| Autor: |
R Richard Nötzel, M.S. Tahvili, S Sanguan Anantathanasarn, Erwin Bente, MK Meint Smit, Martijn J. R. Heck |
| Rok vydání: |
2009 |
| Předmět: |
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| Zdroj: |
CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference. |
| DOI: |
10.1109/cleoe-eqec.2009.5191529 |
| Popis: |
In this paper we present the first observation of passive mode-locking in a quantum dot (QD) ring laser operating at wavelengths around 1.5 µm. The InAs/InP QD laser structure is grown on n-type (100) InP substrates by metal-organic vapor-phase epitaxy [1]. Lasers with a ring configuration are realized using the fabrication technology presented in [2]. The device consists of an 18-mm long (electrically pumped) ring cavity, corresponding to a 5-GHz roundtrip frequency. The ridge waveguide width is 2 µm. A saturable absorber (SA) section with a length of 300 µm is located in the cavity. The position of the SA in the ring is opposite to a directional coupler which couples 5% – 10% of the light to the output waveguides. The output waveguides end with angled facets that have been anti-reflection coated to suppress feedback into the cavity. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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