Experimental confirmation of phase relationships of multimode interference splitters using a shearing-type near-field Sagnac interferometer

Author

Kareenahalli, S. ; Dagenais, M. ; Stone, Dennis ; Tayag, Tristan J.

Author_Institution

Dept. of Electr. Eng., Maryland Univ., College Park, MD, USA

Volume

9

Issue

7

fYear

1997

fDate

7/1/1997 12:00:00 AM

Firstpage

937

Lastpage

939

Abstract

We report, for the first time, the experimental confirmation of the phase relationships between the output images of 1/spl times/4 and 1/spl times/8 multimode interference (MMI) splitters. Interference data is obtained using a shearing type near-field Sagnac interferometer. A Fourier transform technique is used to extract the phase information of the splitter output images. Excellent agreement between the experimental results and the theoretical predictions is obtained, which indicates good phase performance of the device.

Keywords

Fourier transform optics; light interference; light interferometers; optical communication equipment; optical fabrication; optical testing; phase measurement; wavelength division multiplexing; Fourier transform technique; experimental confirmation; multimode interference splitters; output images; phase information extraction; phase relationships; shearing type near-field Sagnac interferometer; shearing-type near-field Sagnac interferometer; splitter output images; Couplers; Data mining; Fourier transforms; Interference; Laboratories; Optical device fabrication; Optical waveguides; Phase measurement; Sagnac interferometers; Shearing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/68.593357

Filename

593357