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Optical waveguide devices based on f...

Chen, Gang.

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Optical waveguide devices based on fiber Sagnac interferometers and photonic crystals.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Optical waveguide devices based on fiber Sagnac interferometers and photonic crystals./
作者:	Chen, Gang.
面頁冊數:	119 p.
附註:	Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2137.
Contained By:	Dissertation Abstracts International66-04B.
標題:	Physics, Optics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3172568
ISBN:	0542100746

Optical waveguide devices based on fiber Sagnac interferometers and photonic crystals.
Chen, Gang.

Optical waveguide devices based on fiber Sagnac interferometers and photonic crystals. - 119 p.

Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2137.

Thesis (Ph.D.)--The Johns Hopkins University, 2005.

The concept of guided lightwave devices has stimulated a new technology revolution over the last several decades with the advent of the fiber-optic communications area. In this dissertation, several novel waveguide devices based on either polarization maintaining fibers (PMFs) or photonic crystals (PhCs), which can enhance the performance of optical communications and sensors systems, are proposed and analyzed. The proposed devices are designed, theoretically analyzed and some of them are experimentally demonstrated to evaluate their performances.

ISBN: 0542100746Subjects--Topical Terms:

1018756
Physics, Optics.

Optical waveguide devices based on fiber Sagnac interferometers and photonic crystals.
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245 1 0 $a Optical waveguide devices based on fiber Sagnac interferometers and photonic crystals.
300 $a 119 p.
500 $a Source: Dissertation Abstracts International, Volume: 66-04, Section: B, page: 2137.
500 $a Adviser: Jin U. Kang.
502 $a Thesis (Ph.D.)--The Johns Hopkins University, 2005.
520 $a The concept of guided lightwave devices has stimulated a new technology revolution over the last several decades with the advent of the fiber-optic communications area. In this dissertation, several novel waveguide devices based on either polarization maintaining fibers (PMFs) or photonic crystals (PhCs), which can enhance the performance of optical communications and sensors systems, are proposed and analyzed. The proposed devices are designed, theoretically analyzed and some of them are experimentally demonstrated to evaluate their performances.
520 $a Sagnac interferometers are optical devices commonly used in optical sensing applications. Fiber Sagnac filters built with PMFs have unique characteristics and are capable of playing important roles in many optical applications. We propose novel fiber Sagnac-type filters such as a ring-assisted Sagnac filter and analyze their performances both theoretically and experimentally. We show that a ring-assisted Sagnac filter with an added intra-cavity fiber ring resonator can improve the linearity of the transfer function around the quadrature point. When this device is used as a frequency discriminator, a 4dB improvement in the dynamic range of an RF FM photonic link can be achieved.
520 $a Self phase modulation and cross phase modulation due to the optical Kerr effect can cause light waves to undergo nonlinear polarization rotations while traveling in the fibers forming the Sagnac loops. As a consequence, fiber Sagnac interferometers can exhibit nonlinear switching characteristics. We propose a double-loop Sagnac filter, which has one Sagnac filter embedded in another Sagnac filter. This device is shown to exhibit improved all-optical limiting and switching characteristics. The intensity dependent filtering property of this device is also discussed and analyzed.
520 $a Photonic crystals are periodic structures that process photonic band gaps. By introducing defects into the lattice, we can efficiently mold the flow of light. Based on this concept, a novel optical mode converter based on 2-D photonic crystal waveguides is proposed, which converts a TM0 mode converts into a TM2 mode without generating any other unwanted modes.
520 $a The final part of this work is devoted to a compact, low-cost Raman spectroscopy built with a frequency doubled Yb-doped fiber laser. Several samples are measured using the proto-type system and good results have been obtained.
590 $a School code: 0098.
650 4 $a Physics, Optics. $3 1018756
650 4 $a Engineering, Electronics and Electrical. $3 626636
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690 $a 0544
710 2 0 $a The Johns Hopkins University. $3 1017431
773 0 $t Dissertation Abstracts International $g 66-04B.
790 1 0 $a Kang, Jin U., $e advisor
790 $a 0098
791 $a Ph.D.
792 $a 2005
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3172568