Contact Us
WOP | FemtoFBG
  • Home
  • WOP | FemtoFBG

FemtoFBG

Laser workstation for fiber Bragg gratings writing

FemtoFBG is a laser micromachining workstation optimized for fiber Bragg gratings (FBG) writing.

It is a perfect choice for scientific laboratories, R&D centers, and industrial clients working with telecommunications, distributed sensors, and Bragg Grating based devices development.

WOP | FemtoFBG

Femtosecond FBG writing is a proven technology for universal Bragg Gratings writing in various optical fibers, including not UV-sensitized fibers.​

The main advantage of femtosecond laser writing is the ease of process tuning compared to a process using a UV phase mask.

Femtosecond lasers can be applied for Point-by-Point (PbP) and Line-by-Line (LbL) writing for up to 2nd order FBGs writing in various optical fibers, including multicore fibers. The smallest pitch in PbP writing is ~1 µm.​


Main Features :
  • Direct writing (point-by-point, line-by-line)
  • Wide range Reflection/Transmission parameters control
  • Variety of standard optical fibers


FBG writing workstation benefits :
  • Professional : Every workstation is built for accurate process control using leading hardware solutions
  • Easy-to-use : The system is designed for a simplified FBG writing process
  • Flexible : A single system can be used for different FBG writing techniques
  • Full Support : We will install the workstation at your premises and train your team
  • References : Our systems are installed in a diverse range of businesses, research universities, and organizations
  • 1 Year Warranty : And after-warranty service


FemtoFBG configurations :
Standard Advanced Custom
Micromachining technologies Direct laser writing Direct laser writing
The system can include fiber drilling, marking, phase mask writing, and other functionalities
Laser Single-wavelength Dual-wavelength
Design wavelengths/wavelengths can be chosen, including integration of the customer’s provided laser source
FBG writing options
Point-by-Point (PbP),
Line-by-Line (LbL)
Point-by-Point (PbP),
Line-by-Line (LbL)
 Optional inclusion of alternative writing techniques or techniques
Fibers Single-mode fibers Single-mode fibers Multicore fibers, dual-cladding fibers
Maximum fiber diameter 1 mm Customer’s choice
Customer’s choice
Maximum working range 160x160x60 160x160x60
Up to 300×300
Flat samples processing Included Included
Optional
Fiber core autofocus – Digital Digital
Polarization control – Motorized
Motorized Linear Polarization rotation, Circular, Elliptical, Azimuthal, or other
Writing With positioning system With a positioning system and/or scanning unit
Positioning and scanning units can be chosen by the customer
Power control Integrated external control Integrated external control
Option for real-time pulse energy measurement
Vibration control Passive Passive
Passive/Active
Fiber feeding Manual Manual
Reel-to-reel mechanism for writing without immersion oil


Uniform & ApodisedChirped, Phase shifted & Sampled





FemtoFBG advantages vs. other methods :
  • Writing through the cladding - no need to strip the fibers before FBG inscription
  • All fiber types - no need for UV photosensitivity
  • Easy process tuning for different gratings - the mask is not required
  • Nearly no system maintenance costs compared to excimer laser-based system


FBG application examples :
  • Line-by-Line (LbL) inscribed FBG top view (Image attached in gallery)
  • Line-by-Line (LbL) inscribed FBG view rotated by 90° (Image attached in gallery)
  • Point-by-Point (PbP) inscribed FBG top view (Image attached in gallery)
  • Point-by-Point (PbP) inscribed FBG view rotated by 90° (Image attached in gallery)
  • FBG writing in SMF (Image attached in gallery)


Brochures & Datasheets :

   FemtoFBG Laser System (pdf / English)


OneClick Whatsapp Chat