Design and Analysis of Enhanced Modulation Response in Integrated Coupled Cavities DBR Lasers Using Photon-Photon Resonance

Bardella, Paolo; Chow, Weng W.; Montrosset, Ivo

doi:10.3390/photonics3010004

Cited by 16 publications

(10 citation statements)

References 33 publications

(52 reference statements)

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“…We present the small signal response including the bandwidth enhancement and chirp reduction dependent on the coupling parameters and the coupling phase tolerance. The bandwidth enhancement and chirp reduction can be explained by the increased frequency of carrier-photon resonance (CPR) due to detuned-loading effect [18,19], and additionally the photon-photon resonance (PPR) at a frequency higher than CPR due to beating between different modes in coupled cavities [20][21][22][23][24][25]. We also present a comparison between the Lang-Kobayashi model and coupled mode model.…”

Section: Introductionmentioning

confidence: 99%

Coupled mode analysis of high-speed transverse coupled cavity vertical-cavity surface-emitting laser for low frequency chirp operations

Koyama

2021

IEICE Electron. Express

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We demonstrate the modeling and experimental results on the modulation bandwidth and frequency chirp of the transverse coupled cavity vertical-cavity surface-emitting lasers (TCC-VCSELs). Both a 3-dBmodulation bandwidth enhancement and chirp reduction are shown in the results. These improvements could be explained by an increase in differential net gain and photon-photon resonance introduced by strong coupling in coupled cavities. Our TCC VCSEL could be useful for higher data rates and longer link lengths of single-mode fiber transmissions.

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Section: Introductionmentioning

confidence: 99%

Coupled mode analysis of high-speed transverse coupled cavity vertical-cavity surface-emitting laser for low frequency chirp operations

Koyama

2021

IEICE Electron. Express

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“…Thus, with an opportune design of the active region and RC-parasitic, which shunts the modulation current outside the active region at high frequencies, a high modulation bandwidth can be achieved. Optical feedback has proven to increase the modulation bandwidth of VCSELs, due to an induced photon-photon resonance (PPR) effect [14][15][16][17] . Dalir et al [18,19] demonstrated modulation bandwidth enhancement of the VCSEL via adding a single transverse-coupled-cavity (TCC) to a primary VCSEL cavity.…”

Section: Introductionmentioning

confidence: 99%

Hexagonal transverse-coupled-cavity VCSEL redefining the high-speed lasers

Heidari

Dalir

Ahmed³

et al. 2020

Nanophotonics

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Vertical-cavity surface-emitting lasers (VCSELs) have emerged as a vital approach for realizing energy-efficient and high-speed optical interconnects in the data centers and supercomputers. Indeed, VCSELs are the most suitable mass production lasers in terms of cost-effectiveness and reliability. However, there are still key challenges that prevent achieving modulation speeds beyond 30s GHz. Here, we propose a novel VCSEL design of a hexagonal transverse-coupled-cavity adiabatically coupled through a central cavity. Following this scheme, we show a prototype demonstrating a 3-dB roll-off modulation bandwidth of 45 GHz, which is five times greater than a conventional VCSEL fabricated on the same epiwafer structure. This design harnesses the Vernier effect to increase the laser’s aperture and therefore is capable of maintaining single-mode operation of the laser for high injection currents, hence extending the dynamic roll-off point and offering increases power output. Simultaneously, extending both the laser modulation speed and output power for this heavily deployed class of lasers opens up new opportunities and fields of use ranging from data-comm to sensing, automotive, and photonic artificial intelligence systems.

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“…11,12) In a semiconductor laser coupled with a feedback cavity, the PPR effect is derived by the external feedback cavity. 13) This second high-frequency peak is manifested as a RM peak beyond the bandwidth of the solitary laser, which is determined by the intrinsic carrierphoton resonance (CPR). The authors showed that OFB from a short-coupled-cavity has the potential of inducing PPR manifested as RM over a narrow passband even far beyond the bandwidth frequency.…”

Section: Introductionmentioning

confidence: 99%

Regimes of bandwidth enhancement in coupled-cavity semiconductor laser using photon–photon resonance

Alghamdi

Dalir

Bakry

et al. 2019

Jpn. J. Appl. Phys.

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In the last decade, different solutions were proposed to boost the transmission bitrate of semiconductor lasers. Here, we focus on applying optical feedback to a semiconductor laser from an external cavity in order to induce enhancement of the modulation bandwidth up to 50 GHz as well as resonant modulation (RM) around frequencies approaching 60 GHz. High-speed modulation up to 90 Gbps under none-return to zero operation and a 45 Gbaud using pulse amplitude modulation-4 signals are predicted. Both types of improving the modulation performance of the laser are attributed to the photon–photon resonance (PPR) effect. The regimes of the external power reflectivity that correspond to both types of modulation response are specified. Comprehensive simulations are introduced to correlate the PPR frequency to the RM frequencies of the non-modulated coupled-cavity laser. Dependencies of the enhanced BW and PPR frequency on the cavity length and bias current are elucidated.

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Design and Analysis of Enhanced Modulation Response in Integrated Coupled Cavities DBR Lasers Using Photon-Photon Resonance

Cited by 16 publications

References 33 publications

Coupled mode analysis of high-speed transverse coupled cavity vertical-cavity surface-emitting laser for low frequency chirp operations

Coupled mode analysis of high-speed transverse coupled cavity vertical-cavity surface-emitting laser for low frequency chirp operations

Hexagonal transverse-coupled-cavity VCSEL redefining the high-speed lasers

Regimes of bandwidth enhancement in coupled-cavity semiconductor laser using photon–photon resonance

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