A WDM/TDM Access Network Based on Broad T-Band Wavelength Resource Using Quantum Dot Semiconductor Devices

Idris, Nazirul Afham; Yamamoto, Naokatsu; Akahane, Kouichi; Yoshizawa, Kazuya; Tomomatsu, Yasunori; Sudo, Makoto; Hajikano, Tadashi; Kubo, Ryogo; Uesugi, Takehiko; Kikuchi, Toru; Tsuda, Hitoshi

doi:10.1109/jphot.2016.2520831

Cited by 14 publications

(7 citation statements)

References 19 publications

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“…Using the strain compensation technique, the 35-dB highest chip gain was achieved in QD-SOA with 25 stacked QD layers at 400-mA bias current [9] based on previous works [10][11]. In addition, QD-SOA can operate at very high bit rates up to 40 Gb/s and support several modulation formats, such as 8-PSK [5], 16-QAM [5,12], and PAM4 [6][7]. Also, the nonlinear effects like Cross Gain Modulation (XGM) and Four-Wave-Mixing (FWM) were applied in wavelength conversion up to 40 Gb/s bit rate [4][5][6][7], while the Cross Phase Modulation (XPM) effect was used in all-optical signal processing such as logic XOR & AND gates, 2x2 switches, and D flip-flop.…”

Section: Introductionmentioning

confidence: 91%

“…Reference [15] demonstrated the configurations of a bi-directional SOA at OLT: single SOA per downstream channel as a booster amplifier and a preamplifier SOA followed by avalanche photodiode, to give the best signal performance. In [16], QD-SOAs were applied in T-band (1000 -1260 nm) WDM/TDM access network, as path switches for self-restoring system because of fast response and power loss compensation. Also, QD-SOAs were used in GPON with 1.5μm downstream & 1.3-μm upstream transmissions to increase distance of 60 km and 32 users [17].…”

Section: Introductionmentioning

confidence: 99%

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Performances of Conventional SOAs Versus QD-SOA in 1530-nm Upstream Transmission of 40 Gb/s Access Network

et al. 2022

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SOA is the key device for burst-mode upstream transmission of 40 Gb/s access network to extend distance and increase users. We evaluate two conventional SOAs and our QD-SOA in networks, consisting of 20-km Single Mode Fiber (SMF) and splitters (1:8, 1:16 & 1:32). First, their characteristics are reported: 3-dB bandwidth & peak wavelength of Amplified Spontaneous Emission (ASE) spectra, gain, saturation output & input, and Noise Figure (NF). QD-SOA gives the lowest NF of 4.59 dB at -20-dBm input due to its highest Optical Signal to Noise Ratio (OSNR). It also has the fastest response time (70 ps) with less data pattern effect when operating in saturation region. Besides the measurement of Input Power Dynamic Range (IPDR) of 3 SOAs, their performances of single versus two-cascaded SOA transmissions are evaluated by Bit Error Rate (BER) in many combinations of SMF and splitters. In case of inserting 1:8 splitter between two-cascaded SOAs, the performance of 2 nd -stage QD-SOA has lower BERs than 2 nd -stage conventional SOA due to its higher saturation output and less pattern effect when operating at high input power. Finally, both experimental and computed BERs are plotted versus SOA's input to confirm the OSNR degradation and data pattern effect.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Performances of Conventional SOAs Versus QD-SOA in 1530-nm Upstream Transmission of 40 Gb/s Access Network

et al. 2022

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“…10-Gbit/s transmission experiments have been performed in the T-band over single-mode holey fibers, which cover the T-band [4,5] and simultaneous transmission was demonstrated in the T-, C-, and L-bands [5]. In addition, to realize a 1000-channel class wavelength routing system using the T-band and the adjacent O-band, we have developed T/O-band-specific quantum-dot wavelength tunable lasers (QD-WTLs), quantum-dot semiconductor optical amplifiers (QD-SOAs), and arrayed waveguide gratings (AWGs) [6,7]. We demonstrated 4K ultra-highdefinition (UHD) video transmission in the T-band [8] and 10-Gbit/s transmission using the subset of the 1081-channel AWG router, which covers the broad wavelength range of the T/O-band [9].…”

Section: Introductionmentioning

confidence: 99%

Demonstration of 10-Gbit/s transmission over G.652 fiber for T-band optical access systems using quantum-dot semiconductor devices

Kubo

Matsunaga

Shobudani

et al. 2018

IEICE Electron. Express

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The wavelength range of 1000-1260 nm, known as T-band, where T denotes "thousand", is one of the promising wavebands suitable for the future moderate-range optical networks. We have developed T-band specific semiconductor devices based on quantum-dot technology. However, the cutoff wavelength of optical fiber cables currently utilized in access networks, i.e., G.652 fibers, is specified to be less than 1260 nm. Therefore, the fibers do not fully support the T-band. This letter presents a demonstration of the feasibility of 10-Gbit/s transmission over G.652 fibers in the T-band by experiments.

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“…Several transmission demonstration exploiting the T-, C-, and L-bands using a single holey fiber were reported [1,2]. The main laser source for the T-band is based on quantum dot (QD) semiconductor and several broadband laser sources for this band has been demonstrated [3,4,5,6]. Several demonstrations of QD semiconductor optical amplifiers have also been reported [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…The main laser source for the T-band is based on quantum dot (QD) semiconductor and several broadband laser sources for this band has been demonstrated [3,4,5,6]. Several demonstrations of QD semiconductor optical amplifiers have also been reported [5,6]. Furthermore, a full-mesh interconnected wavelength router supporting the entire T-and O-bands was also reported [5].…”

Section: Introductionmentioning

confidence: 99%

6.4-THz-spacing, 10-channel cyclic arrayed waveguide grating for T- and O-band coarse WDM

Idris

Tsuda

2016

IEICE Electron. Express

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A 6.4-THz-spaced 10 × 10 cyclic arrayed waveguide grating (AWG) supporting 64 THz of bandwidth of the T-and O-bands is designed and fabricated. Cyclic operation was realized using only one diffraction order by combining an AWG with double the number of output waveguides and an array of 2 × 1 couplers. The maximum passband peak deviation of the AWG is around 32% of its channel spacing. Such AWG would be useful for coarse T-band applications or for waveband routing in a cascaded AWG configuration.

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A WDM/TDM Access Network Based on Broad T-Band Wavelength Resource Using Quantum Dot Semiconductor Devices

Cited by 14 publications

References 19 publications

Performances of Conventional SOAs Versus QD-SOA in 1530-nm Upstream Transmission of 40 Gb/s Access Network

Performances of Conventional SOAs Versus QD-SOA in 1530-nm Upstream Transmission of 40 Gb/s Access Network

Demonstration of 10-Gbit/s transmission over G.652 fiber for T-band optical access systems using quantum-dot semiconductor devices

6.4-THz-spacing, 10-channel cyclic arrayed waveguide grating for T- and O-band coarse WDM

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