1 Department of Photonics Engineering, Technical University of Denmark2 Nanophotonic Devices, Department of Photonics Engineering, Technical University of Denmark3 Nanophotonics Theory and Signal Processing, Department of Photonics Engineering, Technical University of Denmark4 Department of Micro- and Nanotechnology, Technical University of Denmark5 Silicon Microtechnology, Department of Micro- and Nanotechnology, Technical University of Denmark6 Center for Individual Nanoparticle Functionality, Center, Technical University of Denmark7 Experimental Surface and Nanomaterials Physics, Department of Physics, Technical University of Denmark
We demonstrate how resonant excitation of a microelectro-mechanical system can be used to increase the tuning range of a vertical-cavity surface-emitting laser two-fold by enabling both blue- and red-shifting of the wavelength. In this way a short-cavity design enabling wide tuning range can be realized. A high-index-contrast subwavelength grating verticalcavity surface-emitting laser with a monolithically integrated anti-reflection coating is presented. By incorporating an antireflection coating into the air cavity, higher tuning efficiency can be achieved at low threshold current. The first result shows 24-nm continuous resonant tuning range around an emission wavelength of 1060 nm with 0.9 mW output power.
I E E E Journal on Selected Topics in Quantum Electronics, 2013, Vol 19, Issue 4