Highly sensitive optical-sampling system using a periodically poled lithium niobate crystal

Author

Nogiwa, S. ; Ohta, Hitoyoshi ; Chiba, Hidetoshi

Author_Institution

Dept. 3, TERATEC Corp. Res. & Dev., Tokyo, Japan

fYear

1999

fDate

28-28 May 1999

Firstpage

471

Lastpage

472

Abstract

Summary form only given. An optical sampling system using sum-frequency generation (SFG) can measure waveforms having high bit rate signals for optical communications. Such a system, however, requires a signal peak power of at least a few mW to achieve a 20-dB signal-to-noise ratio (SNR) because the conventional KTiOPO/sub 4/ (KTP) nonlinear optical crystal for SFG has low conversion efficiency. In this study, we measured the SNR of an optical sampling system that uses a periodically poled LiNbO/sub 3/ (PPLN) crystal, and observed the eye diagram of a 10-Gbit/s optical signal having less than I-mW peak power.

Keywords

dielectric polarisation; lithium compounds; optical fibre communication; optical frequency conversion; optical materials; sensitivity; signal sampling; 10 Gbit/s; Gbit/s optical signal; KTiOPO/sub 4/ nonlinear optical crystal; LiNbO/sub 3/; eye diagram; high bit rate signals; highly sensitive optical-sampling system; lithium niobate crystal; optical communications; periodically poled; signal peak power; signal-to-noise ratio; sum-frequency generation; Fiber nonlinear optics; Lithium niobate; Nonlinear optics; Optical pulses; Optical sensors; Power measurement; Pulse amplifiers; Pulse measurements; Sampling methods; Ultrafast optics;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 1999. CLEO '99. Summaries of Papers Presented at the Conference on

Conference_Location

Baltimore, MD, USA

Print_ISBN

1-55752-595-1

Type

conf

DOI

10.1109/CLEO.1999.834462

Filename

834462