Cavity optimization of optically pumped broad-area microcavity lasers

Barbay, S.; Ménesguen, Y.; Sagnes, I.; Kuszelewicz, R.
April 2005
Applied Physics Letters;4/11/2005, Vol. 86 Issue 15, p151119
Academic Journal
We demonstrate a cavity optimization method for efficient optical pumping of a semiconductor microcavity. An enhanced pumping efficiency makes it possible to pump broad-area microcavities for, e.g., high-power lasers or parallel optical processing of information. This is especially important in the near-infrared where a pump not absorbed into the active material is absorbed into the substrate and converted into heat. We apply the method to optical pumping of a 80 μm diameter laser with a spatially uniform pump profile. This method could also prove useful for the design of vertical external cavity surface emitting lasers.


Related Articles

  • Light Deposition in Dental Hard Tissue and Simulated Thermal Response. Seka, W.; Fried, D.; Featherstone, J. D. B.; Borzillary, S. F. // Journal of Dental Research;Apr1995, Vol. 74 Issue 4, p1086 

    Near-IR (∼ 1 µm) lasers are presently used for a variety of intra-oral applications including dental hard tissue ablation, although the light intensity distribution and subsequent heating of the hard tissue are still poorly understood. This paper presents a detailed numerical study of...

  • A photoacoustic spectrometer for measuring subgap absorption spectra of semiconductors. Zegadi, A.; Slifkin, M. A.; Tomlinson, R. D. // Review of Scientific Instruments;Jul1994, Vol. 65 Issue 7, p2238 

    In this paper we describe the design of a high resolution near-infrared photoacoustic spectrometer of the gas-microphone type intended to be used for measuring impurity absorption spectra of semiconductors. Particular attention has been paid to the design of the photoacoustic cell to find the...

  • The Study of Flow Characteristic of Gas-liquid Two-phase Flow Based on the Near-infrared Detection Device. Lide Fang; Yujiao Liang; Yao Zhang; Chen Zhang; Jingzhe Gao // AIP Conference Proceedings;2014, Vol. 1592, p236 

    With the importance of the two-phase flow, many scholars pay attention on it; and for the so many parameters in the gas-liquid two-phase flow, flow characteristic is the basis. For the four flow patterns in the vertical direction, slug flow, bubbly flow, annular flow, and milk foam-like flow,...

  • Dynamic behavior of 1040 nm semiconductor disk lasers on a nanosecond time scale. Diehl, W.; Brick, P.; Chatterjee, S.; Horst, S.; Hantke, K.; Rühle, W. W.; Stolz, W.; Thränhardt, A.; Koch, S. W. // Applied Physics Letters;6/11/2007, Vol. 90 Issue 24, p241102 

    The nanosecond dynamics of near-infrared semiconductor disk lasers is investigated experimentally and theoretically. Lasing and photoluminescence following barrier pumping are analyzed. Their spectral and temporal features such as luminescence overshoot and clamping, delay of lasing onset, and...

  • Photonics: Terahertz collisions. Huber, Rupert // Nature;3/29/2012, Vol. 483 Issue 7391, p545 

    The article discusses the author's views on intense laser fields to rip electron using terahertz radiation. He refers to the study by Zakz and colleagues which transfer the concept to a low-energy recollision in thin semiconductor layers using near-infrared laser light. The author thinks that...

  • Using LabVIEW and IMAQ Vision for Laser-Beam Profiling. Richards, Austin // Instrumentation Newsletter;2002 1st Quarter, Vol. 14 Issue 1, p18 

    Focuses on the development of near-infrared imaging systems for laser-beam profiling applications. Integration of sensor into the system; Provision of serial command interface document; Quality of the diode laser.

  • Simultaneous measurement of liquid water film thickness and vapor temperature using near-infrared tunable diode laser spectroscopy. Yang, H.; Greszik, D.; Dreier, T.; Schulz, C. // Applied Physics B: Lasers & Optics;May2010, Vol. 99 Issue 3, p385 

    A fiber-based multiplexed tunable diode-laser absorption sensor with three near-infrared distributed-feedback diode lasers at ∼1.4 μm is used for simultaneous nonintrusive measurements of liquid water film thickness and vapor-phase temperature. Water film thicknesses are derived from...

  • A novel discrete mode narrow linewidth laser diode for spectroscopic based gas sensing in the 1.5 μm region. Weldon, V.; Pineda-Vadillo, P.; Lynch, M.; Phelan, R.; Donegan, J. // Applied Physics B: Lasers & Optics;Dec2012, Vol. 109 Issue 3, p433 

    The characteristics of a novel Discrete Mode laser diode are described with particular reference to its capability in spectroscopic based gas sensing. In this regard, its emission linewidth, Side Mode Suppression Ratio and tuneability are of particular note. The measured narrow linewidth of 550...

  • Parallel processing of cognitive and physical demands in left and right prefrontal cortices during smartphone use while walking. Naoyuki Takeuchi; Takayuki Mori; Yoshimi Suzukamo; Naofumi Tanaka; Shin-Ichi Izumi; Takeuchi, Naoyuki; Mori, Takayuki; Suzukamo, Yoshimi; Tanaka, Naofumi; Izumi, Shin-Ichi // BMC Neuroscience;2/1/2016, Vol. 17, p1 

    Background: Smartphone use while walking is becoming a public concern owing to an increased risk of falling that can result from cognitive-motor interference. We evaluated prefrontal cortex (PFC) activity in participants playing a smartphone game while walking, in order to elucidate...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics