High-efficiency midinfrared “W” laser with optical pumping injection cavity

Felix, C. L.; Bewley, W. W.; Vurgaftman, I.; Olafsen, L. J.; Stokes, D. W.; Meyer, J. R.; Yang, M. J.

doi:10.1063/1.125176

Cited by 34 publications

(18 citation statements)

References 14 publications

(6 reference statements)

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“…efficiency at 125 K is 1.25%, and the falloff with temperature is similar to that observed in the earlier OPIC and non-OPIC devices, 12 reaching approximately 0.22% at 300 K. The efficiencies at the lowest temperatures are not as high as expected when measured with respect to values above 150 K. At the lowest temperatures, the pump pulse lengths may become shorter than the radiative lifetimes in the OPIC laser.…”

Section: Discussionsupporting

confidence: 55%

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Resonantly pumped optical pumping injection cavity lasers

McAlpine

Greene

Santilli

et al. 2004

Journal of Applied Physics

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An optical parametric oscillator is tuned to the resonance wavelength of the etalon in an optical pumping injection cavity (OPIC) laser with a type-II "W" active region, thereby minimizing the threshold pump intensity and maximizing the output slope efficiency. Previous OPIC experiments employed fixed-wavelength sources with only limited tuning available by adjusting the incident angle. Low threshold pump intensities of 330 W / cm 2 at 100 K and 14 kW/ cm 2 at 300 K (where the output wavelength is 3200 nm) were achieved. The energy conversion efficiency is found to decrease by over a factor of 100 when the pump wavelength is tuned from the resonance condition (1822 nm at 300 K) to only slightly off resonance (e.g., 1808 nm).

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Section: Discussionsupporting

confidence: 55%

“…Another successful approach has been the optical pumping injection cavity (OPIC) laser, 12,13 in which the active region is enclosed between two GaSb/ AlAsSb-distributed Bragg reflector (DBR) mirrors that induce multiple passes of the pump beam. A schematic is shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Resonantly pumped optical pumping injection cavity lasers

McAlpine

Greene

Santilli

et al. 2004

Journal of Applied Physics

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“…Since ternary AlAs x Sb 1Ϫx or quaternary Al x Ga 1Ϫx As y Sb 1Ϫy can provide alternative injection regions, 4 it is important to determine the thermal conductivity for those alloys. A second configuration of interest is the ''digital alloy'' 29,30 , in which a͒ Author to whom correspondence should be addressed; electronic mail: borcat@rpi.edu constituent layers may be as thin as 1 monolayer ͑ML͒. One must be concerned by the general decrease of the thermal conductivity with decreasing superlattice period that most GaAs/Al͑Ga͒As experiments have observed.…”

Section: Introductionmentioning

confidence: 99%

Thermal conductivity of AlAs0.07Sb0.93 and Al0.9Ga0.1As0.07Sb0.93 alloys and (AlAs)1/(AlSb)11 digital-alloy superlattices

Borca‐Tasciuc

Song

Meyer

et al. 2002

Journal of Applied Physics

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A differential 3 technique is employed to determine the thermal conductivity of the AlAs 0.07 Sb 0.93 ternary alloy, the Al 0.9 Ga 0.1 As 0.07 Sb 0.93 quaternary alloy, and an (AlAs) 1 /(AlSb) 11 digital-alloy superlattice. Between 80 and 300 K, the thermal conductivities for all three samples are relatively insensitive to temperature. The thermal conductivity of the (AlAs) 1 /(AlSb) 11 superlattice is smaller than that of the AlAs 0.07 Sb 0.93 ternary alloy, but much larger than the predictions of a model for phonon transport across the superlattice interfaces.

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“…2,4,5 The unit structures can be periodically repeated to form a superlattice with an extended optically active region. Such superlattices have sufficient gain to be used for vertical cavity surface emitting lasers ͑VCSELs͒, that can be pumped either optically [6][7][8][9][10][11][12][13] or electrically. 8,14,15 Edgeemitting lasers based on InAs/GaSb superlattices have also been demonstrated by a number of authors.…”

Section: Introductionmentioning

confidence: 99%