Hybrid distributed Bragg reflector laser on Si with a transfer printed InAs/GaAs quantum dot amplifier

Author:

Morais Natalia,Fujikata Junichi1ORCID,Kwoen JinkwanORCID,Nakamura Takahiro1,Ota Yasutomo2ORCID,Arakawa YasuhikoORCID

Affiliation:

1. Photonics and Electronics Convergence Technology Research Association

2. Keio University

Abstract

We demonstrate a hybrid integrated laser by transfer printing an InAs/GaAs quantum dot (QD) amplifier on a Si waveguide with distributed Bragg reflectors (DBRs). The QD waveguide amplifier of 1.6 mm long was patterned in the form of an airbridge with the help of a spin-on-glass sacrificial layer and precisely integrated on the silicon-on-insulator (SOI) waveguide by pick-and-place assembly using an elastomer stamp. Laser oscillation was observed around the wavelength of 1250 nm with a threshold current of 47 mA at room temperature and stable operation up to 80°C. Transfer printing of the long QD amplifiers will enable the development of various hybrid integrated laser devices that leverage superior properties of QDs as laser gain medium.

Funder

New Energy and Industrial Technology Development Organization

Publisher

Optica Publishing Group

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