VCSEL arrays expanding the range of high-power laser systems and applications

Pruijmboom, A.; Apetz, R.; Conrads, Ralf; Deppe, Carsten; Derra, Guenther; Gronenborn, Stephan; Gu, Xi; Kolb, Johanna; Miller, Michael; Moench, Holger; Ogiewa, Felix; Pekarski, Pavel; Pollmann‐Retsch, Jens; Weichmann, Ulrich

doi:10.2351/1.5063168

Cited by 8 publications

(12 citation statements)

References 3 publications

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“…Optical communication with near-infrared (NIR) light sources emerges to overcome the above-mentioned drawbacks [10,11]. Moreover, an unsurpassed lasing action from the surface-emitting laser, namely the vertical-cavity surface-emitting laser (VCSEL), was demonstrated in 1988, pushing forward in various applications with its unique characteristics and performance [12][13][14][15][16][17][18][19][20][21]. VCSELs exhibit great benefits compared to the LEDs, such as a symmetric beam profile with a narrow spectrum, a low threshold current with high fiber coupling efficiency, and a high modulation bandwidth [22].…”

Section: Introductionmentioning

confidence: 99%

Performance Analyses of Photonic-Crystal Surface-Emitting Laser: Toward High-Speed Optical Communication

Peng¹,

Cheng

Hong³

et al. 2022

Nanoscale Res Lett

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This study conducts comprehensive performance analyses of a commercial photonic-crystal surface-emitting laser (PCSEL) via small-signal measurement and the bit-error-rate test. Meanwhile, the radio frequency characteristics of the PCSEL are unveiled for the first time. Compared to the vertical-cavity surface-emitting lasers, the PCSEL shows great potential for a broader optical bandwidth that is benefited from the high optical-confinement factor. A maximum bandwidth of around 2.32 GHz is experimentally observed when the PCSEL was biased at 340 mA. Moreover, a theoretical calculation was applied to shed light on the characteristics of the small-signal measurement, providing a deep insight into the corresponding intrinsic response model. The signal transmission capability of the PCSEL was investigated as well. The maximum bit rate and corresponding rise time transmitted at 500 Mbps are 1.2 Gbps and 186.16 ps, respectively. Thus, a high-speed PCSEL can be realised with a shrunk form factor, serving as a promising candidate for the next-generation light sources in high-speed optical communication.

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Section: Introductionmentioning

confidence: 99%

Performance Analyses of Photonic-Crystal Surface-Emitting Laser: Toward High-Speed Optical Communication

Peng¹,

Cheng

Hong³

et al. 2022

Nanoscale Res Lett

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“…People have also made various strategies over time, transferring data or messages across the distance. Among these strategies, visual characteristics and performance [12][13][14][15][16][17][18][19][20][21]. VCSELs exhibit great benefits compared to the LEDs, such as a symmetric beam profile with a narrow spectrum, a low threshold current with high fiber coupling efficiency, and a high modulation bandwidth [22].…”

Section: Introductionmentioning

confidence: 99%

Performance Analyses of Photonic-Crystal Surface-Emitting Laser: Toward High-Speed Optical Communication

Peng¹,

Cheng

Hong³

et al. 2022

Preprint

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This study conducts comprehensive performance analyses of a commercial photonic-crystal surface-emitting laser (PCSEL) via small-signal measurement and the bit-error-rate test (BERT). Meanwhile, the radio frequency (RF) characteristics of the PCSEL are unveiled for the first time. Compared to the vertical-cavity surface-emitting lasers (VCSELs), the PCSEL shows great potential for a broader optical bandwidth that is benefited from the high optical-confinement factor. A maximum bandwidth of around 2.32 GHz is experimentally observed when the PCSEL was biased at 340 mA. Moreover, a theoretical calculation was applied to shed light on the characteristics of the small-signal measurement, providing a deep insight into the corresponding intrinsic response model. The signal transmission capability of the PCSEL was investigated as well. The maximum bit rate and corresponding rise time transmitted at 500 Mbps are 1.2 Gbps and 186.16 ps, respectively. Thus, a high-speed PCSEL can be realized with a shrunk form factor, serving as a promising candidate for the next-generation light sources in high-speed optical communication.

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“…This article presents the investigation of an alternative firing process. Based on the work in [3] from 2015, the peak phase is conducted in an alternative firing device instead of the conventional heat chamber, while the burnout phase still remains in the heat chamber. In this alternative peak zone, the wafer is heated by vertical cavity surface-emitting laser (VCSEL) modules [3] (further called "laser firing").…”

mentioning

confidence: 99%

“…Based on the work in [3] from 2015, the peak phase is conducted in an alternative firing device instead of the conventional heat chamber, while the burnout phase still remains in the heat chamber. In this alternative peak zone, the wafer is heated by vertical cavity surface-emitting laser (VCSEL) modules [3] (further called "laser firing"). Unlike the conventional IR lamps, the VCSEL modules are area emitters which heat the wafer through direct radiation.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Laser-Powered Co-Firing Process for Highly Efficient Si Solar Cells

Ourinson

Emanuel

Rahmanpour

et al. 2021

IEEE J. Photovoltaics

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This article presents a successful laser-powered cofiring process for highly efficient Si solar cells as a more compact and energy-efficient alternative to the conventional firing process in an infrared (IR) lamp-powered heat chamber. The best cell group reaches with laser firing only 0.1% abs lower cell efficiency compared to the best group with conventional firing, demonstrating the industrial potential of this laser firing technology. Adding the laser enhanced contact optimization (LECO) process after firing improves the cell efficiency for laser firing to the level of conventional firing, demonstrating the potential of the combination of the laser firing and the LECO process.

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VCSEL arrays expanding the range of high-power laser systems and applications

Cited by 8 publications

References 3 publications

Performance Analyses of Photonic-Crystal Surface-Emitting Laser: Toward High-Speed Optical Communication

Performance Analyses of Photonic-Crystal Surface-Emitting Laser: Toward High-Speed Optical Communication

Performance Analyses of Photonic-Crystal Surface-Emitting Laser: Toward High-Speed Optical Communication

Laser-Powered Co-Firing Process for Highly Efficient Si Solar Cells

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