Fabrication-Tolerant CWDM (de)Multiplexer Based on Cascaded Mach–Zehnder Interferometers on Silicon-on-Insulator

Yen, Tzu-Hsiang; Hung, Yung‐Jr

doi:10.1109/jlt.2020.3026314

Cited by 49 publications

(15 citation statements)

References 25 publications

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“…Mach–Zehnder Interferometers (MZIs), one of the most widely used structures, have been demonstrated in a wide range of applications, including wavelength division multiplexers [ 34 , 35 ], optical switches [ 36 ], electro-optical modulators [ 37 ] and biosensors [ 38 , 39 ]. In this paper, we also propose AMZI temperature sensors based on the p-Si platform.…”

Section: Design Fabrication and Characterizationmentioning

confidence: 99%

Optical Temperature Sensor Based on Polysilicon Waveguides

Yin

Sun

et al. 2022

Sensors

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Traditional temperature detection has limitations in terms of sensing accuracy and response time, while chip-level photoelectric sensors based on the thermo-optic effect can improve measurement sensitivity and reduce costs. This paper presents on-chip temperature sensors based on polysilicon (p-Si) waveguides. Dual-microring resonator (MRR) and asymmetric Mach–Zehnder interferometer (AMZI) sensors are demonstrated. The experimental results show that the sensitivities of the sensors based on AMZI and MRR are 86.6 pm/K and 85.7 pm/K, respectively. The temperature sensors proposed in this paper are compatible with the complementary metal-oxide-semiconductor (CMOS) fabrication technique. Benefitting from high sensitivity and a compact footprint, these sensors show great potential in the field of photonic-electronic applications.

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Section: Design Fabrication and Characterizationmentioning

confidence: 99%

Optical Temperature Sensor Based on Polysilicon Waveguides

Yin

Sun

et al. 2022

Sensors

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“…More compact channel spacing will cause more phase errors, which introduce larger crosstalk and insertion loss [15], [16]. There are some alternatives for WDM devices, such as cascaded Mach-Zehnder interferometers (MZIs) [17]- [20], bragg gratings [21], [22], as well as microring resonators (MRRs) [23]- [25]. Cascaded MZIs with low loss and low crosstalk is commonly applied to coarse wavelength division multiplexing (CWDM) [17], [26].…”

Section: Introductionmentioning

confidence: 99%

“…There are some alternatives for WDM devices, such as cascaded Mach-Zehnder interferometers (MZIs) [17]- [20], bragg gratings [21], [22], as well as microring resonators (MRRs) [23]- [25]. Cascaded MZIs with low loss and low crosstalk is commonly applied to coarse wavelength division multiplexing (CWDM) [17], [26]. However, the footprints of the cascaded MZIs are pretty large when the wavelength-channel spacing is small.…”

Section: Introductionmentioning

confidence: 99%

A 32-Channel C-Band Hybrid Wavelength/ Polarization Division (de)multiplexer on Silicon

Yin

Huang

et al. 2023

IEEE Photonics J.

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A 32-channel hybrid (de)multiplexer on silicon is designed and experimentally demonstrated to enable polarization division multiplexing (PDM) and wavelength division multiplexing (WDM) for improving the capacity of optical communication links. The hybrid (de)multiplexer is realized by monolithically integrating a polarization rotator and splitter (PRS) and two 16-channel microring resonators (MRRs) arrays. The through and cross ports of the PRS are connected to the bus waveguide of the MRR arrays, respectively. In order to ensure a larger free spectrum range (FSR) to cover all wavelength channels, the radius of the microring is about 3 µm and the wavelength-channel spacing is 1.6 nm. For the hybrid (de)multiplexer, the crosstalk between the adjacent channels and the non-adjacent channels are -20 dB and -25 dB, respectively. When TE0 mode input, the insertion loss is 1.5 dB -3.8 dB, the crosstalk between the through and cross port is less than -24 dB. When TM0 mode inputs, the insertion loss is 1.9 dB -4.5 dB and the polarization crosstalk is less than -22 dB. In order to eliminate the influence of the fabrication errors and temperature on resonance wavelength, a TiN thermal tuning electrode is added to calibrate the deviation of the wavelength.

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“…However, these multiplexers are based on wavelength interference theory, and thus suffering from wavelength sensitivity, low fabrication tolerance of subwavelength structures, and increased power losses arise from nonlinear effects while transmitting in silicon waveguides beyond threshold power. Moreover, thermal phase shifters are commonly utilized to compensate phase errors from fabrication process and temperature fluctuation, resulting in additional power consumption [6], [7].…”

Section: Introductionmentioning

confidence: 99%

Silicon-based multi-channel wavelength-division multiplexers for microring optical interconnects

Wu,

Xue,

Ren

et al. 2023

AOPC 2023: AI in Optics and Photonics

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Fabrication-Tolerant CWDM (de)Multiplexer Based on Cascaded Mach–Zehnder Interferometers on Silicon-on-Insulator

Cited by 49 publications

References 25 publications

Optical Temperature Sensor Based on Polysilicon Waveguides

Optical Temperature Sensor Based on Polysilicon Waveguides

A 32-Channel C-Band Hybrid Wavelength/ Polarization Division (de)multiplexer on Silicon

Silicon-based multi-channel wavelength-division multiplexers for microring optical interconnects

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