Description
IDIL Fibres Optiques offers tunable Fiber Bragg Gratings (FBG) using piezoelectric stack and electrical voltage.
A way to tune the optical wavelength (nanometer scale) of a photo-imprinted Fiber Bragg Grating is to fix it on a piezoelectric stack. When applying an electric voltage on the piezo, it creates an elongation of the FBG.
Using electrical voltage to tune the optical wavelength over a small spectral range represents an innovative method. Indeed, the only voltage variation applied on the piezoelectric stack to modify the fiber grating wavelength provides great flexibility of use (Figure 1).
Moreover, fixing the grating on a piezoelectric stack makes the wavelength behavior insensitive to temperature (Figure 2). It makes it suitable for various applications such as fiber sensing systems, tunable fiber lasers, high power amplifiers, telecommunications systems and other custom applications where tuning of the FBG wavelength is needed.
https://www.idil-fibres-optiques.com/product/tunable-fiber-bragg-gratings/
Related product: Fiber stretcher
https://www.idil-fibres-optiques.com/product/fiber-stretcher/
Tunable Fiber Bragg Gratings
Specifications
| Center Wavelength Range: | 1000 – 2000 nm |
|---|---|
| FBG Length: | From 1mm to 20mm, Custom |
| Reflectivity: | Not Specified |
| Fiber Type: | SM, PM, RC |
| Weight (typical): | 10 g g |
| Packaging Dimensions: | 45 (L) x 7 (l) x 10 (H) mm³ mm³ |
| Operational Temperature: | From -20°C to +55°C °C |
| Power Handling: | Up to 10 W (CW) W |
| Connectors: | Bare fiber, FC, custom |
| Max. Voltage Range: | 150 V (more is available upon request) V |
| Fiber Length: | Custom |
| Insertion Loss: | < 0.1 dB dB |
| FBG Profile: | Uniform FBG, Chirped FBG, Blazed FBG, FBG array |
| Tuning Range: | Depending on electrical voltage and piezo stack |
| Tuning Range: | 1.8 nm / 150 V (piezo = 17 mm) nm |
| Tuning Range: | 1.2 nm / 100 V (piezo = 18 mm) nm |
| Tuning Method: | Electrical |
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Features
Almost linear wavelength variation
Temperature insensitive
Low insertion loss
High speed
Ultra-compact packaging
Custom FBG specifications
Large choice of terminations
Can be driven with general purpose electronics
High reliability and repeatability
Applications
Ultrafast dynamics (dispersion compensation, gain flattening, add/drop)
Tunable lasers
Spectrometers
All applications where tuning of the FBG wavelength is required
Frequently Asked Questions
What is a tunable Fiber Bragg Grating (FBG)?
How is the optical wavelength of a tunable FBG tuned?
What are the applications of a tunable FBG?
Is a tunable FBG temperature sensitive?
What are the features of a tunable FBG?
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