In this investigation, we propose and demonstrate experimentally tunable and stable dual-wavelength erbium doped fiber (EDF) double-ring laser scheme using different coupling losses inside cavity loop for wavelength and mode spacing tuning. Besides, a shorter unpumped EDF is also used to filter the
Ultra-short wavelength filters using mode-related dispersion in dual-mode waveguides
✍ Scribed by Tzong-Yow Tsai; Zhi-Cheng Lee; Jong-Rong Chen; Chi-Chung Chen; Yen-Cheng Fang; Ming-Hong Cha
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 199 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
Abstract
An ultra‐short‐wavelength filter using photonic band gap (PBG) mode‐related dispersion in a two‐moded waveguide is proposed. It is verified using the finite‐difference time‐domain (FDTD) method, such that two channels on the PBG edges are affected by opposite dispersive effects and can be separated by an ultra‐short coupler length much shorter than the required length without the assistance of PBG dispersion. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 225–227, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20951
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