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The coherence of broad-area laser diodes with quantum dot gain medium is improved by frequency-selective feedback. A linewidth of 5-10 GHz at power levels of 10-140 mW is achieved in the wavelength region around 1240 nm, where no other good semiconductor lasers are available. The tuning range is at least 20 nm.
- semiconductor lasers
FingerprintDive into the research topics of 'Tunable, narrow-band light source in the 1.25 mu m region based on broad-area quantum dot lasers with feedback'. Together they form a unique fingerprint.
- 1 Finished
1/01/07 → 30/06/10