نتایج جستجو برای: optical device

تعداد نتایج: 906228  

1997
Michael S. Borella Jason P. Jue Dhritiman Banerjee Byrav Ramamurthy Biswanath Mukherjee MICHAEL S. BORELLA

Recently, there has been growing interest in developing optical ber networks to support the increasing bandwidth demands of multimedia applications, such as video conferencing and World Wide Web browsing. One technique for accessing the huge bandwidth available in an optical ber is wavelengthdivision multiplexing (WDM). Under WDM, the optical ber bandwidth is divided into a number of non-overla...

2013
Seongjae Cho Hyungjin Kim S. J. Ben Yoo Byung-Gook Park James S. Harris

Optical and electronic devices for optoelectronic integrated circuits have been extensively studied, and now, more efforts for the conversion between optical and electrical signals are accordingly required. In this work, a silicon (Si)-compatible optically drivable III-V-on-Si metal-oxide-semiconductor field-effect transistor (MOSFET) is studied by simulation. The proposed optoelectronic device...

Journal: :Optics letters 2007
Adam M Zysk Steven G Adie Julian J Armstrong Matthew S Leigh Alexandre Paduch David D Sampson Freddy T Nguyen Stephen A Boppart

We present a novel needle-based device for the measurement of refractive index and scattering using low-coherence interferometry. Coupled to the sample arm of an optical coherence tomography system, the device detects the scattering response of, and optical path length through, a sample residing in a fixed-width channel. We report use of the device to make near-infrared measurements of tissues ...

2016
Hossam Zoweil

A new design for an all optical flip flop is introduced. It is based on a nonlinear Distributed Bragg Reflector (DBR) semiconductor laser structure. The device does not require a holding beam. An optical gain medium confined between 2 Bragg reflectors forms the device. One of the Bragg reflectors is detuned from the other by making its average refractive index slightly higher, and it has a nega...

2015
Samrat Vikramaditya Tiwari Atul Sewaiwar Yeon-Ho Chung

Device-to-device (D2D) communication is considered a promising technique to provide wireless peer-to-peer communication services. Due to increasing demand on mobile services, available spectrum for radio frequency (RF) based communications becomes scarce. Recently, visible light communications (VLC) has evolved as a high speed wireless data transmission technology for indoor environments with a...

2005
Z. Li Y. Liu S. Zhang H. Ju H. de Waardt G. D. Khoe D. Lenstra

A novel all-optical logic device, composed of an SOA and an optical filter, is demonstrated for AND, OR and XOR gates at 10 Gb/s. Simulation indicates the device can operate at much higher bit rate.

2000
Rakesh BHANDARI

Optical-MSSW interaction has received wide interest for realization of thin film devices for optical signal processing at microwave signal frequency. In this paper, a device structure to obtain optical-MSSW interaction in a threedimensional optical waveguide using a multilayered garnet structure is proposed and analyzed. The multilayered structure enables optimization of the waveguide parameter...

Journal: :Optics letters 1997
X S Yao L Maleki

We describe and demonstrate a novel device in which a microwave oscillation and an optical oscillation are generated and directly coupled with each other. With the mutual influence between the microwave and the optical oscillations, we project that this device is capable of simultaneously generating stable optical pulses down to the subpicosecond level and spectrally pure microwave signals at f...

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