Communication Network Construction
Beam Connectors
FOSTEC Inc.
FOBEX 38999
MIL-DTL-38999 An optical connector which is applied to beam expanding optical signal transmission technology into a connector designed according to military standards. It can be used in a variety of adverse conditions such as extreme temperature, vibration, shock, humidity, and dust. It has little impact from outdoor contamination and is easy to maintain, making it easy to use tactically.
FOBEX 83526
Ensures stable and reliable data transmission in extreme environments. Designed with a hermaphrodite type for easy connection and disconnection over 3,000 times, the extended beam technology minimizes loss caused by dust or contaminants from outdoors.
FOBEX-P
Fiber optic ferrules with expandable beam technology, designed to replace 1.6mm military fiber optic ferrules for tactical applications
MIL-DTL-38999 An optical connector which is applied to beam expanding optical signal transmission technology into a connector designed according to military standards. It can be used in a variety of adverse conditions such as extreme temperature, vibration, shock, humidity, and dust. It has little impact from outdoor contamination and is easy to maintain, making it easy to use tactically.
FOBEX 83526
Ensures stable and reliable data transmission in extreme environments. Designed with a hermaphrodite type for easy connection and disconnection over 3,000 times, the extended beam technology minimizes loss caused by dust or contaminants from outdoors.
FOBEX-P
Fiber optic ferrules with expandable beam technology, designed to replace 1.6mm military fiber optic ferrules for tactical applications
Fiber Optic Pin Terminal (MIL-PRF-29504/4D)
FOSTEC Inc.
POSTECH's optical fiber pin/socket terminals are designed to connect to each other through physical contact. POSTECH's unique alignment technology maximizes optical performance and provides reliability.
Contact Connectors
FOSTEC Inc.
MIL-DTL-38999 seriesⅢ
38999 connector developed for the transmission of electrical and optical signals and is widely used in aerospace, military, marine, and industrial automation systems. FOSTEC's superior cable assembly manufacturing technology ensures more stable loss values and performance.
FFOCA
A ruggedized optical connector for military and tactical communications, designed for use in extreme environments. It is mainly used to provide fast and reliable communication in situations such as military, defense industry, disaster response and field communication.
PTLC
An outdoor connector which comes pre-loaded with LC connectors, providing a quick and easy installation solution.
ODC
A high-performance connector that provides fiber optic connections in harsh environments, it is mainly used for communication infrastructure, military, marine, and industrial applications. In particular, it is durable and is designed to be used in harsh environments.
FD-SUB Connector
FOSTEC FD-SUB connector incorporating FOSTEC's superior optical connection technology, it is mainly used to connect devices such as computers and industrial equipment in electronic and data communication systems.
38999 connector developed for the transmission of electrical and optical signals and is widely used in aerospace, military, marine, and industrial automation systems. FOSTEC's superior cable assembly manufacturing technology ensures more stable loss values and performance.
FFOCA
A ruggedized optical connector for military and tactical communications, designed for use in extreme environments. It is mainly used to provide fast and reliable communication in situations such as military, defense industry, disaster response and field communication.
PTLC
An outdoor connector which comes pre-loaded with LC connectors, providing a quick and easy installation solution.
ODC
A high-performance connector that provides fiber optic connections in harsh environments, it is mainly used for communication infrastructure, military, marine, and industrial applications. In particular, it is durable and is designed to be used in harsh environments.
FD-SUB Connector
FOSTEC FD-SUB connector incorporating FOSTEC's superior optical connection technology, it is mainly used to connect devices such as computers and industrial equipment in electronic and data communication systems.
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About
"Founded in 2001, FOSTEC has established itself as a leading company in the Optical Communication Industry through 21 years of diverse experiences. We supply to various Domestic Institutions and Companies and we also export Overseas Companies, composed of 40 countries including United States of America, Taiwan, Japan, and Several European Countries to achieve a steady growth and sales goal.
We develop and produce Expanded Beam Optical Conenctor for the first time in Domestic Company, based on this technology, we are actively participating in various defense projects such as Tactical Information"
We develop and produce Expanded Beam Optical Conenctor for the first time in Domestic Company, based on this technology, we are actively participating in various defense projects such as Tactical Information"
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