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Injection behavior and modeling of 100-mW broad-area diode lasers

Technical Report ·
OSTI ID:6884084

The output from a single-frequency, narrow-linewidth GaAlAs diode laser was injected into a 100-mW broad-area diode laser. The injected broad-area laser emitted in a single longitudinal mode with up to 80 mW in a single, diffraction-limited, 0.5-FWHM far-field lobe. The angle of the far-field lobe steered with injection frequency and broad-area laser-bias current, displaying behavior similar to that observed with injected gain-guided laser arrays. A Fabry-Perot amplifier model is proposed, which explains the injection behavior in terms of Gaussian beam propagation in a large optical cavity. The model provides criteria for optimizing locking bandwidth, beam steering, and injection efficiency.

Research Organization:
Massachusetts Inst. of Tech., Lexington (USA). Lincoln Lab.
OSTI ID:
6884084
Report Number(s):
AD-A-198117/4/XAB; JA-6004
Country of Publication:
United States
Language:
English