The design and fabrication of optical fiber Bragg grating filter with dual-bandpass pair by phase sampling and phase shift techniques
✍ Scribed by Li Xia; P. Shum; Quoc Nam Ngo; Tee Hiang Cheng
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- English
- Weight
- 92 KB
- Volume
- 51
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
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, respectively. The channel spacing between the pair can be designed by the phase sampling period, as well as the wavelength spacing in the dual‐bandpass can be controlled through the phase shift length. This new kind of bandpass structure can be applied in the ultranarrow filtering in multichannel, multiwavelength distributed feedback Bragg lasing, photonic generation of microwave signal etc. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 790–791, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24140