Modes of a two-dimensional phase-locked array of vertical-cavity surface-emitting lasers
- Division 1164, Sandia National Laboratories, Albuquerque, New Mexico 87185 (US)
A simple formalism is reported for studying the modes of an infinite two-dimensional (2-D) phase-locked array of vertical-cavity surface-emitting diode lasers. In this approach, the Helmholtz equation is approximately separated into products of solutions of the associated one-dimensional (linear) arrays. This formalism allows the knowledge gained from years of research into the modal properties of linear diode arrays to be applied directly to 2-D arrays. As a result, it is expected that both 2-D gain-guided and index-guided arrays (except those with excess gain in the low-index channels) will lase in the high-order mode characterized by emission into four distinct off-axis far-field lobes. In contrast, it is expected that properly constructed 2-D leaky-mode arrays would lase preferentially in the fundamental mode well above threshold.
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6186034
- Journal Information:
- Optics Letters; (USA), Journal Name: Optics Letters; (USA) Vol. 15:21; ISSN OPLED; ISSN 0146-9592
- Country of Publication:
- United States
- Language:
- English
Similar Records
Coupled-mode analysis of gain and wavelength oscillation characteristics of diode laser phased arrays
Two-dimensional waveguide modeling of leaky-mode arrays