1) Uniform FBG
Features：
Various options of fiber type, wavelength, reflectivity, bandwidth, etc.
Athermal package available
High reliability
Applications：
Pumping laser wavelength locking
Fiber sensor
Fiber filter
2) Apodized FBG
Featrues：
Center wavelength at ITU Grid, or customization
High isolation
Athermal package available
Various connector available
High reliability
Applications：
DWDM filter
Fiber sensor
Fiber laser
Wavelength multiplexing/demultiplexing module
3) Chirped FBG
Features：
Center wavelengths on ITU grid
Wide bandwidth
Athermal package available
High reliability
Applications：
FTTH reflector
Gain flattening filter
Fiber sensor
Fiber filter
Dispersion compensation module
4) Double Clad FBG
Features：
Specially designed for fiber laser
Suitable for high power
Ultra-precise matching
Wide variety of double clad fiber type
Wide bandwidth and reflectivity range
High reliability
Applications：
Fiber laser
Pump lockers
Fiber sensor
5) Long Period FBG
Features：
Low insertion loss
Transmissive grating
High sensitivity
Applications：
Gain flattening filter
Band-pass filter
Mode conversion
Optical add-drop multiplexer (OADM)
Biomedical sensor
Band-stop filter
