Tunable Fiber Bragg Gratings

Name: Tunable Fiber Bragg Gratings
Brand: IDIL by Fiber Optics Group
Availability: InStock

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/

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

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Ships from:

France

Sold by:

IDIL by Fiber Optics Group

On FindLight:

since 2015

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Frequently Asked Questions

What is a tunable Fiber Bragg Grating (FBG)?

A tunable Fiber Bragg Grating (FBG) is a device that allows for the tuning of the optical wavelength of a photo-imprinted Fiber Bragg Grating using a piezoelectric stack and electrical voltage.

How is the optical wavelength of a tunable FBG tuned?

The optical wavelength of a tunable FBG is tuned by fixing it on a piezoelectric stack and applying an electric voltage on the piezo, which creates an elongation of the FBG.

What are the applications of a tunable FBG?

A tunable FBG is 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.

Is a tunable FBG temperature sensitive?

No, fixing the grating on a piezoelectric stack makes the wavelength behavior insensitive to temperature.

What are the features of a tunable FBG?

The features of a tunable FBG include electronically controlled tuning of the FBG, almost linear wavelength variation, temperature insensitivity, low insertion loss, high speed, ultra-compact packaging, custom FBG specifications, large choice of terminations, can be driven with general purpose electronics, and high reliability and repeatability.