학술논문
Optimised process for fabricating tapered long period gratings
Document Type
Conference
Author
Source
2017 25th Optical Fiber Sensors Conference (OFS) Optical Fiber Sensors Conference (OFS), 2017 25th. :1-4 Apr, 2017
Subject
Language
Abstract
The process of fabricating tapered long period gratings (TLPGs) using a CO 2 laser is described. TLPGs with a period spacing of 378 μm, were fabricated by optimization of the taper waist diameter and careful control of the duty-cycle and its uniformity along the length of the grating. The 6-period TLPGs exhibited a pass-band insertion loss of 0.6 dB, resonance band extinction values of 3 dB and had a physical length of 2.27 mm.