High-power vertical-cavity surface-emitting lasers for solid-state laser pumping

Seurin, Jean-Francois; Xu, Guoyang; Miglo, Alexander; Wang, Qing; Leeuwen, Robert van; Xiong, Yan; Zou, W. X.; Li, Daizong; Wynn, J. D.; Khalfin, V.; Ghosh, Chuni

doi:10.1117/12.906864

Cited by 21 publications

(13 citation statements)

References 19 publications

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“…The model was based on design parameters that highly influence the laser system performance like energy transfer efficiency, beam overlap efficiency and output coupling reflectivity directly affecting the output power and the input threshold power. Seurin et al [90] discussed recent developments of kW-class VCSEL pumps, an emerging candidate as pumps for solid-state lasers. Whereas, nLIGHT′s proprietary diode laser design with external volume gratings for improving power conversion efficiency in DPSSLs and for enhancing TEM 00 power scaling; proved an attractive approach to pump the narrow 885 nm upper laser level of Nd:YAG laser and absorption band of Er:YAG laser at 1532 nm [91].…”

Section: Diode Pumped Solid State Lasersmentioning

confidence: 99%

Diode lasers: From laboratory to industry

Nasim

Jamil

2014

Optics & Laser Technology

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Section: Diode Pumped Solid State Lasersmentioning

confidence: 99%

Diode lasers: From laboratory to industry

Nasim

Jamil

2014

Optics & Laser Technology

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“…Lateral, adjacent placement of chips, and any optics, can instead use automated pick and place tools for a low cost packaging assembly solution. This modular approach has been recently used in a 4 kW cw pump module demonstration [8]. Recent work at FLIR includes connecting four VCSEL arrays in series to be used as a passively cooled 100 W miniature illuminator module, as shown in Fig.…”

Section: Current State Of the Artmentioning

confidence: 99%

Recent advances in high-power VCSEL arrays

Wang

Geske

Berdin

et al. 2012

2012 IEEE Photonics Society Summer Topical Meeting Series

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High power VCSEL arrays have experienced rapid growth and development. In this paper, we review the unique properties of VCSELs and present the progress that is making them very attractive for high power laser applications. INTRODUCTIONOver the past five to ten years, high-power vertical-cavity surface emitting laser (VCSEL) arrays have experienced rapid growth and development. Traditionally known for low-power applications such as short reach datacom links, recent work has shown VCSELs to be capable of high efficiencies and very high output powers. Coupled with that are the unique properties of VCSELs, such as circularly symmetric output beam, narrow spectral linewidth, and a low-cost fabrication model; high-power VCSEL arrays are becoming increasingly attractive for high-power laser applications such as solid-state pumping, welding, illumination, and printing, to name a few.The leading diode laser technology currently supplied to the marketplace is the edge-emitting laser (EEL), which boasts very high conversion efficiencies (60% -70%), and can be stacked to achieve kW-class power levels. While current VCSEL array efficiencies are typically <50%, other properties lend to potential improved system level performance and lower system level costs. This paper reviews the benefits of VCSELs and presents the current state of the art performance from VCSEL arrays.

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“…7 The advantages over the existing edge-emitter technology include simpler pump optics, reduced wavelength sensitivity to temperature, increased reliability, high temperature operation, and potential for lowcost manufacturing. High-power VCSEL arrays comprise thousands of low power high efficiency single VCSEL elements that emit in an intrinsically circular, spectrally narrow, low divergence beam.…”

Section: Vcsel Side-pumped Laser Gain Modulementioning

confidence: 99%

1W frequency-doubled VCSEL-pumped blue laser with high pulse energy

et al. 2015

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We report on a Q-switched VCSEL side-pumped 946 nm Nd:YAG laser that produces high average power blue light with high pulse energy after frequency doubling in BBO. The gain medium was water cooled and symmetrically pumped by three 1 kW 808 nm VCSEL pump modules. More than 1 W blue output was achieved at 210 Hz with 4.9 mJ pulse energy and at 340 Hz with 3.2 mJ pulse energy, with 42% and 36% second harmonic conversion efficiency respectively. Higher pulse energy was obtained at lower repetition frequencies, up to 9.3 mJ at 70 Hz with 52% conversion efficiency.Keywords: vertical-cavity surface-emitting laser, diode-pumped solid-state laser, blue laser, 808 nm, 2-D array, high power, high pulse energy, 946 nm.

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High-power vertical-cavity surface-emitting lasers for solid-state laser pumping

Cited by 21 publications

References 19 publications

Diode lasers: From laboratory to industry

Diode lasers: From laboratory to industry

Recent advances in high-power VCSEL arrays

1W frequency-doubled VCSEL-pumped blue laser with high pulse energy

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