This paper presents a novel high-efficiency surface-emitting laser emitting at 1550nm (long-wavelength). This laser is based on the grating structure, and it retains the advantages of edge-emitting lasers while realizing the surface-emitting through a high contrast grating which can be fabricated by ordinary photolithography and etching. This novel surfaceemitting laser has two resonant cavities. One laser resonator is formed by the first-order grating which can provide feedback in the longitudinal direction and fulfill the longitudinal oscillation build-up; the other one is formed by the sixth-order grating in the vertical direction and acts as a light output coupler. The surface-emitting efficiencies of the novel proposed laser increased a lot by forming a laser resonator in the vertical direction. Besides, the grating period of sixth-order grating is longer than traditional first-order grating. A grating period over 1000nm as well as no regrowth is a key prerequisite for simple fabrication. The laser mode properties were analyzed by the traveling-wave model and the Finite-Difference TimeDomain (FDTD) solution. The surface-emitting properties were analyzed by the famous Green’s Function analysis. Simulation results show that a single-mode operation with a linear output power of 20 mW and a high external surfaceemitting efficiency of 45% can be achieved using this novel design.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.