Passive nonlinear technique to mode-lock, stabilize and ensure bi-directionality in a solid state ring laser

Author

Thien Trang ; Dang, Tri ; Diels, Jean-Claude

Author_Institution

New Mexico Univ., Albuquerque, NM, USA

fYear

2002

fDate

24-24 May 2002

Abstract

Summary form only given. We present a solution that ensures bi-directional cw mode-locked (CWML) operation, combining saturable absorbers with an energy limiter. Multiple quantum wells (MQW) grown on bulk GaAs are inserted in the cavity between two f = 22.91 mm lenses. Bi-directional operation is preferred since the quantum well saturation energy in a standing wave is effectively 1/4 of that for a travelling wave. The two-photon-induced carriers in GaAs create a negative lens, leading to beam magnification. The slit at that position acts as an energy limiter, suppressing Q-switched operation, provided the GaAs is properly positioned.

Keywords

III-V semiconductors; Q-switching; gallium arsenide; laser cavity resonators; laser mode locking; laser stability; optical limiters; optical saturable absorption; quantum well devices; ring lasers; solid lasers; two-photon processes; GaAs; Nd:YVO/sub 4/ ring laser; Q-switched operation suppression; YVO/sub 4/:Nd; beam magnification; bi-directionality; bulk GaAs; energy limiter; mode locking; multiple quantum wells; negative lens; passive nonlinear technique; quantum well saturation energy; saturable absorbers; solid state ring laser; stabilization; standing wave; two-photon-induced carriers; Bidirectional control; Gallium arsenide; Laser mode locking; Laser stability; Lenses; Quantum well devices; Quantum well lasers; Ring lasers; Solid lasers; Solid state circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the

Conference_Location

Long Beach, CA, USA

Print_ISBN

1-55752-706-7

Type

conf

DOI

10.1109/CLEO.2002.1033969

Filename

1033969