Title :
Narrow-band rejection filters with negligible backreflection using tilted photoinduced gratings in single-mode fibers
Author :
Haggans, Charles W. ; Singh, Harmeet ; Varner, Wayne F. ; Li, Yaowen ; Zippin, Mark
Author_Institution :
3M Fiber Opt. Lab., St. Paul, MN, USA
fDate :
5/1/1998 12:00:00 AM
Abstract :
Suppression of the forward propagating LP/sub 01/ core mode of >17 dB with <-30-dB backreflection over a narrow wavelength band is demonstrated utilizing a tilted photoinduced Bragg grating in a deep depressed inner cladding single-mode fiber (SMF). Theoretical and experimental results detailing the tilted grating filter performance in matched cladding, depressed inner cladding, and photosensitive cladding SMF´s are presented.
Keywords :
diffraction gratings; optical communication equipment; optical design techniques; optical fibre cladding; optical fibre filters; backreflection; deep depressed inner cladding single-mode fiber; depressed inner cladding; forward propagating LP/sub 01/ core mode suppression; matched cladding; narrow wavelength band; narrow-band rejection filters; negligible backreflection; optical communications equipment; optical fibre gratings; photosensitive cladding; single-mode fibers; tilted grating filter; tilted photoinduced Bragg grating; tilted photoinduced gratings; Band pass filters; Bragg gratings; Fiber gratings; Filtering; Matched filters; Narrowband; Optical fiber communication; Optical fiber filters; Optical fibers; Optical propagation;
Journal_Title :
Photonics Technology Letters, IEEE
