Directly-modulated vertical-cavity surface-emitting lasers (VCSELs) are commonly used in short-reach optical interconnect applications. In order to enable efficient optical interconnect transceiver systems operating at data rates in excess of 20Gb/s, cosimulation environments which allow for the optimization of driver circuitry with accurate compact VCSEL models are necessary. This paper presen...

A thermo-electric 3-D analysis of 980 nm vertical cavity surface emitting laser (VCSEL) arrays based on thefinite elementmethod (FEM) is presented in this paper. High performanceVCSEL array structureswith square mesas are modeled by applying a steady-state 3-D heat dissipation model. Several oxide aperture diameters (Da), substrate thicknesses, current densities, array sizes, heat flux, and tem...

High-quality InAlGaAs digital-alloy active regions using submonolayer superlattices were developed and employed in a 3-stage bipolar cascade multiple-active-region vertical cavity surface emitting laser (VCSEL) design. The photoluminescence intensity and linewidth of these active regions were optimized by varying the substrate temperature and digitization period. These active regions exhibit co...

We report on the performance of the first table-top prototype atomic clock based on coherent population trapping (CPT) resonances with parallel linearly polarized optical fields (lin lin configuration). Our apparatus uses a vertical-cavity surface-emitting laser (VCSEL) tuned to the D1 line of Rb with the current modulation at the Rb hyperfine frequency. We demonstrate cancellation of the first...

In this paper we report on full C-band tunable, 10 Gbit/s capability, directly modulated micro-electromechanical system (MEMS) vertical-cavity surface-emitting laser (VCSEL) for next generation converged mobile fronthaul and backhaul applications, where the MEMS-VCSEL is used at the remote side of a wavelength routed WDM-PON system. To be compliant with the current ITU-T G.metro standardization...

We report the design of a monolithic piezoelectrically actuated microelectromechanical tunable vertical-cavity surface-emitting laser (VCSEL). The main advantages of piezoelectric actuation compared with conventional capacitive techniques are improved wavelength control, reduced external and tilt losses, and lower power supply voltages. The details of the piezoelectric actuation scheme for a 98...

The FAST-Net (Free-space Accelerator for Switching Terabit Networks) concept uses an array of wide-field-of-view imaging lenses to realize a high-density shuffle interconnect pattern across an array of smart-pixel integrated circuits. To simplify the optics we evaluated the efficiency gained in replacing spherical surfaces with aspherical surfaces by exploiting the large disparity between narro...

In this paper, the influence of variable polarization angle (θp) of optical feedback (OF) on the polarization properties of a vertical-cavity surface-emitting lasers (VCSELs) is investigated experimentally. Parallel polarization optical feedback (PPOF) and orthogonal polarization optical feedback (OPOF) are employed, where the polarization light is re-injected back into the laser. For the PPOF ...

The paper presents the results of experimental study an application phenomenon vibrational resonance (VR) for enhancement response a bistable vertical-cavity surface-emitting laser (VCSEL) to effect optical modulating signals. Specifically, two different cases were investigated: (a) control all-optical switching caused by modulated orthogonal injection from another VCSEL and (b) amplification a...

In this paper we show that the recently developed nanostructured gradient index (nGRIN) rod microlens can be utilised for the collimation of the beam generated by a vertical-cavity surface-emitting laser (VCSEL). The modelling of the nanostructured lens structure is performed using the finite difference time domain (FDTD) method with realistic nGRIN parameters and a Gaussian model of the light ...