High-peak-power vertical-cavity surface-emitting laser quasi-array realized using optimized large-aperture single emitters

Zhang, Jianwei; Ning, Yin; Zhang, Xing; Zhang, Jian; Zeng, Yugang; Shan, X N; Qin, Li; Wang, Lijun

doi:10.7567/jjap.53.070303

Cited by 5 publications

(3 citation statements)

References 17 publications

(23 reference statements)

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“…Large optical output powers have been attained by building simultaneously-addressed arrays of VCSELs on common substrates or on multiple substrates. 7,8 These arrayed devices are usually designed for low modulation bandwidth. The primary limiting factor is additive bulk capacitance when the individual VCSEL devices are combined into an array for parallel operation.…”

Section: Vcsel Array Technologymentioning

confidence: 99%

High-speed and scalable high-power VCSEL arrays and their applications

Warren¹,

Carson²,

Joseph³

et al. 2015

SPIE Proceedings

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A unique architecture for two-dimensional arrays of VCSELs that allow for simultaneous high-power output and highbandwidth modulation has been developed for a variety of applications. The arrays use integrated micro-lenses for beam shaping and control, and to enable incoherent beam combining to make compact, high-brightness sources with low coherence noise. The fabrication and performance of the laser arrays are reviewed and sample applications are discussed. VCSEL ARRAY TECHNOLOGYVertical Cavity Surface Emitting Lasers (VCSELs) have been used in short-wavelength multi-mode fiber optic communications systems for over twenty years. Individual devices have achieved efficient operation with modulation speeds in excess of 40 Gb/s at both the 850 nm and 980 nm wavelengths. 1,2 VCSELs have also been shown to be effective and robust in extreme temperature and radiation environments. 3,4 Large 2D arrays of VCSELs have been used as illuminators and for industrial thermal processing. 5,6 Single VCSEL devices generally operate at optical output powers of several mW, especially when designed for data rates of 10 Gb/s or higher. Large optical output powers have been attained by building simultaneously-addressed arrays of VCSELs on common substrates or on multiple substrates. 7,8 These arrayed devices are usually designed for low modulation bandwidth. The primary limiting factor is additive bulk capacitance when the individual VCSEL devices are combined into an array for parallel operation.Previously, we described a back-emitting VCSEL array technology that is scalable to >100 mW in power output, yet can be modulated at up to 10 Gb/s. 9 Here we present results that apply to the use of this approach in two-dimensional VCSEL arrays for short range NIR illumination and 3D flash LIDAR.

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Section: Vcsel Array Technologymentioning

confidence: 99%

High-speed and scalable high-power VCSEL arrays and their applications

Warren¹,

Carson²,

Joseph³

et al. 2015

SPIE Proceedings

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“…9) Subsequently, our team increased the 980 nm VCSEL single-emitter laser power to 92 W 10) and the VCSEL array laser power to 123 W. 11) In addition, the output power was increased to 210 W using four single emitters in a series structure. 12) Although the 980 nm VCSEL achieved high laser power levels, the wavelength is unsuitable for the LIDAR system needed for intelligent driving. The 910 nm laser source is currently used in LIDAR to reduce water vapor absorption in the environment.…”

mentioning

confidence: 99%

910 nm vertical-cavity surface-emitting laser arrays with 100 W output power level and low driving current

Zhang

Hofmann

et al. 2018

Jpn. J. Appl. Phys.

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In this paper, we present monolithic 910 nm high-power vertical-cavity surface-emitting laser (VCSEL) arrays with addressable sectors suitable for long-distance light detection and ranging (LIDAR). The peak output power of a single VCSEL array (163 devices) reaches 25.5 W under 30-nspulse operation. The peak power of the larger sectored 2'2 VCSEL array reaches 100 W at an operating current of 55 A. To the best of our knowledge, this is the first report on achieving a 100 W output power level with a 910 nm VCSEL array at such a low driving current. Our VCSEL array shows stable impulse response characteristics and uniform far-field spot morphology.

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“…Higher optical output powers have been attained by building simultaneously-addressed arrays of VCSELs on common substrates or on multiple substrates. 6,7 These arrayed devices are usually limited in modulation bandwidth due to the additive bulk capacitance properties when the arrays of devices are combined.…”

mentioning

confidence: 99%

Compact VCSEL-based laser array communications systems for improved data performance in satellites

Carson¹,

Warren²,

Joseph³

et al. 2014

SPIE Proceedings

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Compact, radiation-hardened free-space optical data links are enabled by two-dimensional VCSEL arrays that can be modulated at high data rates while being scaled to produce high power levels. The combination of high modulation speed and scalability of power is enabled by the use of arrays which are flip-chip mounted onto sub-mounts that contain electrical strip line waveguides to provide an impedance match for the VCSELs. For laser wavelengths in the 910 nm to 1020 nm range, the lasers can be back-emitting through the GaAs substrate, which enables the use of etched microlenses to manipulate the beams from the individual elements. This approach of using VCSELs in arrays is inherently reliable and radiation-hard. The resulting free space optical data links are particularly advantageous for space-borne applications where size, weight, and power are important factors. Performance characterization of links constructed with these lasers demonstrates their suitability for short distance to medium distance data transfer at up to 10 Gb/s.

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High-peak-power vertical-cavity surface-emitting laser quasi-array realized using optimized large-aperture single emitters

Cited by 5 publications

References 17 publications

High-speed and scalable high-power VCSEL arrays and their applications

High-speed and scalable high-power VCSEL arrays and their applications

910 nm vertical-cavity surface-emitting laser arrays with 100 W output power level and low driving current

Compact VCSEL-based laser array communications systems for improved data performance in satellites

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