Continuous-wave lasing of hybrid lasers

Author

Yan, Li

Author_Institution

Dept. of Comput. Sci. & Electr. Eng., Maryland Univ., Baltimore, MD, USA

Volume

33

Issue

7

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

1075

Lastpage

1083

Abstract

The continuous-wave (CW) lasing of hybrid lasers, which contain a broad-band inhomogeneously broadened laser medium and a narrow-band homogeneously broadened laser medium in a single cavity, is analyzed theoretically. The interactions of the laser modes and two gain media are solved self-consistently using the coupled rate equations. The spectral, gain, and power characteristics under different gain conditions are simulated. It is shown that a small gain from a second narrowband laser medium can effectively shape the lasing spectrum and improve the spectral concentration of the hybrid laser. The total saturated gain profile of the hybrid laser is relatively smooth, due to saturation of the gain of the narrow-band medium to a smaller and below-threshold level

Keywords

coupled mode analysis; laser cavity resonators; laser modes; laser theory; neodymium; optical saturation; solid lasers; spectral line broadening; CW lasing; Nd:YLF; Nd:phosphate glass; broad-band inhomogeneously broadened laser medium; continuous-wave lasing; coupled rate equations; gain characteristics; hybrid lasers; laser mode interactions; lasing spectrum shaping; narrow-band homogeneously broadened laser medium; power characteristics; self-consistent solutions; simulation; single cavity; spectral characteristics; spectral concentration; total saturated gain profile; Equations; Laser beams; Laser mode locking; Laser modes; Laser stability; Laser theory; Narrowband; Neodymium; Oscillators; Pump lasers;

fLanguage

English

Journal_Title

Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

0018-9197

Type

jour

DOI

10.1109/3.594868

Filename

594868