Impact of Laser Mode Partition Noise on Optical Heterodyning at Millimeter-Wave Frequencies

Elwan, Hamza Hallak; Khayatzadeh, Ramin; Shao, Tong; Poëtte, Julien; Cabon, B.; Barry, Liam P.

doi:10.1109/jlt.2016.2596381

Cited by 12 publications

(3 citation statements)

References 24 publications

(26 reference statements)

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“…Two common methods to generate OFCs are; the use of mode locked laser (MLL) [12] diodes and optical gain-switching of a laser diode [13]. MLLs suffer from large linewidth (MHz range) and mode partition noise which can be imparted to the heterodyne mm-wave signal [14], and, unlike combs generated through gain-switching, they exhibit a fixed free spectral range (FSR) which limits flexibility in the generated mm-wave carrier. Our recent work, [7], has experimentally demonstrated the use of an OFC generated through gain-switching for mm-wave RoF transmission appropriate for 5G applications.…”

mentioning

confidence: 99%

Gain-Switched Optical Frequency Combs for Future Mobile Radio-Over-Fiber Millimeter-Wave Systems

Browning

Elwan

Martin

et al. 2018

J. Lightwave Technol.

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The millimeter-wave (mm-wave) frequency band has emerged as a means to overcome current radio frequency spectral limitations and represents an interesting solution to fulfill the bandwidth and networking requirements of fifth generation (5G) mobile communications and beyond. Photonic generation of these frequencies holds advantages over electronic methods in terms of cost and effective network distribution. Due to their coherent nature, optical frequency combs (OFC) are a promising solution for the efficient generation of mm-wave frequencies. The work outlined examines the use of OFCs in a mm-wave radio-over-fiber (RoF) heterodyne system with regard to the specific requirements of a 5G candidate waveform, universally filtered orthogonal frequency division multiplexing. Through experimentation and simulation, the key limitations of linewidth, effective path length difference, and relative intensity noise (RIN) are explored. Results are presented, in terms of error vector magnitude (EVM), for a wide range of system parameters highlighting important considerations to be taken in designing future mm-wave RoF systems employing OFCs. Performance of ∼5% EVM using single sideband modulation is achieved for optimized system conditions and an RIN level of −132 dB/Hz.

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mentioning

confidence: 99%

Gain-Switched Optical Frequency Combs for Future Mobile Radio-Over-Fiber Millimeter-Wave Systems

Browning

Elwan

Martin

et al. 2018

J. Lightwave Technol.

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“…To relax the constraints on the path matching and correlation of OFC tones, our approach uses digital PN compensation algorithm at the receiver along with low linewidth MLL as optical source. Previous work with a MLL [34] has demonstrated the transmission of high baud rate single carrier signals, for which the impact of phase noise is minimal. Here, we have demonstrated the transmission of 5G envisioned small subcarrier spacing multi-carrier signals.…”

Section: Ofc and Reduced Dsp Receivermentioning

confidence: 99%

Optical Heterodyne Analog Radio-Over-Fiber Link for Millimeter-Wave Wireless Systems

Delmade

Browning

Vérolet

et al. 2021

J. Lightwave Technol.

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Optical heterodyne analog radio-over-fiber (A-RoF) links provide an efficient solution for future millimeter wave (mmwave) wireless systems. The phase noise of the photo-generated mm-wave carrier limits the performance of such links, especially, for the transmission of low subcarrier baud rate multi-carrier signals. In this work, we present three different techniques for the compensation of the laser frequency offset (FO) and phase noise (PN) in an optical heterodyne A-RoF system. The first approach advocates the use of an analog mm-wave receiver; the second approach uses standard digital signal processing (DSP) algorithms, while in the third approach, the use of a photonic integrated mode locked laser (MLL) with reduced DSP is advocated. The compensation of the FO and PN with these three approaches is demonstrated by successfully transmitting a 1.95 MHz subcarrier spaced orthogonal frequency division multiplexing (OFDM) signal over a 25 km 61 GHz mm-wave optical heterodyne A-RoF link. The advantages and limitations of these approaches are discussed in detail and with regard to recent 5G recommendations, highlighting their potential for deployment in next generation wireless systems.

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“…Over the past few years, optical frequency comb sources and their applications as monolithic sources of multiple wavelength channels for wavelength division multiplexing (WDM), RoF, and coherent systems have been studied extensively [9][10][11][12][13][14][15][16][17][18][19][20][21]. Among different optical frequency comb technologies, mode-locked laser (MLL) sources are very attractive solutions especially for mmWave RoF communication systems due to suppression of phase noise between correlated optical tones [22][23][24][25][26]. Passively mode-locked lasers based on saturable absorber [23] or quantum dash gain medium [24,26] have been used extensively for optical mmWave generation.…”

Section: Introductionmentioning

confidence: 99%

Quantum Dot Coherent Comb Laser Source for Converged Optical-Wireless Access Networks

Zhang

Jia

et al. 2021

IEEE Photonics J.

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Impact of Laser Mode Partition Noise on Optical Heterodyning at Millimeter-Wave Frequencies

Cited by 12 publications

References 24 publications

Gain-Switched Optical Frequency Combs for Future Mobile Radio-Over-Fiber Millimeter-Wave Systems

Gain-Switched Optical Frequency Combs for Future Mobile Radio-Over-Fiber Millimeter-Wave Systems

Optical Heterodyne Analog Radio-Over-Fiber Link for Millimeter-Wave Wireless Systems

Quantum Dot Coherent Comb Laser Source for Converged Optical-Wireless Access Networks

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