Browsing by Author "CHANG, JT"

Now showing 1 - 2 of 2

MOIRE FRINGES BY 2 SPIRAL GRATINGS AND ITS APPLICATIONS ON COLLIMATION TESTS
(1995-08-01)
CHANG, CW
;
SU, DC
;
CHANG, JT
;
交大名義發表
;
光電工程學系
The characteristics of the moire fringes produced by the superposition of various kinds of spiral gratings are derived. According to the shapes of the resultant moire fringes, the moire fringes can be used for checking the collimation of a light beam. The resolution of each condition is discussed.
SUBSTRATE-MODE HOLOGRAPHIC POLARIZATION-DIVISION MULTI/DEMULTIPLEXER FOR OPTICAL COMMUNICATIONS
(1994-12-10)
CHANG, JT
;
SU, DC
;
HUANG, YT
;
電子工程學系及電子研究所
;
光電工程學系
Based on the diffractive properties of a transmission-type phase volume hologram, a new type of polarization-division multi/demultiplexer for optical communications is presented.