The interrogation of fiber Bragg grating sensors with multimode laser diodes is theoretically and experimentally analyzed using two different approaches: serrodyne and dithering techniques. It is also demonstrated that by using several laser modes it is possible to enhance the measurement range with
Direct modulation of multimode fiber Bragg grating external cavity lasers
✍ Scribed by Qing-Yang Xu; Minhui Yan; Chang-Qing Xu; Xun Li
- Publisher
- John Wiley and Sons
- Year
- 2011
- Tongue
- English
- Weight
- 341 KB
- Volume
- 53
- Category
- Article
- ISSN
- 0895-2477
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Direct modulation characteristics have been investigated for a Fabry‐Perot laser diode coupled with a multimode fiber Bragg grating.Large signal modulation at 2.5 Gb/s with none‐return‐to‐zero format has been demonstrated for the 2‐cm long multimode fiber Bragg grating external cavity laser. By using a short external cavity of about 7.5 mm, small‐signal frequency responses larger than 8 GHz are achieved. © 2011 Wiley Periodicals, Inc. Microwave Opt Technol Lett, 2011; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26083
📜 SIMILAR VOLUMES
## Abstract The performances of gain and noise figure of an L‐band EDFA utilizing a ring laser cavity is demonstrated. It uses a fiber Bragg grating (FBG), arranged to propagate in opposition to the amplifier signal by a pair of circulators, to provide laser feedback. A flat‐gain spectrum with less
## Abstract A novel all‐optical technique for microwave generation using photonic crystal fiber Brillouin laser is presented, and a 9.78‐GHz microwave signal generator based on the Brillouin laser is experimentally realized. The Brillouin laser is based on a fiber Fabry‐Perot cavity with fiber Brag