Fast wavelength switching in interleaved rear reflector laser

Engelstaedter, J.P.; Roycroft, B.; Peters, Frank; Corbett, Brian

doi:10.1109/iciprm.2010.5516237

Cited by 7 publications

(3 citation statements)

References 4 publications

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“…The concept of optical frequency hopping, essential for THz communications, can be effectively realized through the adjustment of tunable light sources. Advanced research in this field [18][19][20][21][22][23][24][25][26][27][28][29] has highlighted the tunable distributed feedback laser array (TLA) as a particularly suitable technology for next-generation optical networks. This is attributed to its capability for no mode-hopping and a relatively simple DFB design.…”

Section: Conception Of Tla-driven Thz Frequency Hoppingmentioning

confidence: 99%

Demonstration of THz frequency hopping in the 300 GHz band based on UTC-PD and tunable DFB laser array

Li,

Ye,

Che

et al. 2024

Jpn. J. Appl. Phys.

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We explored the potential of an optoelectronic frequency hopping system within the 300 GHz band, leveraging a tunable distributed feedback (DFB) laser array and uni-traveling carrier photodiode (UTC-PD). Our experiments successfully achieved a 10-channel terahertz (THz) frequency hopping, marking a significant advancement in THz secure communication technologies. Notably, the system exhibited a rapid frequency-hopping capability with a short transition time of 0.8 ms between channels, ranging from 288 GHz to 331 GHz. Further, we conducted data transmission tests at a rate of 5 Gbit/s across several channels. The results were promising, showing each channel maintained a clear eye pattern and a low bit error rate, crucial factors for reliable and secure data transmission. These findings not only demonstrate the efficacy of our system but also open new avenues for high-speed, secure THz communication.

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Section: Conception Of Tla-driven Thz Frequency Hoppingmentioning

confidence: 99%

Demonstration of THz frequency hopping in the 300 GHz band based on UTC-PD and tunable DFB laser array

Li,

Ye,

Che

et al. 2024

Jpn. J. Appl. Phys.

View full text Add to dashboard Cite

show abstract

“…This can be achieved at sub-ns level, making this system feasible for packet level operation. If tunable lasers are used, the switching speed will then be determined by both the laser on/off speed and tuning speed, which can also be realized at ns level [18].…”

Section: Dcn Architecture Featuresmentioning

confidence: 99%

Energy efficient flexible-bandwidth OFDM-based data center network

Kachris

Ji²,

Wang³

et al. 2012

2012 IEEE 1st International Conference on Cloud Networking (CLOUDNET)

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Cloud computing have created the need for more powerful data centers that can face the growing data traffic. These data centers need high bandwidth interconnects that can sustain the high network traffic inside the data center network. Optical interconnects have gained attention recently as a promising energy efficient solution offering high throughput, low latency and reduced energy consumption compared to current networks based on commodity switches. In this paper, we examine the energy consumption of a novel data center network architecture based on cyclic arrayed waveguide grating device and multipleinput multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) technology. The proposed architecture is compared with a reference design based on commodity electrical switches and it is shown that the proposed scheme can provide up to 25% lower power consumption.

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“…3,4) For example, next-generation passive optical network 2 (NG-PON 2) requires sub-second timescale wavelength tunable lasers to minimize the network delay. [5][6][7] To date, several kinds of high-speed tunable lasers have been developed [8][9][10][11][12][13][14][15][16][17][18][19][20][21][22] However, these lasers have some drawbacks, such as poor single-mode stability and the need for a complex fabrication process. Tunable distributed feedback (DFB) laser array (TLA) is suitable for the nextgeneration optical network because of free mode-hopping and a relatively simple DFB design.…”

Section: Introductionmentioning

confidence: 99%

Strategy of full-C-band fast wavelength switching and aging mitigation at tunable DFB laser array with current/temperature cooperative control

Chen

Ibrahim

et al. 2022

Jpn. J. Appl. Phys.

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We proposed a current/temperature cooperative control to solve the problem of laser aging in the conventional fast wavelength switching method when injecting a larger current at the tunable distributed feedback (DFB) laser array (TLA). Previously, we demonstrated a 400-GHz-wide uni-directional switching at a single DFB laser in the TLA with the cooperative control, which switched fastly and retarded laser aging. For large-scale optical communication systems, we have improved the cooperative control method and expanded its application scenarios. In this paper, we not only proposed and achieved bi-directional wavelength switching with cooperative control at a single DFB laser but also realized bi-directional wavelength switching with cooperative control covering full-C-band at two DFB lasers of the TLA. We demonstrated that the switching time is less than 200 ms and estimated that the TLA’s lifetime is improved by more than 40 times.

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Fast wavelength switching in interleaved rear reflector laser

Cited by 7 publications

References 4 publications

Demonstration of THz frequency hopping in the 300 GHz band based on UTC-PD and tunable DFB laser array

Demonstration of THz frequency hopping in the 300 GHz band based on UTC-PD and tunable DFB laser array

Energy efficient flexible-bandwidth OFDM-based data center network

Strategy of full-C-band fast wavelength switching and aging mitigation at tunable DFB laser array with current/temperature cooperative control

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