Phase shifted Bragg gratings formed in optical fibres by post-fabrication thermal processing

The design and fabrication of optical fi

The design and fabrication of optical fiber Bragg grating filter with dual-bandpass pair by phase sampling and phase shift techniques

✍ Li Xia; P. Shum; Quoc Nam Ngo; Tee Hiang Cheng 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 92 KB

## Abstract Phase sampling and phase shift techniques are introduced in a uniform fiber Bragg grating structure to achieve a multi‐bandpass filter with ultranarrow transmission bandwidth. A pair of dual‐bandpass transmission windows are opened at 1542.32, 1542.36, and 1542.66, 1542.71 nm, respectiv