0° phase mode operation in phased-array laser diode with symmetrically branching waveguide
- 15 August 1985
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 47 (4) , 341-343
- https://doi.org/10.1063/1.96157
Abstract
An AlGaAs phased-array laser with a novel index waveguide structure like the letter ‘‘Y’’ is described. In all arrays with such a structure, controllable selection of only 0° phase mode and complete suppression of 180° phase shift mode is achieved up to ∼65 mW in 2%–96% coated devices. The far-field patterns, near-field patterns, and spectra of the array are in good agreement with the theoretical results. The cw threshold currents are ∼100 mA, and the external differential quantum efficiencies are 57% per facet.Keywords
This publication has 9 references indexed in Scilit:
- Fundamental mode oscillation of a buried ridge waveguide laser arrayApplied Physics Letters, 1984
- Supermode analysis of phase-locked arrays of semiconductor lasersOptics Letters, 1984
- Schottky barrier restricted arrays of phase-coupled AlGaAs quantum well lasersApplied Physics Letters, 1984
- Coupled-mode analysis of phase-locked injection laser arraysApplied Physics Letters, 1984
- High-power phase-locked arrays of index-guided diode lasersApplied Physics Letters, 1983
- Coupled-wave theory regarding phase-locked-array lasersElectronics Letters, 1983
- Near-field and far-field patterns of phase-locked semiconductor laser arraysApplied Physics Letters, 1983
- Visible GaAlAs V-channeled substrate inner stripe laser with stabilized mode using p-GaAs substrateApplied Physics Letters, 1982
- GaAs-AlxGa1-xAs strip buried heterostructure lasersIEEE Journal of Quantum Electronics, 1979