Effect of photodetector on the noise conversion of the optical pulse train generated from mode-locked lasers

Author

Wu, Kan ; Shum, Perry Ping

Author_Institution

Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore

fYear

2010

fDate

14-16 Dec. 2010

Firstpage

1

Lastpage

3

Abstract

Noise conversion from relative intensity noise (RIN) to phase noise in the photodetection process of an optical pulse train is characterized by pump modulation method. It is found that the conversion ratio from RIN to phase noise is not sensitive to the noise power or the incident optical power, but decreases at a rate of 1/f with the increase of noise frequency. A new parameter related to the RF power difference of noise spurs is proposed and provides an easy way to describe the strength of the correlation between RIN and phase noise with no need of measuring the noise spectra of RIN and phase noise.

Keywords

laser mode locking; laser noise; optical modulation; optical pulse generation; optical pumping; phase noise; photodetectors; RF power difference; mode-locked lasers; noise conversion; noise spectra; optical pulse train; phase noise; photodetector; pump modulation; relative intensity noise; Frequency modulation; Optical attenuators; Optical pulses; Phase modulation; Phase noise; Photodetector; intensity noise; mode-locked laser; phase noise; pulse;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Global Conference (PGC), 2010

Conference_Location

Singapore

Print_ISBN

978-1-4244-9882-6

Type

conf

DOI

10.1109/PGC.2010.5705946

Filename

5705946