Supermode discrimination in diffraction-coupled laser arrays with separate contacts

Journal Article · Mon Aug 31 04:00:00 EDT 1987 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.98369· OSTI ID:6362769

Wilcox, J Z; Jansen, M; Yang, J; Peterson, G; Silver, A; Simmons, W; Ou, S S; Sergant, M

We show that in-phase lasing is favored in diffraction-coupled arrays with separate electrical contacts for the common unguided diffraction zone and for the waveguide section, if the common unguided section is biased above a critical level. Below that level, out-of-phase lasing will be favored. By varying the current about the critical level, the far-field intensity switches from a wide far-field pattern characterized by the admixture of several supermodes, to a near-diffraction-limited single peak.

• Research Organization: TRW, One Space Park, Redondo Beach, California 90278
• OSTI ID: 6362769
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 51:9; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
COHERENT SCATTERING
COUPLING
DIFFRACTION
EIGENVALUES
ELECTRIC CONTACTS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC RADIATION
EMISSION
ENERGY-LEVEL TRANSITIONS
EQUIPMENT
LASER RADIATION
LASERS
PHOTON EMISSION
RADIATIONS
SCATTERING
STIMULATED EMISSION
SUPERRADIANCE
WAVEGUIDES