Bandwidth and wavelength tunable optical passband filter based on silicon multiple microring resonators

Dai, Tingge; Shen, Ao; Wang, Gencheng; Wang, Yuehai; Li, Yubo; Jiang, Xiaoqing; Yang, Jianyi

doi:10.1364/ol.41.004807

Cited by 66 publications

(22 citation statements)

References 12 publications

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“…The gain is sharp but for high input voltage the wave seems not sinusoidal, it suspects due to the effects of ring cannot completely acts Figure 5 shows the power amplification for optical light in linearized-double ring resonator if it is evaluated the input amplitude of 1-10 V/m for wavelength range from 1 until 4.25 m, as depicted in the curves, the dot lines and dashed lines represent the model and demonstration data respectively. These phenomena occur due to time delay when the light propagates in the ring [22], hence the energy losses are produced as it circulates in the ring. 2255 the first and the next wave.…”

Section: Methodsmentioning

confidence: 99%

“…For a larger wavelength, it carries low energy and it requires longer period to circulate in the ring [23]. Therefore, the higher wavelength sources as inversely proportional to frequency are able to reduce energy losses along the circulation and propagation in optical media [16,22]. In future works, it is necessary to establish a relationship filtering phenomenon in micro ring resonator and metamaterial ring resonator [24][25][26].…”

Section: Methodsmentioning

confidence: 99%

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Transmission spectra of single ring coupled-waveguide resonator configuration by finite difference time domain method

et al. 2020

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Development of optical waveguide resonators have greatly expanded and continues to grow since they have kinds potential applications such as wavelength filtering, switching, coupling and multiplexing. One of resonators, coupled waveguides, ring resonators are designed and operated using various coupling configurations. Ring resonators can be particularly used as wavelength filter if the wavelength can fit a whole multiple time in the circumference of the ring. This article proposes to investigate the transmission spectra from the power source and amplify it in linearized ring resonator configurations and varies the input amplitude on five different wavelengths. With finite difference time domain method, the geometry and power source are simulated to obtain the better result and configuration. The results show the intensity phenomena of filtering in optical circuit.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Transmission spectra of single ring coupled-waveguide resonator configuration by finite difference time domain method

et al. 2020

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“…To date, a variety of approaches to photonic resonators have been pursued in order to increase the optical filter roll-off as well as to achieve a pseudo flat top spectral response. Both of these features are highly attractive for WDM based optical communications systems [8,9]. However, most approaches to filter design achieve these desired features by cascading many filters in series.…”

Section: Introductionmentioning

confidence: 99%

Optical Filters With Coupled Sagnac Loop Waveguide Reflectors

Arianfard¹,

Wu²,

Moss³

2021

Preprint

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We present theoretical designs of high performance optical filters in integrated silicon photonic nanowire resonators. We use mode interference in formed by zig-zag waveguide coupled Sagnac loop reflectors (ZWC-SLRs), tailored to achieve diverse filtering functions with good performance. These include compact bandpass filters with improved roll-off, optical analogues of Fano resonances with ultrahigh spectral extinction ratios (ERs) and slope rates, and resonance mode splitting with high ERs and low free spectral ranges. The analysis verifies the feasibility of multi-functional integrated photonic filters based on ZWC-SLR resonators for flexible spectral engineering in diverse applications.

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“…The extinction ratio is 30 dB while the bandwidth and wavelength tuning efficiencies are only 0.004 nm/mW and 0.003 nm/mW, respectively. Moreover, the cascaded MRRs [23], [24] and Bragg grating couplers [25] are also used to implement tunable optical filters. However, most tuning efficiencies are still lower than 0.05 nm/mW, which limits their practical applications in optical communication systems.…”

Section: Introductionmentioning

confidence: 99%

On-Chip All-Optical Tunable Filter With High Tuning Efficiency

Chen

Liu

et al. 2020

IEEE Photonics J.

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We propose and realize a bandwidth and wavelength-tunable all-optical filter with high tuning efficiency based on double opto-mechanical microring resonators (MRRs) assisted Mach-Zehnder interferometer (MZI) structure, which is beneficial to achieve high extinction ratio and shape factor. As the optical field gradient is largely enhanced in the free-hanging MRRs, the opto-mechanical effect could be excited by low power consumption. By injecting the corresponding low resonance powers, the drop transmission of each MRR could be flexibly tuned based on the opto-mechanical effect. Consequently, the synthetic transmission of the microring-assisted MZI could be efficiently manipulated. The results show that by injecting pump powers of 0.40 mW and 1.84 mW, the bandwidth and wavelength of the all-optical filter could be tuned from 0.17 nm to 0.30 nm, and from 1550.09 nm to 1550.60 nm respectively with maintaining a high extinction ratio of 38 dB and a small passband ripple of 1 dB. Especially, the tuning efficiencies of bandwidth and wavelength could realize up to 0.325 nm/mW and 0.277 nm/mW, respectively. The proposed optical filter has dominant advantages of high tuning efficiencies and extinction ratios, small passband ripple and compact footprint, which has significant applications in on-chip all-optical systems.

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Bandwidth and wavelength tunable optical passband filter based on silicon multiple microring resonators

Cited by 66 publications

References 12 publications

Transmission spectra of single ring coupled-waveguide resonator configuration by finite difference time domain method

Transmission spectra of single ring coupled-waveguide resonator configuration by finite difference time domain method

Optical Filters With Coupled Sagnac Loop Waveguide Reflectors

On-Chip All-Optical Tunable Filter With High Tuning Efficiency

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