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Objective: Photoacoustic (PA) imaging emerges as a unique tool to study biological samples based on optical absorption contrast. In PA imaging, piezoelectric transducers are commonly used to detect laser-induced ultrasonic waves. However, they typically lack adequate broadband sensitivity at ultrasonic frequency higher than 100 MHz, whereas their bulky size and optically opaque nature cause technical...
SDN brings automation to network operation and abstracts the complexity of optical networks. An orchestration layer is required to support multivendor interoperability scenarios. This work demonstrates that an ABNO architecture enables SDN controlled domain interoperability.
We present the need for new ultrasonic detectors in photoacoustic microscopy and report on the development of a cover-slip type, optically transparent, all-optical ultrasonic detector based on a polymeric micro-ring resonator for various photoacoustic applications.
Low-cost optical switches based on SLMs have conventionally been considered unsuitable for packet switching due to slow reconfiguration time. In this paper, we demonstrate that the constraint of SLM reconfiguration time in a hybrid three-stage electronic/optical switching node architecture can be compensated through the utilization of MPLS label switching mechanism to achieve the best performance...
A scheme to simultaneously realize UWB monocycle pulse generation and frequency up-conversion using FWM effect in a 60-meter HNL-PCF is experimentally demonstrated. Two baseband and two frequency up-converted signals are obtained for UWB-over-fiber systems.
The refractive index sensor for use of a stress MLPG in a side-hole singlemode fiber is proposed. The principle of operation is based on using of a long-period grating that is made by pressing a plate with periodic grooves against a short length of side-hole fiber. The resonance wavelengths are shifted as the two side-holes of the fiber core were filled with the different the refractive index liquids...
Reconfigurable shutter-based free-space optical switching technologies using fiber ribbon and multiple wavelengths per fiber for storage area networks (SANs) application are presented and demonstrated.
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