Description
IDIL (by Fiber Optics Group) 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://idil-fiber-optics.com/product/tunable-fiber-bragg-grating-tfbg/
Related product: Fiber stretcher
Tunable Fiber Bragg Gratings
Specifications
| FBG Length: | Custom, From 1mm to 20mm |
|---|---|
| Reflectivity: | Not Specified |
| Tuning Method: | Electrical |
| Tuning Range: | 1.2 nm / 100 V (piezo = 18 mm) nm |
| Tuning Range: | 1.8 nm / 150 V (piezo = 17 mm) nm |
| Tuning Range: | Depending on electrical voltage and piezo stack |
| FBG Profile: | Uniform FBG, Chirped FBG, Blazed FBG, FBG array |
| Insertion Loss: | < 0.1 dB dB |
| Fiber Length: | Custom |
| Fiber Type: | SM, PM, RC |
| Max. Voltage Range: | 150 V (more is available upon request) V |
| Connectors: | Bare fiber, FC, custom |
| Power Handling: | Up to 10 W (CW) W |
| Operational Temperature: | From -20°C to +55°C °C |
| Packaging Dimensions: | 45 (L) x 7 (l) x 10 (H) mm³ mm³ |
| Weight (typical): | 10 g g |
Download Data Sheet
Features
- Electronically controlled tuning of the FBG
- 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
- Optical sensors
- 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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