1.55-μm mode-locked quantum-dot lasers with 300 MHz frequency tuning range

Journal Article · Mon Jan 19 00:00:00 EST 2015 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4906451· OSTI ID:22415121

Arsenijević, D.; Bimberg, D. ^[1]; Franke, D.; Kreissl, J.; Künzel, H. ^[2]

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1. Institut für Festkörperphysik, Technische Universität Berlin, 10623 Berlin (Germany)
2. Heinrich-Hertz-Institut, Einsteinufer 37, 10587 Berlin (Germany)

Passive mode-locking of two-section quantum-dot mode-locked lasers grown by metalorganic vapor phase epitaxy on InP is reported. 1250-μm long lasers exhibit a wide tuning range of 300 MHz around the fundamental mode-locking frequency of 33.48 GHz. The frequency tuning is achieved by varying the reverse bias of the saturable absorber from 0 to −2.2 V and the gain section current from 90 to 280 mA. 3 dB optical spectra width of 6–7 nm leads to ex-facet optical pulses with full-width half-maximum down to 3.7 ps. Single-section quantum-dot mode-locked lasers show 0.8 ps broad optical pulses after external fiber-based compression. Injection current tuning from 70 to 300 mA leads to 30 MHz frequency tuning.

• OSTI ID: 22415121
• Journal Information: Applied Physics Letters, Vol. 106, Issue 3; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
GHZ RANGE 01-100
INDIUM PHOSPHIDES
MHZ RANGE 100-1000
MODE LOCKING
PULSES
QUANTUM DOTS
SEMICONDUCTOR LASERS
VAPOR PHASE EPITAXY