Spectral filtering of gain gratings and spectral evolution of holographic laser oscillators

Author

Minassian, Ara ; Crofts, Graham J. ; Damzen, Michael J.

Author_Institution

Blackett Lab., Imperial Coll. of Sci., Technol. & Med., London, UK

Volume

36

Issue

7

fYear

2000

fDate

7/1/2000 12:00:00 AM

Firstpage

802

Lastpage

809

Abstract

We present results of the spectral filtering properties of volume gain gratings and their role as diffractive optical elements in the spectral evolution of holographic laser oscillators. We show that the gain grating acts as a spectral filter with a filter bandwidth that is approximately inversely proportional to the medium length. We investigate holographic laser oscillators and find that, when either the gain grating is written by monochromatic radiation or when it is initiated from broad-band radiation, the output of such oscillators can evolve to single longitudinal mode in correspondence to experimental observations.

Keywords

diffractive optical elements; holographic gratings; laser cavity resonators; laser modes; optical filters; optical phase conjugation; diffractive optical element; holographic laser oscillator; self-pumped phase conjugation; single longitudinal mode; spectral evolution; spectral filtering; volume gain grating; Bragg gratings; Diffraction gratings; Filtering; Holographic optical components; Holography; Laser beams; Laser modes; Optical filters; Optical resonators; Oscillators;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.848352

Filename

848352