Investigating Scaling Effects on The Static Characteristics of Long-Wavelength Vertical Cavity Lasers (VCSELs)
نویسندگان
چکیده
In this paper, the characteristics of longwavelength vertical-cavity surface-emitting laser (VCSEL) lasing at 1550 nm have been studied based on the influence of the oxide aperture radius. Using the oxide confined VCSEL model, we examine the static operations taking into account the carrier-noise, photon-noise and phase-noise including feedback of the external cavity. From the simulation, several important laser characteristics such as threshold gain, threshold current density and external quantum efficiency have been evaluated. Our results show that by scaling the oxide aperture radius, we are able to obtain an optimal oxide aperture radius in enhancing the VCSEL’s characteristics. Index Term-VCSEL, long-wavelength, InGaAsP, Quantum
منابع مشابه
Rapidly swept, ultra-widely-tunable 1060 nm MEMS-VCSELs.
Demonstrated are 1060 nm microelectromechanical-systems-based tunable vertical-cavity surface-emitting lasers (MEMS-VCSELs) with a 100 nm continuous tuning range under repetitively scanned operation at rates beyond 500 kHz and a 90 nm continuous tuning range under static operation. These devices employ a thin strained InGaAs multiple quantum well active region integrated with a fully oxidised G...
متن کاملCavity Solitons in Driven VCSELs above Threshold
CSs have been theoretically predicted and recently experimentally demonstrated in broad area, vertical cavity driven semiconductor lasers (VCSELs) slightly below the lasing threshold. Above threshold, the simple adiabatic elimination of the polarization variable is not correct, leading to oscillatory instabilities with a spuriously high critical wave-number. To achieve real insight on the compl...
متن کاملWafer bonded 1.55 mm vertical-cavity lasers with continuous-wave operation up to 105°C
Vertical cavity surface emitting lasers ~VCSELs! emitting in the 1.55 mm wavelength region are attractive sources for optical networks. Advantages of VCSELs include low power consumption, efficient fiber coupling, and high volume, low cost manufacturing. Transmission at 1.55 mm allows for long distance transmission over optical fiber with low attenuation and dispersion. The main limitation to r...
متن کاملCW threshold characteristics of Coupled-Cavity VCSELs: experiment and model
We carry out a detailed characterization of CW threshold behaviour of Coupled-Cavity VCSELs with various radii of the ion-implantation and oxide apertures. We obtain modal threshold current maps and wavelength at threshold and identify four groups of lasers with qualitatively different behavior, i. e. lasing only on the short, on the long or on both short and long wavelength fundamental modes. ...
متن کاملContinuous-Wave Characteristics of MEMS Atomic Clock VCSELs
Vertical-cavity surface-emitting lasers (VCSELs) emitting at 894.6 nm wavelength have been fabricated for Cs-based atomic clock applications. For polarization control, a previously developed technique relying on the integration of a semiconducting surface grating in the top Bragg mirror of the VCSEL structure is employed. More specifically, we use a socalled inverted grating. The VCSELs are pol...
متن کامل