Measurement of nonlinear refractive index of optical fiber using Sagnac interferometer

Author

Jeong, Ho Jin ; Hankyo Seo ; Lee, Young Tark ; Kim, Wmnha ; Shin, Keysoo ; Jeong, Kitae

Author_Institution

Access Network Lab., Korea Telecom, Taejeon, South Korea

Volume

2

fYear

1999

fDate

18-22 Oct. 1999

Firstpage

1390

Abstract

The phase shift induced by cross phase modulation is measured using a Sagnac interferometer. The CW pumping beam less than 10 mW is intensity modulated with frequency f/sub 1/, and the interferometer is phase modulated with frequency f/sub 2/ different from f/sub 1/. In the RF spectrum of the Sagnac interferometer signal, a component of frequency f/sub 1/+f/sub 2/ is proportional to the optical nonlinear effect.

Keywords

frequency modulation; intensity modulation; light interferometry; optical fibre testing; optical modulation; phase modulation; refractive index measurement; 10 mW; CW pumping beam; RF spectrum; Sagnac interferometer; cross phase modulation; frequency component; frequency modulation; intensity modulation; interferometer; nonlinear refractive index; optical fiber; optical nonlinear effect; phase modulation; phase shift; Frequency modulation; Intensity modulation; Laser excitation; Optical fibers; Optical interferometry; Optical modulation; Phase measurement; Phase modulation; Refractive index; Sagnac interferometers;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 1999. APCC/OECC '99. Fifth Asia-Pacific Conference on ... and Fourth Optoelectronics and Communications Conference

Conference_Location

Beijing, China

Print_ISBN

7-5635-0402-8

Type

conf

DOI

10.1109/APCC.1999.820530

Filename

820530