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A single-mode diode laser is injected into a high-power broad-area diode laser to produce single-mode operation with 80 mW in a 0.50 degrees-wide far-field lobe. Spectrally resolved near- and far-field measurements suggest a simple Fabry-Perot amplifier model that qualitatively explains the observed injection and beam-steering behavior in these devices as well as gain-guided multiple-stripe arrays. This model provides criteria for the optimization of injection performance.
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Abbas et al. (1987) studied this question.
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