Title :
Photonic crystal surface-emitting lasers: tailoring waveguiding for single-mode emission
Author :
Unold, H.J. ; Golling, M. ; Michalzik, R. ; Supper, D. ; Ebeling, K.J.
Author_Institution :
Optoelectronics Dept., Ulm Univ., Germany
Abstract :
The concept of photonic crystal surface-emitting lasers (PCSELs) is introduced by etching a hexagonal pattern of small air holes into the top Bragg reflector of a conventional 980 nm-wavelength VCSEL structure. For certain current ranges, the resulting devices oscillate only on the fundamental transverse mode even for oxide aperture diameters up to 12 μm, yielding device resistances in the 50 Ω-regime.
Keywords :
crystals; etching; integrated optics; lithography; surface emitting lasers; 0.45 mW; 0.5 to 3.2 micron; 10 mA; 35 ohm; 50 ohm; 6 micron; 980 nm; Bragg reflector; PCSEL; VCSEL structure; contact lithography; device resistance; electro-optical characteristics; fundamental transverse mode; hexagonal pattern; hole diameter; hole pitch; oxide aperture diameter; photonic crystal surface-emitting lasers; single-mode emission waveguiding; Distributed Bragg reflectors; Etching; Fiber lasers; Laser modes; Laser stability; Optical surface waves; Photonic crystals; Surface emitting lasers; Surface waves; Vertical cavity surface emitting lasers;
Conference_Titel :
Optical Communication, 2001. ECOC '01. 27th European Conference on
Print_ISBN :
0-7803-6705-7
DOI :
10.1109/ECOC.2001.989088
