Distributed feedback 3.27 µm diode lasers with continuous-wave output power above 15 mW at room temperature
GaSb-based type-I quantum well laterally coupled distributed feedback diode lasers emitting in the methane absorption band near 3.27 µm were designed and fabricated. The first-order index grating with a period of 480 nm was defined by e-beam lithography and etched on both sides of 6 µm-wide shallow...
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Veröffentlicht in: | Electronics letters 2014-09, Vol.50 (19), p.1378-1380 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | GaSb-based type-I quantum well laterally coupled distributed feedback diode lasers emitting in the methane absorption band near 3.27 µm were designed and fabricated. The first-order index grating with a period of 480 nm was defined by e-beam lithography and etched on both sides of 6 µm-wide shallow ridge waveguide. Coated 2 mm-long devices demonstrated stable continuous-wave single-frequency operation in a wide temperature range with an output power of 15 mW at +17°C and 40 mW at −20°C. The Bragg wavelength temperature tuning rate was ∼0.27 nm/K. |
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ISSN: | 0013-5194 1350-911X 1350-911X |
DOI: | 10.1049/el.2014.2733 |