Up to 40 Gb/s Directly Modulated Laser Operating at Low Driving Current: Buried-Heterostructure Passive Feedback Laser (BH-PFL)

Kreissl, J.; Vercesi, Valeria; Troppenz, U.; Gaertner, Tom; Wenisch, W.; Schell, Martin

doi:10.1109/lpt.2011.2179530

Cited by 77 publications

(36 citation statements)

References 2 publications

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“…There is a new scheme based on the photon-photon resonance (PPR) effect for modulation bandwidth enhancement [2]- [7]. The PPR effect proceeds from the interaction between a lasing light and feedback light from an external cavity, and is observed on distributed Bragg reflector (DBR) lasers [2], [3] and external cavity lasers [4], [5]. A recent study showed a 3-dB bandwidth of 37 GHz was attained by introducing the PPR effect into a DFB laser.…”

Section: Introductionmentioning

confidence: 99%

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Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Mieda

Yokota

Kobayashi

et al. 2016

IEEE J. Quantum Electron.

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Modulation bandwidth enhancement of an optically controlled single-mode semiconductor laser is achieved by introducing an external cavity into the laser. A calculation based on a rate equation model shows that the 3-dB bandwidth of the optically controlled external cavity laser (OC-ECL) can be substantially enhanced by controlling the feedback light intensity and phase properly. A broad 3-dB bandwidth of 59 GHz is experimentally confirmed by using the fabricated OC-ECL. The results suggest that a combination of cross-gain modulation and photon-photon resonance is suitable to enhance the modulation bandwidth of semiconductor lasers.

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Section: Introductionmentioning

confidence: 99%

“…A recent study showed a 3-dB bandwidth of 37 GHz was attained by introducing the PPR effect into a DFB laser. It was also demonstrated that the laser could support non-return to zero (NRZ) signals with 40-Gbps link speed [5]. Figure 1(a) shows the schematic modulation frequency response of the DML.…”

Section: Introductionmentioning

confidence: 99%

Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Mieda

Yokota

Kobayashi

et al. 2016

IEEE J. Quantum Electron.

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“…The first laser tested was a 1549-nm pigtailed PFL which consisted of an active distributed feedback (DFB) section and a passive feedback section [17]. Exploiting the self-injection photonphoton resonance, a 3-dB modulation bandwidth of up to 34 GHz was reported for this laser.…”

Section: Methodsmentioning

confidence: 99%

“…Exploiting the self-injection photonphoton resonance, a 3-dB modulation bandwidth of up to 34 GHz was reported for this laser. The laser gain section was biased at 60 mA and the feedback section current was 1.8 mA, simultaneously providing both a small chirp and a flat modulation response [17]. The RF drive signal was amplified to a peak-to-peak voltage of 2.5 V using a 10-GHz bandwidth RF amplifier.…”

Section: Methodsmentioning

confidence: 99%

“…In Section II we discuss our experimental setup. To evaluate limitations due to the modulation chirp and optical noise, we compare the results obtained with a LiNbO3 Mach-Zehnder modulator (MZM) with two monolithic (and thus potentially low-cost) directlymodulated lasers: a passive feedback laser (PFL) [17] (modulation bandwidth of 34 GHz), and a discrete mode laser (DML) [18,19] (modulation bandwidth of 8.6 GHz). We test them in repeater-less transmission experiments through up to 150 km of SMF-28.…”

Section: Introductionmentioning

confidence: 99%

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Discrete Multitone Format for Repeater-Less Direct-Modulation Direct-Detection Over 150 km

Liu

Kelly

O’Carroll

et al. 2016

J. Lightwave Technol.

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-High-capacity and low-cost repeater-less transmission beyond 50 km is of interest for the next-generation inter-data center communications. Transmission over such relatively long distance generally requires transmission in the 1550-nm low-loss telecom band that is, however, impaired by chromatic dispersion. Here, we study the performance of the direct modulation direct detection (DM-DD) system using the discrete multi-tone (DMT) format for repeater-less transmission through up to 150 km of a standard single mode fiber (SMF-28) using the 1550-nm band. The achievable capacity for two different types of directly modulated lasers is studied experimentally and compared with that achievable using chirp-free modulation using a push-pull LiNbO3 Mach-Zehnder external modulator (MZM). The benefit of using a larger bandwidth signal is found to diminish as the transmission distance increases. 28 and 25 Gbit/s signal transmission (Bit Error Ratio, BER < 3.8×10 -3 ) over 50 km and 75 km are achieved using just 8-GHz modulation-bandwidth.

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Polymer Photonic Devices

Zhang

Keil

2015

Nanomaterials, Polymers, and Devices

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Up to 40 Gb/s Directly Modulated Laser Operating at Low Driving Current: Buried-Heterostructure Passive Feedback Laser (BH-PFL)

Cited by 77 publications

References 2 publications

Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Ultra-Wide-Bandwidth Optically Controlled DFB Laser With External Cavity

Discrete Multitone Format for Repeater-Less Direct-Modulation Direct-Detection Over 150 km

Polymer Photonic Devices

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