Proceedings ArticleDOI
Ultra-high, 72 GHz resonance frequency and 44 GHz bandwidth of injection-locked 1.55-/spl mu/m DFB lasers
TLDR
In this article, the authors demonstrate record high resonance frequency (72 GHz) and record broadband performance (44 GHz) for 1.55-/spl mu/m DFB lasers under strong optical injection locking.Abstract:
We demonstrate record high resonance frequency (72 GHz) and record broadband performance (44 GHz) for 1.55-/spl mu/m direct-modulated distributed-feedback (DFB) lasers under strong optical injection locking. The frequency response above 50 GHz is measured directly using optical heterodyne detection.read more
Citations
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Journal ArticleDOI
Enhanced Modulation Characteristics of Optical Injection-Locked Lasers: A Tutorial
TL;DR: In this article, a tutorial of optical injection locking of semiconductor lasers is given, with particular emphasis on the enhancement of system parameters, and physical intuition of each parameter enhancement is explained and practical design rules and trends are also shown.
Journal ArticleDOI
Strong optical injection-locked semiconductor lasers demonstrating > 100-GHz resonance frequencies and 80-GHz intrinsic bandwidths.
TL;DR: By using strong optical injection locking, resonance frequency enhancement in excess of 100 GHz in semiconductor lasers is reported, showing the broad applicability of the technique and that the coupling Q is the figure-of-merit for Resonance frequency enhancement.
Journal ArticleDOI
Frequency Response Enhancement of Optical Injection-Locked Lasers
TL;DR: In this paper, the authors derived closed-form solutions to the relaxation oscillation (resonance) frequency and damping term, as well as the low-frequency damping terms, and discussed design rules for maximizing resonance frequency and broadband performance.
Journal ArticleDOI
40 GHz Bandwidth and 64 GHz Resonance Frequency in Injection-Locked 1.55 $\mu$ m VCSELs
TL;DR: In this paper, the authors used injection locking to increase the laser resonance frequency, together with a low parasitic VCSEL design, and achieved a 3 dB bandwidth of over 40 GHz.
Journal ArticleDOI
Directly Modulated Semiconductor Lasers
Ninghua Zhu,Zhan Shi,Zhi ke Zhang,Yi ming Zhang,Can Wen Zou,Ze ping Zhao,Yu Liu,Wei Li,Ming Li +8 more
TL;DR: In this paper, a review and discussion of the directly modulated semiconductor lasers and their applications to optical communications and microwave photonics is presented for the first time to the best of our knowledge.
References
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Journal ArticleDOI
Bandwidth enhancement and broadband noise reduction in injection-locked semiconductor lasers
TL;DR: Injection locking of a semiconductor laser can significantly improve the broadband modulation characteristics as mentioned in this paper, by adjusting the frequency offset between the master laser and the slave laser, improved modulation bandwidth or flatness of the modulation response can be emphasized.
Journal ArticleDOI
Small-signal analysis of modulation characteristics in a semiconductor laser subject to strong optical injection
TL;DR: In this paper, a small-signal analysis using the lumped element model shows that both the frequency and damping of the characteristic resonances of the coupled complex field and free carriers (gain medium) are modified.
Journal ArticleDOI
35-GHz intrinsic bandwidth for direct modulation in 1.3-/spl mu/m semiconductor lasers subject to strong injection locking
TL;DR: In this paper, a modulation bandwidth of 35 GHz that is free from electrical parasitic effects is observed in the injection-locked laser system, which approaches the maximum modulation bandwidth set by the K factor for the free-running laser.
Journal ArticleDOI
Double-locked laser diode for microwave photonics applications
T.B. Simpson,F. Doft +1 more
TL;DR: In this paper, the authors demonstrated tunable, locked output from 9.5 to 17.1 GHz with a linewidth below the 1-kHz resolution limit of the measurement apparatus.
Journal ArticleDOI
Optical receiver and modulator frequency response measurement with a Nd:YAG ring laser heterodyn technique
TL;DR: In this paper, the frequency response of optical receivers can be accurately calibrated by measuring a heterodyne signal generated by mixing two Nd:YAG ring lasers, where one laser signal passes through the modulator while the other functions as a local oscillator to convert one of the sidebands of the modulated carrier to a fixed intermediate signal.
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