Title :
Highly efficient acoustooptic tunable filter based on cladding etched single-mode fiber
Author :
Qun Li ; Xiaoming Liu ; Jiangde Peng ; Bingkun Zhou ; Lyons, E.R. ; Lee, H.P.
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
fDate :
3/1/2002 12:00:00 AM
Abstract :
The efficiency enhancement of an acoustooptic tunable filter on cladding etched single-mode fiber (SMF) is investigated experimentally. When the fiber diameter is etched down to 30 μm, the acoustooptic coupling efficiency from the LP/sub 01/ core mode to the LP/sub 11/ cladding mode was increased by an order of magnitude, and the RF power consumption was reduced by two orders of magnitude. A highly efficient 8-cm-long 25-μm-thick AOTF on cladding etched SMF with an insertion loss of <0.2 dB, and RF power as low as 1.1 mW was demonstrated.
Keywords :
acousto-optical filters; etching; optical fibre cladding; optical fibre filters; optical tuning; 0.2 dB; 1.1 mW; 25 micron; 30 micron; AOTF; LP/sub 01/ core mode; LP/sub 11/ cladding mode; RF power consumption; acoustooptic coupling efficiency; acoustooptic tunable filter; cladding etched single-mode fiber; efficiency enhancement; etching; fiber diameter; insertion loss; mode coupling coefficient; Acoustic waves; Energy consumption; Erbium-doped fiber amplifier; Etching; Filters; Insertion loss; Optical fiber devices; Optical fiber polarization; Page description languages; Radio frequency;
Journal_Title :
Photonics Technology Letters, IEEE
