Far-field supermode patterns of a multiple-stripe quantum well heterostructure laser operated (approx. 7330 A, 300 K) in an external grating cavity

Journal Article · Wed Aug 15 00:00:00 EDT 1984 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.95237· OSTI ID:6610715

Epler, J E; Burnham, R D; Paoli, T L; Streifer, W

A multiple-stripe quantum well heterostructure laser diode operated in an external grating cavity is shown to exhibit the far-field radiation patterns of the ''supermode'' eigenstates predicted by coupled mode analysis. Data (approx.7330 A) are presented on a gain-guided laser array at various continuous (cw, 300 K) operating currents to illustrate the progression of the supermodes from double-lobed patterns (phase shift between emitters) to a single-lobed pattern (no phase shift between emitters). As the cavity wavelength is scanned a cyclical progression (2.8-A period) of far-field patterns (supermodes) is observed.

• Research Organization: Electrical Engineering Research Laboratory and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• OSTI ID: 6610715
• Journal Information: Appl. Phys. Lett.; (United States), Vol. 45:4
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
LASERS
EIGENSTATES
OPERATION
OSCILLATION MODES
COUPLING
GRATINGS
HETEROJUNCTIONS
LASER CAVITIES
MEDIUM TEMPERATURE
NEAR INFRARED RADIATION
POTENTIALS
ELECTROMAGNETIC RADIATION
INFRARED RADIATION
JUNCTIONS
RADIATIONS
SEMICONDUCTOR JUNCTIONS
420300* - Engineering- Lasers- (-1989)