Vertical-cavity surface-emitting laser with a liquid crystal external cavity [PDF]
, 2013 We have developed a technology to integrate a thin layer of liquid crystal (LC) on top of a Vertical-Cavity Surface-Emitting Laser (VCSEL). Based on this technology, we demonstrate VCSELs with a chiral liquid crystal (CLC) layer, which acts as a tuneable
Beeckman, Jeroen +3 more
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First vertical-cavity surface-emitting laser made entirely in Poland [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2021 The paper presents the first vertical-cavity surface-emitting lasers (VCSELs) designed, grown, processed and evaluated entirely in Poland. The lasers emit at »850 nm, which is the most commonly used wavelength for short-reach (
Marcin Gębski +9 more
doaj +1 more source
Chirp-based direct phase modulation of VCSELs for cost-effective transceivers [PDF]
, 2017 A 2.5Gb/s DPSK transmitter based on direct phase modulation of a VCSEL using its own chirp is proposed. The VCSEL, which wavelength is 1539.84nm, has been characterized both static and dynamically.
Altabas, Jose Antonio +3 more
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Low Thermal Crosstalk 808-nm VCSEL Arrays With Nonlinear Mesa Configuration
IEEE Photonics Journal, 2018 In this paper, we demonstrated vertical-cavity surface-emitting laser (VCSEL) arrays with improved thermal stability by arranging the mesa distribution within the array in a nonlinear configuration.
Chuyu Zhong +4 more
doaj +1 more source
Buried heterostructure vertical-cavity surface-emitting laser with semiconductor mirrors [PDF]
, 2012 We report a buried heterostructure vertical-cavity surface-emitting laser fabricated by epitaxial regrowth over an InGaAs quantum well gain medium. The regrowth technique enables microscale lateral confinement that preserves a high cavity quality factor (
Deppe, D. G. +4 more
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Electro-Optical Co-Design of Power-Efficient 100-Gbps/λ VCSEL Transmitter
IEEE Photonics Journal, 2019 In this paper, we propose a comprehensive electro-optical co-design framework for power-efficient high-speed VCSEL transmitter targeting at 50 Gbaud. The framework integrates a rate-equation based VCSEL chip model and driver circuit models.
Chenyu Liang, Wenjia Zhang, Zuyuan He
doaj +1 more source
High-Speed and High-Power 940 nm Flip-Chip VCSEL Array for LiDAR Application
Crystals, 2021 In this paper, we demonstrate the design and fabrication of a high-power, high-speed flip-chip vertical cavity surface emitting laser (VCSEL) for light detection and ranging (LiDAR) systems.
Kuo-Bin Hong +7 more
doaj +1 more source
A fully bidirectional 2.4-GHz Wireless-Over-Fiber system using Photonic Active Integrated Antennas (PhAIAs) [PDF]
, 2007 This paper describes a low-cost scheme for implementing in-building distributed antenna systems using the photonic-active-integrated-antenna (PhAIA) concept, whereby photonic devices are integrated directly with planar antennas.
Cryan, MJ, Sittakul, V
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Spin Laser Local Oscillators for Homodyne Detection in Coherent Optical Communications
Micromachines, 2021 We numerically investigate spin-controlled vertical-cavity surface-emitting lasers (spin-VCSELs) for local oscillators, which are based on an injection locking technique used in coherent optical communications.
Nobuhide Yokota, Hiroshi Yasaka
doaj +1 more source
Ultrafast circular polarization oscillations in spin-polarized vertical-cavity surface-emitting laser devices [PDF]
, 2010 Spin-polarized lasers offer new encouraging possibilities for future devices. We investigate the polarization dynamics of electrically pumped vertical-cavity surface-emitting lasers after additional spin injection at room temperature.
Ackemann, T. +5 more
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