Coupling Of Index-Guided Lateral Modes In Three-Stripe Gain-Guided Laser Diode Arrays

Donald G. Heflinger; Wayne R. Fenner

doi:10.1117/12.976365

22 June 1989 Coupling Of Index-Guided Lateral Modes In Three-Stripe Gain-Guided Laser Diode Arrays

Donald G. Heflinger, Wayne R. Fenner

Proceedings Volume 1043, Laser Diode Technology and Applications; (1989) https://doi.org/10.1117/12.976365
Event: OE/LASE '89, 1989, Los Angeles, CA, United States

Abstract

Experimental results are presented which indicate the existence of index-guided lateral modes between stripes in multistripe laser diode arrays fabricated from planar double heterostructure material. Through a comparison to measurements made on twin-stripe arrays, each adjacent pair of stripes in a three-stripe array is observed to support index-guided modes. A comparison of the measured far-field intensity pattern with the calculated far-field diffraction pattern from the three-stripe array suggests that out-of-phase coupling between the two index-guided modes has been observed just above threshold, while at higher currents the two modes run independently. The presence of higher-order index-guided modes has also been observed as the current is increased. Measurements made on a commercially available ten-stripe laser also suggest the presence of index-guided lateral modes.

Citation Download Citation

Donald G. Heflinger and Wayne R. Fenner "Coupling Of Index-Guided Lateral Modes In Three-Stripe Gain-Guided Laser Diode Arrays", Proc. SPIE 1043, Laser Diode Technology and Applications, (22 June 1989); https://doi.org/10.1117/12.976365

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