東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Ultra narrow band filter optic Bragg...

Vann, Lelia Belle.

Linked to FindBook

Google Book

Amazon

博客來

Ultra narrow band filter optic Bragg grating filters for atmospheric water vapor measurements.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Ultra narrow band filter optic Bragg grating filters for atmospheric water vapor measurements./
Author:	Vann, Lelia Belle.
Description:	170 p.
Notes:	Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4993.
Contained By:	Dissertation Abstracts International64-10B.
Subject:	Physics, Atmospheric Science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3108963

Ultra narrow band filter optic Bragg grating filters for atmospheric water vapor measurements.
Vann, Lelia Belle.

Ultra narrow band filter optic Bragg grating filters for atmospheric water vapor measurements. - 170 p.

Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4993.

Thesis (Ph.D.)--The University of Arizona, 2003.

Optical fibers have revolutionized telecommunications. Much of the success of optical fiber lies in its near-ideal properties: low transmission loss, high optical damage threshold, and low optical nonlinearity. The photosensitivity of an optical fiber was accidentally discovered by Hill, et al. in 1978. However, the technological advances made in the field of photosensitive optical fibers are relatively recent. This fascinating technology of photosensitive fiber is based on the principle of a simple in-line all-fiber optical filter. It has been shown that the transmission spectrum of a fiber Bragg grating can be tailored by incorporating multiple phase-shift regions during the fabrication process. Phase shifts open up ultra narrowband transmission windows inside the stop band of the Bragg grating. As a specific application, this research is focused on applying this technology in future space-based water vapor DIfferential Absorption LIDAR (DIAL) systems to improve the performance of space-based LIDAR systems by rejecting the reflected solar background.Subjects--Topical Terms:

1019431
Physics, Atmospheric Science.

Ultra narrow band filter optic Bragg grating filters for atmospheric water vapor measurements.
LDR:03272nmm 2200277 4500 001 1864478
005 20041216132049.5
008 130614s2003 eng d
035 $a (UnM)AAI3108963
035 $a AAI3108963
040 $a UnM $c UnM
100 1 $a Vann, Lelia Belle. $3 1951969
245 1 0 $a Ultra narrow band filter optic Bragg grating filters for atmospheric water vapor measurements.
300 $a 170 p.
500 $a Source: Dissertation Abstracts International, Volume: 64-10, Section: B, page: 4993.
500 $a Director: Benjamin M. Herman.
502 $a Thesis (Ph.D.)--The University of Arizona, 2003.
520 $a Optical fibers have revolutionized telecommunications. Much of the success of optical fiber lies in its near-ideal properties: low transmission loss, high optical damage threshold, and low optical nonlinearity. The photosensitivity of an optical fiber was accidentally discovered by Hill, et al. in 1978. However, the technological advances made in the field of photosensitive optical fibers are relatively recent. This fascinating technology of photosensitive fiber is based on the principle of a simple in-line all-fiber optical filter. It has been shown that the transmission spectrum of a fiber Bragg grating can be tailored by incorporating multiple phase-shift regions during the fabrication process. Phase shifts open up ultra narrowband transmission windows inside the stop band of the Bragg grating. As a specific application, this research is focused on applying this technology in future space-based water vapor DIfferential Absorption LIDAR (DIAL) systems to improve the performance of space-based LIDAR systems by rejecting the reflected solar background.
520 $a The primary goal of this research effort was to demonstrate the feasibility of using ultra narrow band fiber optic Bragg grating filters for atmospheric water vapor measurements. Fiber Bragg gratings were fabricated such that two transmission filter peaks occurred and were tunable, one peak at a 946 nm water vapor absorption line and another peak at a region of no absorption. Both transmission peaks were in the middle of a 2.66-nm stop band. Experimental demonstration of both pressure and temperature tuning was achieved and characterization of the performance of several custom-made optical fiber Bragg grating filters was made. To our knowledge these are the first optical fiber gratings made in this frequency range and for this application. The bandwidth and efficiency of these filters were measured and then these measurements were compared with theoretical calculations using a piecewise matrix form of the coupled-mode equation. Finally, an ultra narrow band water vapor DIAL filter was characterized having two pass bands less than 8 pm and peak transmissions greater than 80 percent. Such fiber optic filters are now ready for integrating into space-based water vapor LIDAR systems. More broadly, these filters have the characteristics that will revolutionized satellite remote-sensing.
590 $a School code: 0009.
650 4 $a Physics, Atmospheric Science. $3 1019431
650 4 $a Physics, Optics. $3 1018756
690 $a 0608
690 $a 0752
710 2 0 $a The University of Arizona. $3 1017508
773 0 $t Dissertation Abstracts International $g 64-10B.
790 1 0 $a Herman, Benjamin M., $e advisor
790 $a 0009
791 $a Ph.D.
792 $a 2003
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=3108963