FBG sensors
Fiber Bragg Gratings (FBGs) are optical sensors built by permanently inscribing a periodic refractive‑index modulation inside an optical fiber’s core. This periodic “grating” reflects a specific wavelength (the Bragg wavelength), while transmitting the rest. Any changes in strain, temperature, or pressure result in measurable shifts in the reflected wavelength.
Componous has in-house capabilities of producing FBGs of various profiles:
- Top-hat
- Apodized
- Chirped
- Tilted
- Phase shifted
Both single FBGs or FBG arrays can be manufactured upon request
Versatile Fiber-Optic Sensors for every Application
Capture a wide range of physical parameters with unmatched precision (temperature, strain, vibrations, and more!
Componous FBGs
All of our FBGs are designed and manufactured in-house utilizing femtosecond laser inscription technology. This process enables us to produce high-quality Bragg gratings with exceptional spectral stability, even at extreme temperatures exceeding 800 °C. Our flexible manufacturing process allows full customization of grating characteristics to meet the requirements of demanding sensing applications. Componous can produce FBGs in standard and non-standard optical fiber types, coatings and sizes.
Coating types
- Acrylate for standard use (up to ~85°C)
- Polyimide for exceptional strain transfer (up to 300°C)
- Custom for special applications (inscription on any step index fiber)
*custom furcation, metal coating, sensor packaging is available
Grating types
- Top-hat (uniform) for standard use
- Apodized for improved spectral clarity
- Chirped for braoad spectral reflection
- Tilted for multi-parameter sensing
- Phase shifted for ultra-precise measurements
- Custom FBG arrays for multipoint sensing
Micro-optics
Beyond FBG manufacturing, we provide advanced laser-based microfabrication for high-precision optical and photonic components. Through two-photon polymerization and direct micro-machining of glass (SLE, ablation), we can create complex 3D microstructures with sub-micron accuracy within glass substrates and on their surfaces.
