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Amplitude and frequency modulation characteristics of widely tunable GCSR lasers
KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT. (Photonics)
KTH, School of Information and Communication Technology (ICT), Microelectronics and Applied Physics, MAP. KTH, School of Information and Communication Technology (ICT), Microelectronics and Information Technology, IMIT. (Photonics)ORCID iD: 0000-0003-3056-4678
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1998 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 10, 1383-1385 p.Article in journal (Refereed) Published
Abstract [en]

The amplitude (AM) and frequency (FM) modulation responses of a grating assisted codirectional coupler with rear sampled grating reflector laser were measured over a 40-nm tuning range. The extracted modulation bandwidth varied between 3 and 4 GHz and parameters as parasitic cutoff, maximum relaxation frequency and K-factor were extracted from curve fittings to the AM response. The frequency modulation measurements revealed low chirp despite the large tunability of the device. The linewidth enhancement factor was calculated from the AM and FM measurements. The values ranges from three to nine for ten different operating wavelengths

Place, publisher, year, edition, pages
1998. Vol. 10, 1383-1385 p.
Keyword [en]
3 to 4 GHz;AM measurements;AM response;FM measurements;K-factor;amplitude modulation characteristics;curve fittings;frequency modulation characteristics;frequency modulation measurements;grating assisted codirectional coupler;large tunability;linewidth enhancement factor;low chirp;maximum relaxation frequency;modulation bandwidth;operating wavelengths;parasitic cutoff;rear sampled grating reflector laser;tuning range;widely tunable GCSR lasers;amplitude modulation;chirp modulation;diffraction gratings;distributed Bragg reflector lasers;electro-optical modulation;frequency modulation;laser tuning;optical directional couplers;semiconductor lasers;spectral line breadth;
National Category
Telecommunications Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:kth:diva-89303DOI: 10.1109/68.720268OAI: oai:DiVA.org:kth-89303DiVA: diva2:502981
Note
NR 20140805Available from: 2012-02-14 Created: 2012-02-14 Last updated: 2017-12-07Bibliographically approved

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Schatz, Richard

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