A broad-area flared amplifier is fabricated that produces 5-W continuous-wave (CW) at 972 nm in a single-lobed, diffraction-limited far-field pattern. A high-power, tunable diode laser is used as the injection source. An incident power of only 90-120 mW is required to saturate the gain of the amplifier.
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O’Brien et al. (1997) studied this question.
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