Fiber Bragg Gratings (FBG) and Sensors

Technica is a leading developer, manufacturer, and provider of premium quality Fiber Bragg Gratings, FBG sensing arrays and cables, FBG sensors, and FBG tools and accessories. 

The company’s state-of-the-art manufacturing equipment includes excimer and femtosecond lasers, ultimate precision assembly and measurement stations and instruments, state-of-the-art processes for touch-free strip and recoat technologies for various fiber coating materials, and through-the-coating FBG writing technology. Technica manufactures FBGs in many types of fiber with FBG Center Wavelength specifications from 850 nm to 1650 nm, Bandwidth from 0.1 nm to 50 nm, Reflectivity from 1% to 99.9%, high and ultra-high SLSR, FBG physical lengths from 1 mm to 50 mm, and adjacent FBG spacing (in arrays) from 0.5 mm to kilometers. Technica offers standard to ultra-high strain resistant FBGs to 500kpsi, as well as standard to extreme temperature rated FBGs, on the low-temperature side to -270C and on the high-temperature side to +1,000C. 

In order to request an FBG quote, customers are invited to review and edit the example specifications below:

  • CW: 1530, 1535, 1540, 1545, and 1550 m (example)
  • CW Tolerance: +/- 0.5 nm (typical, or please specify)
  • BW (Bandwidth @ 3dB): 0.3 nm (typical, or please specify) 
  • BW Tolerance: +/- 0.05 nm (typical, or please specify)
  • Reflectivity: >75% (typical, or please specify)
  • SLSR (Side Lobe Suppression Ratio): >15dB (typical, or please specify)
  • Fiber type: smf28 (or thin, radiation proof, bend insensitive, PM, or please specify)  
  • Primary fiber coating: polyimide (or acrylate, Secondary (ruggedization) protection: Teflon, GFRP, PEEK, Ceramic, Steel, Inconel (or please specify)  
  • Temperature rating: 100C (or please specify from -270C to +1,000 Degrees Celsius)
  • Strain rating: +/- 10,000 microstrain typical (or please specify from 1,000ue to 50,000ue)
  • Optical Connectors: FC/APC (or LC, SC, at one end or both, or none, or please specify)
  • FBG Construction Example: FC/APC – 1 m fiber – FBG – 1 m fiber – FC/APC (or please specify)
  • FBG Array Construction Example: FC/APC – 1 m fiber – FBG1 – 1 m fiber – FBG2 – 2 m fiber – FBG3 – … – FBG49 – 0.5 m fiber – FBG50 – 1 m fiber – FC/APC (or please specify) 

We also offer an expanding family of premium grade Packaged FBGs and FBG Sensors including Athermal FBGs (T95), Strain and Temperature FBG Sensing Cables (T100s), and Packaged Sensors to measure Strain (T200s), Acceleration (T300s), Displacement (T400s), Tilt/Angle (T500s), Pressure (T600s), Acoustic (T700s), Temperature (T800s) and Special Purpose Sensors (T900s).

Our company’s product and technology portfolio is actively expanding. We welcome you to contact us with your specific FBG based needs, opportunities and challenges.  

Technica is a US company headquartered in Atlanta, USA, with Advanced Technology Centers in USA, Sweden, and China, and with mass-production facilities in Beijing, China.