Ring-Resonator-Based Wavelength Filters

Geuzebroek, Douwe; Driessen, A.

doi:10.1007/3-540-31770-8_9

Cited by 31 publications

(13 citation statements)

References 75 publications

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“…Similarly, an add-drop IM-MRR filter with a radius of 15 µm was also fabricated to serve as the positive and negative signed information encoding element. As shown in Figure 5(a), another MZI coupler connecting add and drop ports of the IM-MRR is implemented, and both MZI couplers are designed symmetric to the ring with coupling gaps of 200 nm to reduce the IL 37 . .…”

Section: /17mentioning

confidence: 99%

Towards a High-density Photonic Tensor Core Enabled by Intensity-modulated Microrings and Photonic Wire Bonding

Luan

Salmani

et al. 2022

Preprint

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We propose a photonic processing unit for high-density analog computation using intensity-modulation-based microringmodulators (IM-MRMs). The output signal at the fixed resonance wavelength is directly intensity modulated by changing theextinction ratio (ER) of the IM-MRM. Thanks to the intensity-modulated approach, the proposed photonic processing unit isless sensitive to the inter-channel crosstalk. Simulation results reveal that the proposed design offers a maximum of 17-foldincrease in wavelength channel density compared to its wavelength-modulated counterpart. Therefore, a photonic tensor coreof size 512 × 512 can be realized by current foundry lines. A convolutional neural network (CNN) simulator with 6-bit precisionis built for handwritten digit recognition task using the proposed modulator. Simulation results show an overall accuracy of 96.76%, when the wavelength channel spacing suffers a 3-dB power penalty. To experimentally validate the system, 1000 dotproduct operations are carried out with a 4-bit signed system on a co-packaged photonic chip, where optical and electrical I/Osare realized using photonic and electrical wire bonding techniques. Study of the measurement results show a mean squarederror (MSE) of 3.09 × 10^−3 for dot product calculations. The proposed IM-MRM, therefore, renders the crosstalk issue tractableand provides a solution for the development of large-scale optical information processing systems with multiple wavelengths.

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Section: /17mentioning

confidence: 99%

Towards a High-density Photonic Tensor Core Enabled by Intensity-modulated Microrings and Photonic Wire Bonding

Luan

Salmani

et al. 2022

Preprint

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“…,Λ i,tm , each n λ -tuple assigned to its target t ∈ T . The WR protocol ensures signal delivery to target exploiting the network topology and the ability of optical switches to deviate on a different waveguide all and only those wavelengths that are resonant peaks of the transmission characteristic of the Micro Ring Resonators (MRRs) an optical switch is made of [6]. These peaks depend on the radius of the MRR, and the length of the ring radius is the first parameter to be set.…”

Section: A Network Model For Carrier Wavelength Selection Carrier Wavelength Selection In Wronocmentioning

confidence: 99%

A network model for routing-fault-free wavelength selection in WRONoCs design

Nonato

Bertozzi

Gavanelli

et al. 2018

Electronic Notes in Discrete Mathematics

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Emerging technologies in on-chip communication domain bring about new combinatorial optimization problems at design automation. We address the Wavelength Selection Problem in Wavelength-Routed Optical Networks-on-Chip (WRONoCs), where wavelengths act as signal carriers for initiator-to-target communication, so that signals are the least interfering and routing faults are prevented. We present this novel engineering problem and model it as a constrained shortest path on acyclic networks, propose a graph-based mathematical formulation and an iterative procedure on incremental graphs to solve the model on realistic data.

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“…However, asymmetric waveguide/resonator coupling may offer an optimum functional behavior 19 , as in a criticallycoupled MMR where the highest throughput attenuation (with subsequent optimization of the extinction ratio between the drop and through ports and crosstalk reduction between drop and add signals at the throughput port) is attainable 20 or when used as dispersion compensators in the time domain 21 .…”

Section: Introductionmentioning

confidence: 99%

Requirements for gain/oscillation in Yb³⁺/Er³⁺-codoped microring resonators

Vallés

Gălătuș

2015

SPIE Proceedings

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A detailed model of the performance of a highly Yb 3+ /Er 3+ -codoped phosphate glass add-drop filter, which combines the propagation at resonance of both pump and signal powers inside the microring resonator with their interaction with the dopant ions, is used to analyze the requirements for gain/oscillation in these structures. Special attention is paid to the influence of additional coupling losses and asymmetry between the input/output couplers. It is concluded that, due to small signal gain saturation and the limited range of pump amplitude coupling coefficients, asymmetry does not greatly influence gain/oscillation requirements through the pump intensity build-up inside the ring. Asymmetry effect on small signal intensity transfer rate and threshold gain instead allows a significant lightening of the demanding doping ions concentrations requirements to achieve oscillation.

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Ring-Resonator-Based Wavelength Filters

Cited by 31 publications

References 75 publications

Towards a High-density Photonic Tensor Core Enabled by Intensity-modulated Microrings and Photonic Wire Bonding

Towards a High-density Photonic Tensor Core Enabled by Intensity-modulated Microrings and Photonic Wire Bonding

A network model for routing-fault-free wavelength selection in WRONoCs design

Requirements for gain/oscillation in Yb³⁺/Er³⁺-codoped microring resonators

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Ring-Resonator-Based Wavelength Filters

Cited by 31 publications

References 75 publications

Towards a High-density Photonic Tensor Core Enabled by Intensity-modulated Microrings and Photonic Wire Bonding

Towards a High-density Photonic Tensor Core Enabled by Intensity-modulated Microrings and Photonic Wire Bonding

A network model for routing-fault-free wavelength selection in WRONoCs design

Requirements for gain/oscillation in Yb3+/Er3+-codoped microring resonators

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Requirements for gain/oscillation in Yb³⁺/Er³⁺-codoped microring resonators