Delayed differential RIN reduction with interferometric noise suppression

Author

Helkey, R. ; Roussell, H.

Author_Institution

Lincoln Lab., MIT, Lexington, MA, USA

fYear

1998

fDate

22-27 Feb. 1998

Firstpage

259

Lastpage

260

Abstract

Summary form only given. The performance of a 4-GHz delayed differential link was measured, using a 1.55-/spl mu/m SDL distributed feedback (DFB) laser and a UTP dual-output modulator. Present polarization couplers only have isolation of -20 -30 dB between the polarization states. The large optical path length difference in combination with this residual cross talk leads to an optical filter, which causes frequency to amplitude noise conversion.

Keywords

distributed feedback lasers; laser noise; light interferometry; optical fibre communication; optical filters; optical polarisers; semiconductor lasers; 1.55 mum; 4 GHz; GHz delayed differential link; SDL DFB laser; UTP dual-output modulator; delayed differential RIN reduction; frequency to amplitude noise conversion; interferometric noise suppression; large optical path length difference; optical filter; polarization couplers; polarization states; residual cross talk; Couplers; Delay; Distributed feedback devices; Laser feedback; Laser noise; Noise reduction; Optical filters; Optical interferometry; Optical noise; Optical polarization;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 1998. OFC '98., Technical Digest

Conference_Location

San Jose, CA, USA

Print_ISBN

1-55752-521-8

Type

conf

DOI

10.1109/OFC.1998.657378

Filename

657378