Sampled-grating DBR laser-based analog optical transmitters

Johansson, Leif; Getty, J.T.; Akulova, Y.A.; Fish, G.A.; Coldren, L.A.

doi:10.1109/jlt.2003.819786

Cited by 14 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…INTRODUCTION W IDELY tunable lasers (TLs) are becoming an essential component for operation of advanced wavelength-division-multiplexed (WDM) systems, packetswitched schemes, and access networks. The sampled grating distributed Bragg reflector (SG DBR) TL has emerged as the most promising candidate for such WDM reconfigurable applications, due to its large wavelength tuning range (40 nm), high output power ( 10 dBm), high sidemode suppression ratio (SMSR) ( 45 dB), and simplicity of integration [1]. External modulation of TLs is currently the most common method to modulate the light-wave signal.…”

Section: Novel Frequency Chirp Compensation Scheme Formentioning

confidence: 99%

Novel Frequency Chirp Compensation Scheme for Directly Modulated SG DBR Tunable Lasers

Maher

Shi

Anandarajah

et al. 2009

IEEE Photon. Technol. Lett.

View full text Add to dashboard Cite

Abstract-The authors demonstrate a compensation scheme to reduce the frequency chirp associated with directly modulated sampled grating distributed Bragg reflector tunable lasers. Experimental results obtained show that the direct modulation of the laser's gain section results in a large frequency chirp of 25 GHz. However, by simultaneous modulation of the laser's phase section this large frequency chirp can be significantly reduced.Index Terms-Direct intensity modulation, frequency chirp, optical fiber communications, tunable laser (TL), wavelength-division multiplexing (WDM).

show abstract

Section: Novel Frequency Chirp Compensation Scheme Formentioning

confidence: 99%

Novel Frequency Chirp Compensation Scheme for Directly Modulated SG DBR Tunable Lasers

Maher

Shi

Anandarajah

et al. 2009

IEEE Photon. Technol. Lett.

View full text Add to dashboard Cite

show abstract

“…[17,18] RIN in semiconductor lasers has been extensively studied theoretically and experimentally in different types of single section devices, such as Fabry-Perot (FP) lasers, [19,20] distributed feedback (DFB) lasers, [18,21] DFB tapered lasers, [22] DBR lasers, [23] vertical cavity surface emitting lasers (VCSEL) [24] and semiconductor optical amplifiers (SOA) with straight [25] or tapered geometries. [26] The RIN properties of two-section lasers with straight sections [27] and tapered section [10] have been studied, as well as those of masteroscillator power-amplifiers (MOPA) in integrated [13,28,29] or hybrid [30] configurations. Finally, multi-section lasers have also been studied [31,32] due to their gain-lever properties.…”

Section: Introductionmentioning

confidence: 99%

Relative Intensity Noise in a Two‐Section Distributed Bragg Reflector Tapered Laser

Adamiec,

Tijero,

Esquivias

et al. 2024

Physica Rapid Research Ltrs

View full text Add to dashboard Cite

The relative intensity noise (RIN) in a two‐section distributed Bragg reflector (DBR) tapered laser emitting around 1060 nm is being studied experimentally. By analyzing the RIN spectra, a resonance frequency and damping is obtained. Herein, the dependence of the resonance frequency and the maximum RIN at the resonance frequency is studied as functions of the ridge waveguide (RW) and tapered section currents independently. The low frequency RIN is approximately −162 dB Hz−1, and the RIN peak at currents providing high output power is as low as −154 dB Hz−1. The observed nonlinearity of the squared resonance frequency with the RW section current is attributed to carrier saturation. The measured high values of the resonance frequency, exceeding 2.5 GHz for RW currents higher than 100 mA at a tapered current of 3 A, indicate gain lever enhancement.

show abstract

“…They are being introduced as alternatives to fixed wavelength sources to provide a greater degree of flexibility [1] and to reduce large inventory [2]. The sampled-grating distributed Bragg reflector (SG DBR) TL proves to be an ideal candidate, due to its large tuning range (40 nm), high output power (10 dBm), high sidemode suppression ratio (SMSR dB), and simplicity of integration [3]. Thus far, external modulation has been the most popular modulation technique used with TLs.…”

Section: Introductionmentioning

confidence: 99%

“…Alternatively, direct modulation is one of the most simple and efficient ways to modulate the lightwave signal. Moreover, direct modulation has inherently a more linear response than most optical modulators [3]. Hence, it is rational to investigate the performance of a directly modulated SG DBR laser in order to verify its usefulness especially for short reach applications such as in WDM-based access networks.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Frequency Drift of Sampled-Grating DBR Laser Module Under Direct Modulation

Anandarajah

Maher

Barry

et al. 2008

IEEE Photon. Technol. Lett.

View full text Add to dashboard Cite

Abstract-The authors demonstrate the drift in frequency of a static sampled-grating distributed Bragg reflector (SG DBR) laser module when it is subjected to direct modulation. The magnitude of drift and its settling time is characterized as a function of the index of modulation. Results show that when the directly modulated SG DBR is optically filtered, as in a dense wavelength-division-multiplexed system, a power penalty of 6.7 dB is incurred in comparison to the unfiltered case. IndexTerms-Dense wavelength-division multiplexing (DWDM), direct intensity modulation, laser stability, optical fiber communications, tunable lasers (TLs).

show abstract

Sampled-grating DBR laser-based analog optical transmitters

Cited by 14 publications

References 22 publications

Novel Frequency Chirp Compensation Scheme for Directly Modulated SG DBR Tunable Lasers

Novel Frequency Chirp Compensation Scheme for Directly Modulated SG DBR Tunable Lasers

Relative Intensity Noise in a Two‐Section Distributed Bragg Reflector Tapered Laser

Characterization of Frequency Drift of Sampled-Grating DBR Laser Module Under Direct Modulation

Contact Info

Product

Resources

About