Chirped arrays of diode lasers for supermode control

Journal Article · Wed Aug 01 04:00:00 EDT 1984 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.95209· OSTI ID:6672123

Kapon, E; Lindsey, C; Katz, J; Margalit, S; Yariv, A

We propose nonuniform structures of phase-locked diode lasers, which make it possible to discriminate efficiently against all the higher order array supermodes (lateral modes). In these nonuniform arrays, the effective mode index in each channel varies across the array. Consequently, the envelopes of the various supermodes, including the highest order one, differ significantly from each other. Thus, by proper tailoring of the gain distribution across the array, one can conveniently select the fundamental supermode. Such fundamental supermode oscillation is essential in order to obtain single lobe, diffraction limited beams and minimal spectral spread from phase-locked laser arrays.

• Research Organization: California Institute of Technology, Pasadena, California 91125
• OSTI ID: 6672123
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 45:3; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
DESIGN
EIGENFREQUENCY
FREQUENCY MODULATION
GAIN
LASERS
MODE LOCKING
MODULATION
OPTICAL MODES
OSCILLATION MODES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR LASERS
WAVEGUIDES