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Programmable spectral design and the...

Levner, Daniel.

Programmable spectral design and the binary supergrating.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Programmable spectral design and the binary supergrating.
作者:	Levner, Daniel.
面頁冊數:	192 p.
附註:	Adviser: David A. B. Miller.
附註:	Source: Dissertation Abstracts International, Volume: 67-05, Section: B, page: 2747.
Contained By:	Dissertation Abstracts International67-05B.
標題:	Engineering, Electronics and Electrical.
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3219322
ISBN:	9780542707575

Programmable spectral design and the binary supergrating.
Levner, Daniel.

Programmable spectral design and the binary supergrating. - 192 p.

Adviser: David A. B. Miller.

Thesis (Ph.D.)--Stanford University, 2006.

As a digital approach to spectral engineering, the BSG presents many of the same advantages offered by the digital approach to electronic signal processing (DSP) over its analog predecessors. As such, it has potential importance for many domains of optical manipulation. This is especially the case when the BSG incorporates reprogrammable means of actuation. The reprogrammable form, which stands as a universal wavelength processor, promises unique benefits to dynamic optical systems.

ISBN: 9780542707575Subjects--Topical Terms:

226981
Engineering, Electronics and Electrical.

Programmable spectral design and the binary supergrating.
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502 $a Thesis (Ph.D.)--Stanford University, 2006.
520 # $a As a digital approach to spectral engineering, the BSG presents many of the same advantages offered by the digital approach to electronic signal processing (DSP) over its analog predecessors. As such, it has potential importance for many domains of optical manipulation. This is especially the case when the BSG incorporates reprogrammable means of actuation. The reprogrammable form, which stands as a universal wavelength processor, promises unique benefits to dynamic optical systems.
520 # $a Here, I present the Binary Supergrating (BSG), a novel technology that permits the programmable and near-arbitrary control of optical amplitude and phase using a simple, robust and practical form. This guided-wave form consists of an aperiodic sequence of binary elements; the sequence, determined through the process of BSG synthesis, encodes an optical program that defines device functionality.
520 # $a Spectral operations such as wavelength selection, power level manipulation, and chromatic dispersion control are key to many processes in optical telecommunication, spectroscopy, and sensing. In their simplest forms, these functions can be performed using a number of successful devices such as the Fraunhofer ("diffraction") grating, Bragg grating, thin-film filter (TFF), and dispersion-compensating fiber (DCF). More complicated manipulations, however, often require either problematic cascades of many simple elements, the use of custom technologies that offer little adjustment, or the implementation of fully programmable devices, which allow for the desired spectral function to be synthesized ab initio.
520 # $a The ability to derive optical programs that address broad spectral demands is central to the BSG's extensive capabilities. In consequence, I present a powerful approach to synthesis that exploits existing knowledge in the design of "analog" gratings. This approach is based on a two-step process, which first derives an analog diffractive structure using the best available methods and then transforms it into binary form. Accordingly, I discuss the notion of diffractive structure transformation and introduce the principle of key information. I identify such key information and illustrate its application in grating quantizers based on an atypical form of Delta-Sigma modulation.
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