Analysis of hybrid photonic crystal vertical cavity surface emitting lasers

Abstract

Vertical resonators with a top mirror constituted of 1D photonic crystal membrane on top of a Bragg stack are investigated in this paper. These structures allow the fabrication of compact vertical-cavity surfaceemitting lasers, which can be designed, in addition, for in-plane emission. With this hybrid approach, fabrication problems related to both classical VCSEL and Photonic Crystal lasers may be significantly relaxed, given that a full Bragg stack is replaced by a single photonic crystal membrane and that the Photonic Crystal is not formed in the active gain layer.

New Design of All-Optical Slow Light TDM Structure Based on Photonic Crystals

“…Photonic crystal waveguide (PCW) application with slow light properties have been widely discussed [16][17][18][19][20][21][22][23][24][25][26] in the recent years. Slow light becomes possible to control the speed of light and can be applied to a great variety of applications, such as delay lines that control the arrival of optical signals and optical buffers.…”

Ultracompact resonator with high quality-factor based on a hybrid grating structure

“…HCGs can provide extraordinary properties that have not been reported for conventional diffractive gratings with similar periodicity, including high reflectivity > 99% over a broad bandwidth or high quality (Q) factor resonances (Q> 10 7 ). The broadband nature of the HCG has brought many novel features to vertical-cavity surface-emitting lasers (VCSELs) [2][3][4][5][6][7][8][9]. Also, HCG-resonator lasers with surface normal emission have been demonstrated, with properties of interest for sensing, communication, or display applications [10,11].…”

Tailoring the Properties of Photonic Nanojets by Changing the Material and Geometry of the Concentrator

“…In order to produce very tiny lasers, different techniques have been used in the past, such as total internal reflection in high refractive index contrast structures [1][2][3][4], photonic bandgap effect [5][6][7][8][9] and the excitation of plasmonic waves [10][11][12][13]. In general, high refractive index contrast lasers emit power in the range of microwatts to a few milliwatts, while photonic crystal lasers emit power in the range of picowatts to microwatts (in general, photonic crystal band-edge [7] and surface emitting lasers [9] emit significantly more power than single-defect lasers) and plasmonic lasers emit nanowatts optical power. If higher power is needed, bulk or fiber lasers [14,15] needs to be used to drive optical devices.…”