skip to main content

Title: Beam steering via resonance detuning in coherently coupled vertical cavity laser arrays

Coherently coupled vertical-cavity surface-emitting laser arrays offer unique advantages for nonmechanical beam steering applications. We have applied dynamic coupled mode theory to show that the observed temporal phase shift between vertical-cavity surface-emitting array elements is caused by the detuning of their resonant wavelengths. Hence, a complete theoretical connection between the differential current injection into array elements and the beam steering direction has been established. It is found to be a fundamentally unique beam-steering mechanism with distinct advantages in efficiency, compactness, speed, and phase-sensitivity to current.
Authors:
; ; ;  [1]
  1. Department of Electrical and Computer Engineering University of Illinois, Urbana, Illinois 61820 (United States)
Publication Date:
OSTI Identifier:
22254052
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 20; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; BEAMS; CURRENTS; LASERS; PHASE SHIFT; SENSITIVITY; SURFACES; WAVELENGTHS