NUMERICAL ANALYSIS OF STRONGLY INJECTION-LOCKED WHISTLE-GEOMETRY SEMICONDUCTOR RING LASERS FOR LOW-ENERGY HIGH-SPEED DATA READOUT
Abstract
Numerical Analysis of Strongly Injection-Locked Whistle-Geometry Semiconductor Ring Lasers for Low-Energy High-Speed Data Readout PI: Prof. Marek Osi?ski, Center for High Technology Materials, University of New Mexico Publicly Releasable Project SUMMARY High-speed low-power superconducting rapid single flux quantum (RSFQ) digital circuit technology offers significant advantages over the currently dominant CMOS digital technology (that consumes too much power) for a wide range of applications, ranging from digital radio frequency receivers to high-end computing. The ultra-low power dissipation of RSFQ electronic circuits is of critical importance for many specific cryogenic applications, such as readouts of cryogenic sensor arrays and peripheral circuits for superconducting quantum bits. Future very large scale integration (VLSI) technologies will require even lower power and higher energy efficiency than is currently achievable in standard RSFQ circuits. Part of the problem is maximizing the energy efficiency of the data link used to transfer data between cryogenic sensors and nominally room-temperature signal processors. Optical data links have the obvious advantage of much lower heat conductivity of the fiber compared to conventional metal wire links. Based on excellent predicted high-speed performance of whistle-geometry semiconductor ring lasers (WRLs), we will simulate the performance of low-power cryogenic optical data links based on WRLs driven by superconducting digital logic signals and operating at various temperatures, from room-temperature down to 4 K. The required stable single-frequency master laser could be incorporated either inside (monolithically and efficiently coupled to the WRL) or outside of the cryogenic environment. The detailed numerical simulations will focus on WRL dynamics under both optical injection and very short, pulsed-current excitation. The results will reveal any possible limitations to the data transmission rate and will determine the optimal operating conditions. Minimization of the total heat dissipation without distortion of the output optical signal will be an important metric.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 12, 2016
- Source ID
- N000141512190
Entities
People
- Marek Osinski
Organizations
- Office of Naval Research
- United States Navy
- University of New Mexico