Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Joseph E. Vornehm"'
Autor:
Aaron Schweinsberg, Joseph E. Vornehm, M. Alejandrina Martínez Gámez, Zhimin Shi, Robert W. Boyd
Publikováno v:
Physics Letters A. 374:4071-4074
We demonstrate a single optical timing module that can provide both tunable delay and advancement with low distortion using a reconfigurable gain medium based on stimulated Brillouin scattering. Dual-stage intensity modulation method is used to achie
Publikováno v:
Optics express. 22(21)
We describe a multivariate optical computer that can implement multiple spectral filters simultaneously. By parallel detection of multiple outputs, our proposed approach is capable of identifying more than two spectra simultaneously, and therefore co
Publikováno v:
Optics express. 21(11)
Phase control is crucial to the operation of coherent beam combining systems, whether for laser radar or high-power beam combining. We have recently demonstrated a design for a multi-aperture, coherently combined, synchronized- and phased-array slow
Autor:
Edwin Ma, Zhimin Shi, Israel De Leon, Joseph E. Vornehm, Gisela Lopez-Galmiche, Robert W. Boyd, Sangeeta Murugkar, Andreas C. Liapis, Jeff Z. Salvail, Boshen Gao
Publikováno v:
SPIE Proceedings.
We discuss the design and development of a slow-light spectrometer on a chip with the particular example of an arrayed waveguide grating based spectrometer. We investigate designs for slow-light elements based on photonic crystal waveguides and grati
Publikováno v:
Optics letters. 37(3)
We propose a multi-aperture slow-light laser radar with two-dimensional scanning. We demonstrate experimentally that we can use two independent slow-light mechanisms, namely dispersive delay and stimulated Brillouin scattering, to dynamically compens
Publikováno v:
Asia Communications and Photonics Conference.
We introduce the concept of multi-aperture slow-light laser radar (SLIDAR). Using two independent fiber-based techniques to control the group delay together with optical phase locking, we demonstrate experimentally a proof-of-principle system which i
Publikováno v:
Advanced Photonics.
A stimulated Brillouin scattering (SBS) slow light system in a 2.2-km single-mode fiber was phase locked to a reference signal. Optical pulses of 6.5 ns duration were delayed 0.9 pulse width while maintaining lock.
Publikováno v:
Frontiers in Optics 2011/Laser Science XXVII.
We propose a programmable system for optical spectrum recognition using a diffraction grating, a phase-only spatial light modulator (SLM), and two detector elements.
Publikováno v:
Advanced Photonics.
We demonstrate a proof-of-concept system for steering a coherently-combined multi-aperture slow-light laser radar. Each aperture incorporates slow-light elements, using dispersive delay and SBS, to ensure power overlap at the target.
Publikováno v:
Frontiers in Optics 2010/Laser Science XXVI.
We propose a multi-aperture slow-light laser radar (SLIDAR) and demonstrate a proof-of-concept system. Two slow-light mechanisms are demonstrated to control the relative group delay among various apertures while the relative phases among apertures re