Opto-electronic oscillator in the mm-W range for 5G wireless and mobile networks: Design challenges and possible solutions

Ilgaz, Mehmet Alp; Batagelj, Boštjan

doi:10.23919/ondm.2017.7958522

Cited by 11 publications

(6 citation statements)

References 17 publications

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“…This system is based on a radio-over-fiber system (RoF) [14]. One of the possible problems of this configuration was mentioned in [15][16][17][18]. It explains the power-penalty problem due to the chromatic dispersion.…”

Section: Distribution Of the Millimeter-wave Over The Ponmentioning

confidence: 99%

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Using Tunable Dispersion-Compensated Modules to Overcome the Power Penalty of a Millimeter-Wave Opto-Electronic Oscillator Signal that is Distributed via a Passive Optical Network for 5G Networks

Ilgaz

Batagelj

2018

2018 11th International Symposium on Communication Systems, Networks &Amp; Digital Signal Processing (CSNDSP)

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The opto-electronic oscillator (OEO), used as a high-frequency oscillator to produce millimeter-wave (mm-W) signals with a low phase noise, is a suitable candidate for fifth-generation (5G) networks in the mm-W range. Since a mm-W OEO is too expensive for every 5G base-station, another option is to employ the OEO at the central-office to feed the base-stations via a passive optical network (PON) infrastructure. The lengths of the PON branches introduce a large power penalty to the transmitted mm-W OEO signal due to the chromatic dispersion of the optical fiber. In this paper the idea of upgrading the PON branches with tunable dispersion-compensated modules to have power-penalty-free transmission is proposed. By overcoming the powerpenalty problem in the mm-W range, the integrated optical dispersioncompensated modules are used to minimize the influence of the dispersion in the standard single-mode optical fiber used in the PON.

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Section: Distribution Of the Millimeter-wave Over The Ponmentioning

confidence: 99%

“…The system simulation is designed on a simple network based on a point-to-point link. But one of our ideas in [18] is to use this idea in a more complex network where several different lengths exist. This means we will feed more than one base-station from the central-office with a single oscillator link.…”

Section: System Simulationsmentioning

confidence: 99%

Using Tunable Dispersion-Compensated Modules to Overcome the Power Penalty of a Millimeter-Wave Opto-Electronic Oscillator Signal that is Distributed via a Passive Optical Network for 5G Networks

Ilgaz

Batagelj

2018

2018 11th International Symposium on Communication Systems, Networks &Amp; Digital Signal Processing (CSNDSP)

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“…One example of this is terahertz (THz) photonic signal generation using an OEO [47][48][49]. Another possible application of an OEO is to use it as a local oscillator (LO) in the central office of a 5G radio access network (RAN) [50][51][52]. The single-loop OEO can be combined with an optical fiber path selector to measure the free spectral range (FSR) and side-mode suppression ratio (SMSR) of the OEO for different lengths of the optical delay line [53].…”

Section: Introductionmentioning

confidence: 99%

Opto-Electronic Oscillators for Micro- and Millimeter Wave Signal Generation

Ilgaz

Batagelj

2021

Electronics

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High-frequency signal oscillators are devices needed for a variety of scientific disciplines. One of their fundamental requirements is low phase noise in the micro- and millimeter wave ranges. The opto-electronic oscillator (OEO) is a good candidate for this, as it is capable of generating a signal with very low phase noise in the micro- and millimeter wave ranges. The OEO consists of an optical resonator with electrical feedback components. The optical components form a delay line, which has the advantage that the phase noise is independent of the oscillator’s frequency. Furthermore, by using a long delay line, the phase noise characteristics of the oscillator are improved. This makes it possible to widen the range of possible OEO applications. In this paper we have reviewed the state of the art for OEOs and micro- and millimeter wave signal generation as well as new developments for OEOs and the use of OEOs in a variety of applications. In addition, a possible implementation of a centralized OEO signal distribution as a local oscillator for a 5G radio access network (RAN) is demonstrated.

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“…The generation of broadband and low noise microwave and millimeter wave signals is important for many applications, including among others, radars, wireless communications, optical signal processing, warfare systems, and modern instrumentation 1,2,3 . Among the different approaches to generate microwave and millimeter signals, the optoelectronic oscillator (OEO) is a particularly interesting solution due to its capability to provide, by direct synthesis, spectrally pure and wideband tunable signals 4,5 .…”

Section: Introductionmentioning

confidence: 99%

Wideband tunable microwave signal generation in a silicon-micro-ring-based optoelectronic oscillator

Phuong

Alonso‐Ramos

Roux

et al. 2020

Sci Rep

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Si photonics has an immense potential for the development of compact and low-loss opto-electronic oscillators (OEO), with applications in radar and wireless communications. However, current Si OEO have shown a limited performance. Si OEO relying on direct conversion of intensity modulated signals into the microwave domain yield a limited tunability. Wider tunability has been shown by indirect phase-modulation to intensity-modulation conversion, requiring precise control of the phase-modulation. Here, we propose a new approach enabling Si OEOs with wide tunability and direct intensity-modulation to microwave conversion. The microwave signal is created by the beating between an optical source and single sideband modulation signal, selected by an add-drop ring resonator working as an optical bandpass filter. The tunability is achieved by changing the wavelength spacing between the optical source and resonance peak of the resonator. Based on this concept, we experimentally demonstrate microwave signal generation between 6 GHz and 18 GHz, the widest range for a Si-based OEO. Moreover, preliminary results indicate that the proposed Si OEO provides precise refractive index monitoring, with a sensitivity of 94350 GHz/RIU and a potential limit of detection of only 10 8 RIU, opening a new route for the implementation of high-performance Si photonic sensors.

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Opto-electronic oscillator in the mm-W range for 5G wireless and mobile networks: Design challenges and possible solutions

Cited by 11 publications

References 17 publications

Using Tunable Dispersion-Compensated Modules to Overcome the Power Penalty of a Millimeter-Wave Opto-Electronic Oscillator Signal that is Distributed via a Passive Optical Network for 5G Networks

Using Tunable Dispersion-Compensated Modules to Overcome the Power Penalty of a Millimeter-Wave Opto-Electronic Oscillator Signal that is Distributed via a Passive Optical Network for 5G Networks

Opto-Electronic Oscillators for Micro- and Millimeter Wave Signal Generation

Wideband tunable microwave signal generation in a silicon-micro-ring-based optoelectronic oscillator

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