Optical micro-multi-racetrack resonator filter based on SOI waveguides

Malka, Dror; Cohen, Moshe-Ishay; Turkiewicz, J. P.; Zalevsky, Zeev

doi:10.1016/j.photonics.2015.07.002

Cited by 19 publications

(12 citation statements)

References 19 publications

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“…Accordingly, the ODI and MRR can be used not only as notch filters, but in general as finite impulse response (FIR) and infinite impulse response (IIR) filters, respectively [72]. FIR filters that exploit MRRs are also possible if sophisticated designs based on the combination of multiple such elements are adopted [73].…”

Section: Odi Vs Mrr Comparison: Results and Discussionmentioning

confidence: 99%

Comparison of Basic Notch Filters for Semiconductor Optical Amplifier Pattern Effect Mitigation

2017

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Abstract:We conduct a thorough comparison of two basic notch filters employed to mitigate the pattern effect that manifests when semiconductor optical amplifiers (SOAs) serve linear amplification purposes. The filters are implemented using as the building architecture the optical delay interferometer (ODI) and the microring resonator (MRR). We formulate and follow a rational procedure, which involves identifying and applying the appropriate conditions for the filters' spectral response slope related to the SOA pattern effect suppression mechanism. We thus extract the values of the free spectral range and detuning of each filter, which allow one to equivocally realize the pursued comparison. We define suitable performance metrics and obtain simulation results for each filter. The quantitative comparison reveals that most employed metrics are better with the MRR than with the ODI. Although the difference in performance is small, it is sufficient to justify considering also using the MRR for the intended purpose. Finally, we concisely discuss practical implementation issues of these notch filters and further make a qualitative comparison between them in terms of their inherent advantages and disadvantages. This discussion reveals that each scheme has distinct features that render it appropriate for supporting SOA direct signal amplification applications with a suppressed pattern effect.

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Section: Odi Vs Mrr Comparison: Results and Discussionmentioning

confidence: 99%

Comparison of Basic Notch Filters for Semiconductor Optical Amplifier Pattern Effect Mitigation

2017

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“…In the same technological category also fall schemes that have been applied on conventional directly modulated SOAs, such as the birefringent fiber loop (BFL), either alone [21], in cascade with another BFL [22] or assisted by an optical bandpass filter [23]; and the microring resonator (MRR) [24]. The MRR is a special form of powerful waveguides [25,26], and exhibits distinctive characteristics over the aforementioned types of employed filters. These include the structural simplicity, the ultra-compact size-which makes it amenable to integration with microelectronic fabrication processes-enhanced wavelength selectivity, fine-tuning capability and availability of different material systems with the potential of copackaging with the SOA in the same hybrid platform.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Analysis of Directly Modulated Reflective Semiconductor Optical Amplifier Performance Enhancement by Microring Resonator-Based Notch Filtering

Rizou

Zoiros

2018

Applied Sciences

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Abstract:We demonstrate the feasibility of using a single microring resonator (MRR) as optical notch filter for enabling the direct modulation of a reflective semiconductor optical amplifier (RSOA) at more than tripled data rate than possible with the RSOA alone. We conduct a thorough simulation analysis to investigate and assess the impact of critical operating parameters on defined performance metrics, and we specify how the former must be selected so that the latter can become acceptable. By using an MRR of appropriate radius and detuning, the RSOA modulation bandwidth, which we explicitly quantify, can be extended to overcome the RSOA pattern-dependent performance limitations. Thus, the MRR makes the RSOA-encoded signal exhibit improved characteristics that can be exploited in practical RSOA direct modulation applications.

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“…A systematic approach based on finite element simulations for the Si PV module would be helpful to effectively understand the thermal residual stress of the Si wafers during soldering and lamination. Similarly, numerical investigation on optical power splitter using waveguides has been successfully demonstrated when understanding its impact on newly designed devices before being applied [10][11][12]. Several numerical studies have been conducted on the mechanical failures of Si solar cells and PV modules [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Thermal Residual Stress Analysis of Soldering and Lamination Processes for Fabrication of Crystalline Silicon Photovoltaic Modules

et al. 2018

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In this study, we developed a finite element model to assess the residual stress in the soldering and lamination processes during the fabrication of crystalline silicon (Si) photovoltaic (PV) modules. We found that Si wafers experience maximum thermo-mechanical stress during the soldering process. Then, the Si solar cells experience pressure during the process of lamination of each layer of the PV module. Thus, it is important to decrease the residual stress during soldering of thin Si wafers. The residual stress is affected by the number of busbars, Si wafer thickness, and solder type. Firstly, as the number of busbars increases from two to twelve, the maximum principal stress increases by almost a factor of three (~100 MPa). Such a high first principal stress can cause mechanical failure in some Si wafers. Secondly, thermal warpage increases immediately after the soldering process when the thickness of the Si wafers decreases. Therefore, the number and width of the busbars should be considered in order to avoid mechanical failure. Finally, the residual stress can be reduced by using low melting point solder. The results obtained in this study can be applied to avoid mechanical failure in PV modules employing thin Si wafers.

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Optical micro-multi-racetrack resonator filter based on SOI waveguides

Cited by 19 publications

References 19 publications

Comparison of Basic Notch Filters for Semiconductor Optical Amplifier Pattern Effect Mitigation

Comparison of Basic Notch Filters for Semiconductor Optical Amplifier Pattern Effect Mitigation

Theoretical Analysis of Directly Modulated Reflective Semiconductor Optical Amplifier Performance Enhancement by Microring Resonator-Based Notch Filtering

Thermal Residual Stress Analysis of Soldering and Lamination Processes for Fabrication of Crystalline Silicon Photovoltaic Modules

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