850/940-nm VCSEL for optical communication and 3D sensing

Cheng, Chih‐Hsien; Shen, Chih-Chiang; Kao, Hsuan-Yun; Hsieh, Dan-Hua; Wang, Huai‐Yung; Yeh, Yen-Wei; Lu, Yun-Ting; Chen, Sung‐Wen Huang; Tsai, C.S.; Chi, Yu‐Chieh; Kao, Tsung Sheng; Wu, Chun-Feng; Kuo, Hao‐Chung; Lee, Po-Tsung; Lin, Gong‐Ru

doi:10.29026/oea.2018.180005

Cited by 49 publications

(19 citation statements)

References 44 publications

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“…A very significant issue concerning this work is the influence of the GVD on the pulse's shape depending on the sign of its chirp. More specifically, as it can be observed from (10), the pulse's amplitude, i.e. the value of B, depends strongly on the value of the chirp.…”

Section: Numerical Resultsmentioning

confidence: 93%

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Time Jitter, Turbulence and Chromatic Dispersion in Underwater Optical Wireless Links

et al. 2019

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The performance of an underwater optical wireless communication link is investigated by taking into account—for the first time and to the best of our knowledge—the simultaneous influence of the chromatic dispersion, the time jitter and the turbulence effects, by assuming chirped longitudinal Gaussian pulse propagation as information carriers. The estimation procedure is presented and a novel probability density function is extracted in order to describe the irradiance fluctuations at the receiver side. Furthermore, the availability of the link is investigated by means of its probability of fade and various numerical results are presented using typical parameters for the underwater optical wireless communication systems.

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Section: Numerical Resultsmentioning

confidence: 93%

“…Many recent theoretical and experimental works have been done in order to estimate the effectiveness of the transmitter/receivers, link, modulation formats, etc. that are used in these systems [1][2][3][4][5][6][7][8][9][10]. However, the performance of these systems is dominated by the characteristics of the medium, where the pulses are propagating.…”

mentioning

confidence: 99%

Time Jitter, Turbulence and Chromatic Dispersion in Underwater Optical Wireless Links

et al. 2019

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“…Although current MMF systems use multimode VCSELs, significant progress has been made in developing sing-mode VCSELs to overcome encoding bandwidth limitation of multimode VCSELs and to reduce chromatic dispersion effects in MMF links [10]. Single-mode operation in VCSELs can be achieved by reducing oxide aperture to support a smaller number of lasing modes and employing an integrated mode filter to suppress higher order modes.…”

Section: Single-mode Vcsels For 850 Nm Transmissionmentioning

confidence: 99%

Optical fiber for 1310nm single-mode and 850nm few-mode transmission

Chen

Hurley

et al. 2019

Broadband Access Communication Technologies XIII

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In this paper, we present an optical fiber that is single-mode at 1310 nm window and few-mode at 850 nm window with high bandwidth. The fiber is compatible with standard single-mode fiber at 1310 nm, which can meet long reach requirements for hyper-scale data centers. In addition, the fiber can be used for few-mode transmission at 850 nm using single-mode or few-mode VCSELs, providing low-cost solutions for short links. We discuss fiber design considerations and present fiber properties and 25 Gb/s transmission results at 850 nm.

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“…These advantages enable these materials to have many potential applications. On the other hand, compared to edge-emitting lasers and light-emitting diodes (LEDs), vertical-cavity surface-emitting lasers (VCSELs) have the superiority of low power consumption, circular beam shape, high modulation response, and low divergence angles [5][6][7][8]. Armed with these attributes, GaN-based VCSELs are destined to replace conventional LEDs and lasers as light sources in many applications, including optical storage, laser printers, projectors, displays, solid-state lighting, and visible light communications.…”

Section: Introductionmentioning

confidence: 99%

Design and Fabrication of the Reliable GaN Based Vertical-Cavity Surface-Emitting Laser via Tunnel Junction

Shen

Yeh

et al. 2019

Crystals

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In this study, we theoretically designed and experimentally fabricated an InGaN vertical-cavity surface-emitting laser (VCSEL) with a tunnel junction (TJ) structure. From numerical simulation results, the optical loss of the device can be reduced by a TJ structure. Additionally, the leakage current of the VCSEL with TJ structure was much smaller than that of the VCSEL with an Indium-Tin-Oxide (ITO) layer. We have been demonstrated that laser output performance is improved by using the TJ structure when compared to the typical VCSEL structure of the ITO layer. The output power obtained at 2.1 mW was enhanced by a factor of 3.5 by the successful reduction of threshold current density (Jth) from 12 to 8.5 kA/cm2, and the enlarged slope efficiency was due to less absorption in VCSEL with a TJ structure. Finally, the samples passed the high temperature (70 °C) and high operation current (1.5 × Jth) test for over 500 h.

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850/940-nm VCSEL for optical communication and 3D sensing

Cited by 49 publications

References 44 publications

Time Jitter, Turbulence and Chromatic Dispersion in Underwater Optical Wireless Links

Time Jitter, Turbulence and Chromatic Dispersion in Underwater Optical Wireless Links

Optical fiber for 1310nm single-mode and 850nm few-mode transmission

Design and Fabrication of the Reliable GaN Based Vertical-Cavity Surface-Emitting Laser via Tunnel Junction

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