Title

Injection Locked Passively Modelocked Semiconductor Laser For Optical Heterodyne Detection Using A Single Axial Mode

Keywords

Coherent communication; Heterodyne detection; Modelocked semiconductor laser

Abstract

The optical heterodyne detection for an extremely densely channelized coherent communication systems using phase coherent optical combs is demonstrated by using a passively modelocked semiconductor laser injection locked to a master laser oscillator. The single sideband noise of the heterodyne beat tone at 13.160 GHz was reduced to -123 dBc/Hz at 100 kHz offset from the carrier by exploiting the excellent noise rejection performance of a commercially available microwave bandpass filter. A signal-to-noise ratio of over 65 dB/Hz has been achieved in a single channel filtered from two analog RF signals detuned by only 200 MHz. These results show improved signal-to-noise ratio and superior crosstalk reduction between densely packed neighboring channels via electrical manipulation of the optical heterodyne detection signal.

Publication Date

12-24-2004

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

5435

Number of Pages

48-52

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.541692

Socpus ID

10444280898 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/10444280898

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