Optimum phase noise reduction and repetition rate tuning in quantum-dot mode-locked lasers

Habruseva, Tatiana; Arsenijević, D.; Kleinert, Moritz; Bimberg, D.; Huyet, Guillaume; Hegarty, Stephen P.

doi:10.1063/1.4861604

Cited by 26 publications

(11 citation statements)

References 22 publications

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“…Semiconductor MLLs are excellent candidates for generating ultra-short optical pulses at high repetition rate [6]. Optical frequency combs emitted by MLLs have high extinction ratios, low jitter, and low chirp, which can be utilized in a variety of applications including arbitrary waveform generation, optical clock generation and recovery, coherent communications systems, highspeed analog-to-digital conversion and optical time-division multiplexing etc [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Passively mode-locked III-V/silicon laser with continuous-wave optical injection

Cheng¹,

Luo²,

Song³

et al. 2015

Opt. Express

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We demonstrate electrically pumped two-section mode locked quantum well lasers emitting at the L-band of telecommunication wavelength on silicon utilizing die to wafer bonding techniques. The mode locked lasers generate pulses at a repetition frequency of 30 GHz with signal to noise ratio above 30 dB and 1 mW average output power per facet. Optical injection-locking scheme was used to improve the noise properties of the pulse trains of passively mode-locked laser. The phases of the mode-locked frequency comb are shown to be coherent with that of the master continuous-wave (CW) laser. The radio-frequency (RF)-line-width is reduced from 7.6 MHz to 150 kHz under CW optical injection. The corresponding pulse-to-pulse jitter and integrated RMS jitter are 29.7 fs/cycle and 1.0 ps, respectively. The experimental results demonstrate that optical injection can reduce the noise properties of the passively mode locked III-V/Si laser in terms of frequency linewidth and timing jitter, which makes the devices attractive for photonic analog-to-digital converters and clock generation and recovery.

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Section: Introductionmentioning

confidence: 99%

Passively mode-locked III-V/silicon laser with continuous-wave optical injection

Cheng¹,

Luo²,

Song³

et al. 2015

Opt. Express

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“…With injection seed the integrated jitter was reduced to 240 fs and the repetition rate tuning range was increased to 167 MHz [9]. Both, optical injection power and modulation power influenced the results.…”

Section: Noise Reduction and Repetition Rate Tuningmentioning

confidence: 96%

“…We achieved the lowest integrated jitter of 121 fs and the widest frequency tuning range of 342 MHz with coherent sidebands injection seeding of the QD-PMLLs [9]. The sidebands injection also resulted in all-modal linewidth reduction, optical spectrum narrowing and its red shift from the injection seed [10][11][12].…”

Section: Wavelength (Nm)mentioning

confidence: 99%

“…The modulator was biased at the transmission minimum and driven via Agilent signal generator at half repetition rate, giving two coherent In the passive mode-locked regime, the QD-MLL emitted pulses of 2.8 ps duration. The pulse train demonstrated large timing jitter values of 9 ps and significant phase noise with optical modal linewidth values in the range of 100 MHz [9]. The jitter was retrieved from single-sideband noise measured via electrical spectrum analyzers and integrated from 10 kHz to 1 GHz.…”

Section: Measurementsmentioning

confidence: 99%

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Wider-frequency combs generation, noise reduction, and repetition rate tuning in quantum-dot mode-locked lasers

et al. 2014

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We describe the technique allowing for generation of low-noise wider frequency combs and pulses of shorter duration in quantum-dot mode-locked lasers. We compare experimentally noise stabilization techniques in semiconductor modelocked lasers. We discuss the benefits of electrical modulation of the laser absorber voltage (hybrid mode-locking), combination of hybrid mode-locking with optical injection seeding from the narrow linewidth continues wave master source and optical injection seeding of two coherent sidebands separated by the laser repetition rate.

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“…Many PAPR reduction methods have been proposed to address this issue. These include adaptive step size cognitive clipping [2], tone injection [3]- [5], iterative clipping and filtering (ICF) [6]- [9], coding [10]- [13], selected mapping [14]- [17] and partial transmit sequences [18]- [22]. Among these techniques, ICF technique is quite successful that requires no modification to the receiver structure.…”

Section: Introductionmentioning

confidence: 99%

A PAPR Reduction Method Based on Differential Evolution

Wang¹,

Xiao²

2015

jcm

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High peak-to-average ratio power (PAPR) is a critical practical problem for an OFDM system. Many techniques, such as clipping and filtering (ICF), cognitive clipping, have been proposed to deal with the issue. However, it needs to determine the relationship between error vector magnitude (EVM) and clipping ratio (CR). In this paper, we formulate a universal PAPR optimization model with EVM constraint, and propose a differential evolution (DE) algorithm with a time complexity of 2 (log) O N N. The optimization parameter of the new approach is clipping noise. The EVM constraint guarantees proper receiver operation that is specified by most modern communication standards. The proposed DE algorithm employs the noise vector as the population. It adjusts three crucial control parameters to minimize cost function which is the amount of PAPR reduction. Simulation results show that our proposed method can offer good performance in PAPR and bit error rate (BER).

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Optimum phase noise reduction and repetition rate tuning in quantum-dot mode-locked lasers

Abstract: Original citationHabruseva, T., Arsenijević, D., Kleinert, M., Bimberg, D., Huyet, G. and

Cited by 26 publications

References 22 publications

Passively mode-locked III-V/silicon laser with continuous-wave optical injection

Passively mode-locked III-V/silicon laser with continuous-wave optical injection

Wider-frequency combs generation, noise reduction, and repetition rate tuning in quantum-dot mode-locked lasers

A PAPR Reduction Method Based on Differential Evolution

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