Recent progress in short wavelength quantum cascade lasers

Revin, D. G.; Commin, J. P.; Cockburn, J. W.; Zhang, S. Y.; Kennedy, K.; Krysa, A. B.; Hopkinson, M.; Slight, Thomas J.; McKee, Andrew; Meredith, W.; Ironside, C. N.

doi:10.1109/phosst.2011.6000042

Cited by 2 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the short wavelength limit of the mid‐IR (2–5 μm) is challenging for quantum cascade lasers due to fundamental and material limitations, e.g. conduction band offset , and as such few QCL sources exist in this wavelength range capable of offering high power, CW and room temperature operation. With the maturity of rare earth doped glasses and transition metal doped II‐VI semiconductor lasers for mid‐IR emission , the development of mid‐IR waveguide laser sources fabricated by ULI has become an attractive proposition in the 2–3 μm region.…”

Section: Compact Laser Sourcesmentioning

confidence: 99%

Ultrafast laser inscription: perspectives on future integrated applications

Choudhury

MacDonald

Kar

2014

Laser & Photonics Reviews

169

View full text Add to dashboard Cite

This paper reviews the recent advancements achieved using ultrafast laser inscription (ULI) that highlight the cross-disciplinary potential of the technology. An overview of waveguide fabrication is provided and the three distinct types of waveguide cross-section architectures that have so far been fabricated in transparent dielectric materials are discussed. The paper focuses on two key emergent technologies driven by ULI processes. First, the recently developed photonic devices, such as compact mode-locked waveguide sources and novel midinfrared waveguide lasers are discussed. Secondly, the phenomenon and applications of selective etching in developing ultrafast laser inscribed structures for compact lab-on-chip devices are elaborated. The review further discusses the conceivable future of ULI in impacting the aforementioned fields.

show abstract

Section: Compact Laser Sourcesmentioning

confidence: 99%

Ultrafast laser inscription: perspectives on future integrated applications

Choudhury

MacDonald

Kar

2014

Laser & Photonics Reviews

169

View full text Add to dashboard Cite

show abstract

“…State of the art THz QCLs rely on a resonant engineered χ (2) , Cherenkov scheme and purification of the field with a distributed feedback laser grating [13][14][15][16][17]. Concerning the near-IR range, despite recent progress at short wavelengths [18], QCLs do not currently operate under 3 μm because of an increased inter-valley scattering and a lack of large conduction band offsets. However, intra-cavity second harmonic generation at 2.7 μm has been demonstrated in QCLs emitting by [19], albeit its reliance on a resonant χ (2) makes it poorly tunable.…”

Section: Introductionmentioning

confidence: 99%

Quantum‐dot‐based integrated non‐linear sources

Bernard

Mariani

Andronico

et al. 2015

IET Optoelectronics

View full text Add to dashboard Cite

International audienceThe authors report on the design and the preliminary characterisation of two active non-linear sources in the terahertz and near-infrared range. The former is associated to difference-frequency generation between whispering gallery modes of an AlGaAs microring resonator, whereas the latter is granted by parametric generation in a waveguide via modal phase matching. Both devices rely on embedded quantum-dot lasers, which allow for low-threshold currents and unconventional geometries. They also include specific degrees of freedom that open a practical route towards phase matching, either during the lithographic process or during operation

show abstract

Recent progress in short wavelength quantum cascade lasers

Cited by 2 publications

References 2 publications

Ultrafast laser inscription: perspectives on future integrated applications

Ultrafast laser inscription: perspectives on future integrated applications

Quantum‐dot‐based integrated non‐linear sources

Contact Info

Product

Resources

About