Title :
Demonstration of an etched cladding fiber Bragg grating filter with reduced tuning force requirement
Author :
Lyons, E.R. ; Lee, H.P.
Author_Institution :
Raytheon Syst. Co., El Segundo, CA, USA
Abstract :
A novel tunable fiber Bragg grating (FBG) filter with a chemically etched cladding has been demonstrated. By reducing the cladding diameter of a FBG through etching with HF, the tension tuning force can be lowered by over an order of magnitude. Wavelength tuning up to a failure point of 21.2 nm has been demonstrated along with repeated cycling over a 9 nm tuning range. Observations of increased coupling to resonant cladding modes in the etched FBG´s are also noted.
Keywords :
Bragg gratings; etching; optical fibre cladding; optical fibre fabrication; optical fibre filters; optical tuning; FBG filter; HF; HF etching; chemically etched cladding; cladding diameter; etched cladding fiber Bragg grating filter; reduced tuning force requirement; repeated cycling; resonant cladding modes; tension tuning force; tunable fiber Bragg grating; wavelength tuning; Bragg gratings; Capacitive sensors; Etching; Fiber gratings; Laser tuning; Optical fiber devices; Optical fiber filters; Optical fibers; Optical tuning; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
