LED THT EOLD-1550-095-1
High Precision SWIR Source for Sensing and Industrial Systems – 1550nm IR LED EOLD-1550-095-1
The EOLD-1550-095-1 is a high-performance 1550 nm short-wave infrared (SWIR) LED engineered for advanced sensing, spectroscopy, and industrial applications. Developed by EPIGAP OSA Photonics, this infrared emitter delivers stable and reliable optical output for demanding scientific and industrial environments. Housed in a robust TO-46 metal package with a flat window, the LED provides excellent durability, thermal stability, and long operational life. Operating within the SWIR spectrum, it ensures accurate and consistent infrared illumination for applications requiring dependable optical performance. United Spectrum Instruments is the authorised distributor of EPIGAP OSA Photonics products in India.
Designed for advanced sensing and analytical systems, the EOLD-1550-095-1 is widely used in gas sensing, biomedical diagnostics, spectroscopy, and optical measurement applications. Its wide emission profile enables uniform infrared coverage, improving detection efficiency and enhancing measurement reliability in laboratory and industrial environments. The flat window design supports efficient light distribution, making it suitable for compact sensing systems and specialised optical equipment requiring stable SWIR illumination. Its stable radiant output ensures dependable operation in continuous-use monitoring and automation applications.
The compact and durable construction of the EOLD-1550-095-1 allows seamless integration into industrial automation systems, laboratory instruments, and advanced sensing equipment. Its TO-46 metal housing supports efficient heat dissipation, helping maintain stable optical performance during prolonged operation. Combining wide-angle SWIR illumination, rugged packaging, and dependable long-term performance, the EOLD-1550-095-1 provides an excellent solution for applications requiring precise, stable, and high-quality infrared light sources.
Understanding LED THT EOLD-1550-095-1
The EOLD-1550-095-1 operates at a peak wavelength of 1550 nm (1520–1580 nm range), a key region for optical communication and absorption-based sensing. It delivers radiant power of ~3.5–7.5 mW at 100 mA, ensuring stable and reliable performance.
Unlike lens-based narrow emitters, this LED features a wide viewing angle of ~100°, enabled by its flat window design, allowing uniform illumination across larger sensing areas.
Its hermetic TO-46 package ensures excellent thermal stability and environmental protection, making it suitable for continuous industrial and scientific applications.
Technical Specifications
| Parameter | Specification |
| Product | EOLD-1550-095-1 |
| Type | SWIR Infrared LED |
| Peak Wavelength | 1550 nm (1520–1580 nm) |
| Optical Output Power | ~3.5 – 7.5 mW |
| Forward Current | Up to 100 mA |
| Forward Voltage | ~1.3 – 1.8 V |
| Spectral Width (FWHM) | ~125 nm |
| Viewing Angle | ~100° |
| Radiant Intensity | ~4–8 mW/sr |
| Package | TO-46 Metal Can (Flat Window) |
| Mounting Type | Through-hole |
| Operating Temperature | -40°C to +85°C |
| Compliance | RoHS & REACH compliant |
Key Features and Advantages
1550 nm SWIR Wavelength for Advanced Optical Applications
Operating at 1550 nm, the LED is optimised for optical communication, spectroscopy, and gas sensing, where this wavelength offers low attenuation and strong absorption characteristics.
Wide Beam Angle for Uniform Illumination
With a ~100° viewing angle, the flat window design ensures broad and even infrared distribution, making it suitable for large-area sensing systems.
Stable Radiant Output for Reliable Detection
Delivering up to ~7.5 mW radiant power, the LED provides consistent signal strength, improving measurement accuracy in industrial and analytical environments.
Flat Window Design for Diffused Emission
Unlike lens-based LEDs, the flat window enables uniform light dispersion, enhancing performance in proximity sensing, gas detection, and optical monitoring systems.
Optimised for Optical Communication Systems
The 1550 nm wavelength is widely used in fibre-optic communication due to minimal signal loss, making this LED suitable for testing and sensing in optical networks.
Robust TO-46 Hermetic Package
The metal package ensures excellent mechanical strength, thermal stability, and protection against environmental factors, ensuring long-term durability.
Efficient Thermal Management
TO-can packaging supports effective heat dissipation, enabling stable operation even at higher drive currents (up to 100 mA).
Industrial-Grade Reliability
Designed for demanding environments, the LED offers long operational life and dependable performance, reducing downtime and maintenance costs.
Applications Across Industries
Optical Communication & Fibre Optics
The 1550 nm wavelength is widely used in fibre-optic communication systems due to low attenuation, enabling efficient long-distance signal transmission.
Gas Sensing & Environmental Monitoring
Used in infrared absorption-based gas detection systems, enabling accurate measurement of gas concentrations in industrial and environmental applications.
Spectroscopy & Optical Analysis
Ideal for spectroscopy applications where SWIR wavelengths enable precise chemical analysis and material identification.
Biomedical & Medical Applications
Applied in diagnostic systems and optical imaging, where SWIR wavelengths enable deeper tissue interaction and non-invasive analysis.
Biometric & Security Systems
Supports biometric authentication systems and security technologies requiring reliable infrared illumination.
Industrial Automation & Process Control
Used in automated systems for object detection, positioning, and process monitoring in manufacturing environments.
Research & Scientific Applications
Widely used in photonics research, experimental setups, and optical testing systems requiring stable and uniform SWIR light sources.
Why Choose United Spectrum Instruments?
United Spectrum Instruments is a trusted distributor of advanced photonics components in India. We provide expert consultation, product selection guidance, and integration support for infrared LEDs like the EOLD-1550-095-1. With strong technical expertise and responsive after-sales service, we ensure reliable sourcing and long-term performance. Our commitment to quality and customer success enables industries to implement efficient sensing, automation, and analytical solutions tailored to their specific application requirements.
- High-performance LEDs suitable for automation and machine vision systems
- Quick coordination with manufacturer for technical documentation and compliance
- Availability of LEDs for harsh industrial and research environments
- Efficient customer communication and dedicated technical coordination
FAQs
What is the wavelength of EOLD-1550-095-1?
It operates at approximately 1550 nm in the SWIR spectrum.
What is the optical output power?
It delivers up to approximately 7.5 mW radiant power at 100 mA.
What is the viewing angle?
It offers a wide beam angle of about 100° for uniform illumination.
What applications is it best suited for?
It is used in optical communication, gas sensing, spectroscopy, and biomedical systems.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for reliable industrial use.
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FAQs
What is the wavelength of EOLD-1550-095-1?
It operates at approximately 1550 nm in the SWIR spectrum.
What is the optical output power?
It delivers up to approximately 7.5 mW radiant power at 100 mA.
What is the viewing angle?
It offers a wide beam angle of about 100° for uniform illumination.
What applications is it best suited for?
It is used in optical communication, gas sensing, spectroscopy, and biomedical systems.
Is it suitable for industrial environments?
Yes, it operates from -40°C to +85°C and is designed for reliable industrial use.
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