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Laser wavelength considerations for inscription of Fiber Bragg Gratings: specific to applications in fiber lasers and amplifiers

G. SRIKANTH1,* , A. K. NATH2

Affiliation

  1. Solid State Laser Division, Raja Ramanna Centre for Advanced Technology, Indore-452 013, India
  2. Department of Mechanical Engineering, IIT, Kharagpur, India

Abstract

Fiber Bragg Gratings (FBGs) have been inscribed using laser wavelengths ranging from 157 nm to 800 nm. Different wavelengths are suitable for inscription of gratings depending on fiber composition. FBGs inscribed by different wavelengths often have different characteristics, namely thermal stability, magnitude of reflectivity and some times even level of spectral purity. Hence, the choice of laser source/ wavelength has to be determined by the intended application of the FBGs. In the current report, we suggest a suitable laser wavelength for inscription of FBGs depending on the intended application, with a particular emphasis on applications in fiber lasers and amplifiers, after extensive review of recent developments..

Keywords

FBG, Laser source considerations, Inscription, Fiber laser application.

Submitted at: Jan. 11, 2008
Accepted at: Feb. 18, 2008

Citation

G. SRIKANTH, A. K. NATH, Laser wavelength considerations for inscription of Fiber Bragg Gratings: specific to applications in fiber lasers and amplifiers, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 2, pp. 413-421 (2008)