Polarization-diverse coherent optical spectrum analyzer with swept local oscillator

Author

Szafraniec, Bogdan ; Motamedi, Ali ; Baney, Douglas M.

Author_Institution

Agilent Labs., Palo Alto, CA, USA

fYear

2002

fDate

17-22 Mar 2002

Firstpage

619

Lastpage

620

Abstract

We demonstrated, for the first time, a polarization diverse coherent optical spectrum analyzer based on a continuously tunable local oscillator (LO). A resolution of 20 MHz (∼0.00016 nm) and a 60 dB dynamic range were demonstrated. The instrument employs a pseudo-depolarized LO to provide polarization diverse reception. The balanced receiver architecture makes the low-frequency IF operation possible and shows a sufficient level of intensity noise subtraction for the spectral measurements of intensity-modulated lasers.

Keywords

intensity modulation; laser tuning; laser variables measurement; light polarisation; optical modulation; oscillators; spectral analysers; wavelength division multiplexing; balanced receiver architecture; continuously tunable LO; continuously tunable local oscillator; dynamic range; intensity noise subtraction; intensity-modulated lasers; low-frequency IF operation; polarization diverse reception; polarization-diverse coherent optical spectrum analyzer; pseudo-depolarized LO; resolution; spectral measurements; swept local oscillator; Dynamic range; Instruments; Local oscillators; Low-frequency noise; Noise level; Noise measurement; Optical polarization; Optical receivers; Spectral analysis; Tunable circuits and devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002

Print_ISBN

1-55752-701-6

Type

conf

DOI

10.1109/OFC.2002.1036601

Filename

1036601