Fully integrated 3-bit all-optical analog to digital converter based on photonic crystal semiconductor optical amplifier

Moshfe, Sajjad; Abedi, Kambiz; Moravvej-Farshi, Mohammad Kazem

doi:10.1016/j.optlastec.2021.107773

Cited by 4 publications

(5 citation statements)

References 45 publications

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“…In 2022, a fully integrated PhC-SOA based 3-bit all-optical analog to digital converter was designed with an InP/InGaAsP/InP heterostructure at 10 Gbps. 10,11 The design consisted of eight channel drop filters created over an InGaAsP platform. A probe signal displayed a 4.8-nm wavelength shift when traveling through a 9-m-long PhC-SOA in the vicinity of an amplitude-modulated Gaussian pulse with a maximum energy of 37.2 fJ and a width of 1.422 ps.…”

Section: Related Workmentioning

confidence: 99%

“…The obtained results showed that optimal output characteristics were achieved at 50 Gbps with a 2-mA injection current and 3 fJ energy. In 2022, a fully integrated PhC-SOA based 3-bit all-optical analog to digital converter was designed with an InP/InGaAsP/InP heterostructure at 10 Gbps 10 , 11 . The design consisted of eight channel drop filters created over an InGaAsP platform.…”

Section: Introductionmentioning

confidence: 99%

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Design and analysis of Tbps all-optical gray code converter using photonic crystal-semiconductor optical amplifier-Mach–Zehnder interferometric structure

Caroline¹,

Michael²,

Nizar³

et al. 2023

Opt. Eng.

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Future communication networks require the entire communication system to be all-optical to overcome the bandwidth constraints of electronics. All-optical devices play a vital role in supporting future networks, which demand a high speed of up to Tbps. An all-optical gray code converter operation was demonstrated numerically using a photonic crystal semiconductor optical amplifier (PhC-SOA) in a Mach-Zehnder interferometric (MZI) configuration at 1 Tbps for M-ary differential phase shift keying modulated binary and BCD inputs. The design achieved a very high extinction ratio of about 123.8 dB with a good quality factor value of about 45. The results show that PhC-SOA-based XOR and OR gates in the gray code converter design exhibits improved modulation features compared with traditional SOAs in our previous works.

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design and analysis of Tbps all-optical gray code converter using photonic crystal-semiconductor optical amplifier-Mach–Zehnder interferometric structure

Caroline¹,

Michael²,

Nizar³

et al. 2023

Opt. Eng.

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“…A Shorter pulsewidth is hardly dropped by the PhC-CDFs resulting in generating a lower output power. According to the typical quality factor of single-point defect resonators (Moshfe et al 2022) in PhC, the optimized value for the input pulsewidth is 10 ps. That means that is sufficiently short to be chirped as well as sufficiently long to be dropped.…”

Section: The Proposed Biosensormentioning

confidence: 99%

“…For the given structure in Fig. 1 and the parameters in Table . I, a single mode dispersion in the 0.23<a/λ<0.25 interval exists for the W1-bus waveguide (Moshfe et al 2022). Near the band edge, the group index is increased and therefore performance of a PhC-SOA is analogous to that of a conventional SOA with a shorter length (L), although with a large radiation loss.…”

Section: Active Waveguide Group Indexmentioning

confidence: 99%

“…To detect the amount of the group index change, we integrate the line defect PhC waveguide into an SOA (Mizuta et al 2006). This integration has resulted in a new generation of SOAs called PhC-SOAs that is suitable for photonic integrated circuits (Moshfe et al 2021(Moshfe et al , 2022Taleb,Abedi 2014). By this integration, we can amplify an ultra-short pulse where it will be chirped at the output depending on the group index of the waveguide.…”

Section: Introductionmentioning

confidence: 99%

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A PhC-SOA based cancerous cell detection biosensor

Moshfe

Zarei

2023

Preprint

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In this paper, we present a novel method to design an ultra-small photonic integrated biosensor to detect cancerous cells. The proposed biosensor is based on the self-phase modulation in PhC-SOA, inducing a frequency shift on a pulse traveling through the device. The amount of the frequency chirp depends on the group velocity of the active medium waveguide being determined by the refractive index of the microfluidic infiltrating the holes around the waveguide. The refractive index of the microfluidic is also determined by the cell type that can be normal or cancerous. Since the refractive index of a cancerous cell is higher than that of a normal one, the group index of the waveguide and the output chirp will decrease. By measuring the amount of the output chirp, we can detect the cell type. The Simulation results showed that for a 0.02 change in the refractive index of the cell, a 3.71 nm central wavelength shift occurred for a 10-ps 71-mW gaussian pulse input with a central wavelength of 1533.53876 nm. In terms of the wavelength shift, the sensitivity and figure of merit are 185.5 and 530, respectively. To detect the cell type, we integrated a PhC channel drop filter to drop the chirped signal due to the cancerous cell infiltration. Designing an appropriate PhC-CDF leads to achieving an ultra-small cancerous detection cell biosensor with more than 97% precision.

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A PhC-SOA based cancerous cell detection biosensor

Moshfe

Zarei

2023

Opt Quant Electron

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Fully integrated 3-bit all-optical analog to digital converter based on photonic crystal semiconductor optical amplifier

Cited by 4 publications

References 45 publications

Design and analysis of Tbps all-optical gray code converter using photonic crystal-semiconductor optical amplifier-Mach–Zehnder interferometric structure

Design and analysis of Tbps all-optical gray code converter using photonic crystal-semiconductor optical amplifier-Mach–Zehnder interferometric structure

A PhC-SOA based cancerous cell detection biosensor

A PhC-SOA based cancerous cell detection biosensor

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