Advanced experiments with an Erbium doped fiber laser

• Type: Article in International Conference Proceedings Book
• Date: 2014

Authors

Paulo V S Marques (Author) Other; Manuel B Marques (Author) FCUP; Carla C Rosa (Author) FCUP

Conference proceedings International

Title: 12TH EDUCATION AND TRAINING IN OPTICS AND PHOTONICS CONFERENCE

12th Education and Training in Optics and Photonics Conference

Porto, PORTUGAL, JUL 23-26, 2013

Indexing

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Scientific classification

FOS: Natural sciences > Physical sciences

Other information

Authenticus ID: P-00A-819

DOI: 10.1117/12.2070752

Abstract (EN): This communication describes an optical hands-on fiber laser experiment aimed at advanced college courses. Optical amplifiers and laser sources represent very important optical devices in numerous applications ranging from telecommunications to medicine. The study of advanced photonics experiments is particularly relevant at undergraduate and master level. This paper discusses the implementation of an optical fiber laser made with a cavity built with two tunable Bragg gratings. This scheme allows the students to understand the laser working principles as a function of the laser cavity set-up. One or both of the gratings can be finely tuned in wavelength through applied stress; therefore, the degree of spectral mismatch of the two gratings can be adjusted, effectively changing the cavity feedback. The impact of the cavity conditions on the laser threshold, spectrum and efficiency is analyzed. This experiment assumes that in a previous practice, the students should had already characterized the erbium doped fiber in terms of absorption and fluorescent spectra, and the spectral gain as a function of pump power.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8