Suppression of second harmonic distortion in directly modulated distributed feedback lasers by external light injection

Meng, Xue; Chau, T.; Tong, D.T.K.; Wu, M.C.

doi:10.1049/el:19981415

Cited by 22 publications

(10 citation statements)

References 7 publications

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“…These characteristics in turn substantially change the phase-amplitude coupling features of the laser, which depend on the carrier variations as shown in Eq. (10). Interestingly, the GS carrier variation GS N δ exhibits a pre-resonance dip around 5 GHz.…”

Section: Gs Esmentioning

confidence: 90%

“…When the frequency and the phase of the slave laser are synchronized to the master one, it is referred as stable injection locking. In this case, the dynamical characteristics of the slave laser can be greatly improved such as reduction of frequency chirping [7], enhancement of modulation bandwidth [8], suppression of relative intensity noise [9] and nonlinear distortion [10]. In addition, optical injection locking also produces single-sideband modulation, which can alleviate the dispersion-induced power penalty in the fiber [11].…”

Section: Introductionmentioning

confidence: 99%

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Frequency-dependent linewidth enhancement factor of optical injection-locked quantum dot/dash lasers

Wang¹,

Chaibi²,

Huang³

et al. 2015

Opt. Express

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Vous avez des questions? Nous pouvons vous aider. Pour communiquer directement avec un auteur, consultez la première page de la revue dans laquelle son article a été publié afin de trouver ses coordonnées. Si vous n'arrivez pas à les repérer, communiquez avec nous à PublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. Questions? Contact the NRC Publications Archive team atPublicationsArchive-ArchivesPublications@nrc-cnrc.gc.ca. If you wish to email the authors directly, please see the first page of the publication for their contact information. NRC Publications Archive Archives des publications du CNRCThis publication could be one of several versions: author's original, accepted manuscript or the publisher's version. / La version de cette publication peut être l'une des suivantes : la version prépublication de l'auteur, la version acceptée du manuscrit ou la version de l'éditeur. For the publisher's version, please access the DOI link below./ Pour consulter la version de l'éditeur, utilisez le lien DOI ci-dessous.http://doi.org/10.1364/OE.23.021761Access and use of this website and the material on it are subject to the Terms and Conditions set forth at Frequency-dependent linewidth enhancement factor of optical injection-locked quantum dot/dash lasers Wang, Cheng; Chaibi, Mohamed E.; Huang, Heming; Erasme, Didier; Poole, Philip; Even, Jacky; Grillot, Frédéric http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/droits L'accès à ce site Web et l'utilisation de son contenu sont assujettis aux conditions présentées dans le site LISEZ CES CONDITIONS ATTENTIVEMENT AVANT D'UTILISER CE SITE WEB. NRC Publications Record / Notice d'Archives des publications de CNRC:http://nparc.cisti-icist.nrc-cnrc.gc.ca/eng/view/object/?id=970a2249-b10c-465c-8450-b8f93e3e9fa8 http://nparc.cisti-icist.nrc-cnrc.gc.ca/fra/voir/objet/?id=970a2249-b10c-465c-8450-b8f93e3e9fa8 Abstract: Combining theoretical and experimental studies show that optical injection strongly changes the behavior of the linewidth enhancement factor ( H -factor) and the FM-to-AM indices ratio (FAIR) in quantum dash/dot semiconductor lasers. In contrast to solitary lasers, both the H -factor and the FAIR at low-frequency modulation are reduced by optical injection. At high modulation frequency, however, the phaseamplitude coupling characteristics are little influenced by optical injection.

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Section: Gs Esmentioning

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Frequency-dependent linewidth enhancement factor of optical injection-locked quantum dot/dash lasers

Wang¹,

Chaibi²,

Huang³

et al. 2015

Opt. Express

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“…O PTICAL injection locking of semiconductor lasers has been widely investigated because they exhibit many advantages over free-running lasers, including the reduction of mode partition noise [1], chirp [2]- [4], relative intensity noise (RIN) [5], [6], and nonlinear distortions [7], [8]. It has also been used to provide direct optical phase modulation [9].…”

Section: Introductionmentioning

confidence: 99%

Optical Properties and Modulation Characteristics of Ultra-Strong Injection-Locked Distributed Feedback Lasers

Sung

Lau

2007

IEEE J. Select. Topics Quantum Electron.

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Abstract-The optical properties and the frequency responses of ultrastrong (injection ratio > 10 dB) injection-locked distributed feedback lasers are investigated experimentally and theoretically. We have observed three distinctive modulation regimes under different frequency detuning between the master and the slave lasers. At large negative frequency detuning, the laser exhibits enhanced modulation efficiency at low frequencies. At intermediate frequency detuning, a flat frequency response with large 3 dB bandwidth is observed. At large positive frequency detuning, the modulation response shows a pronounced resonance peak at high frequencies. These phenomena can be explained by the resonance enhancement of the slave laser cavity mode, with the resonance frequency equal to the difference between the injection-locked frequency and the cavity mode. The experimental results agree well with theoretical calculations based on three coupled rate equations. Depending on the applications, the injection locking conditions can be optimized to achieve high RF link gain, broadband, or high resonance frequency operations.

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“…For example, the CATV application requires a carrier to distortion ratio better than 50dB; GSM pico-cellular and micro-cellular requires a satisfactory dynamic range of 40-55dB and 80-90dB respectively [3,4]. A variety of linearization techniques for semiconductor lasers have been introduced and can be classified as: optoelectronic feedback and optical feed-forward [5][6][7][8][9][10]44,45], phase shift linearization [46], external light injection [47][48][49], post-distortion [11][12][13]50,51] and pre-distortion [14][15][16][17][18][19]25,35,52,53].…”

Section: Review Of Laser Linearization Techniquesmentioning

confidence: 99%

“…G. Yabre introduced used in conjunction with a direct-modulated lase diode. The first experimental demonstration of linearity improvement using optical injection locking was reported in [47,48]. Their results shows that more than 10 dB reduction of 2nd harmonic distortion nonlinearity can be obtained for a modulation frequency from 1 to 3 GHz.…”

Section: External Light Injectionmentioning

confidence: 99%

A predistortion circuit for direct modulated lasers for radio over fiber applications

Zhan¹

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Suppression of second harmonic distortion in directly modulated distributed feedback lasers by external light injection

Cited by 22 publications

References 7 publications

Frequency-dependent linewidth enhancement factor of optical injection-locked quantum dot/dash lasers

Frequency-dependent linewidth enhancement factor of optical injection-locked quantum dot/dash lasers

Optical Properties and Modulation Characteristics of Ultra-Strong Injection-Locked Distributed Feedback Lasers

A predistortion circuit for direct modulated lasers for radio over fiber applications

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