TITLE

Demonstration of Raman gain at 800 nm in single-mode fiber and its potential application to biological sensing and imaging

AUTHOR(S)
Goda, Keisuke; Mahjoubfar, Ata; Jalali, Bahram
PUB. DATE
December 2009
SOURCE
Applied Physics Letters;12/21/2009, Vol. 95 Issue 25, p251101
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Optical amplification prior to photon-to-electron conversion improves detection sensitivity in spectroscopic and imaging applications. Here we report the first experimental demonstration of Raman amplification in a single-mode fiber at wavelengths near 800 nm. This approach can potentially enable fast real-time optical sensing and imaging in the wavelength band that benefits from both low water absorption and the availability of high-power Ti:Sapphire lasers.
ACCESSION #
47132878

 

Related Articles

  • Limitations of active carrier removal in silicon Raman amplifiers and lasers. Dimitropoulos, D.; Fathpour, S.; Jalali, B. // Applied Physics Letters;12/26/2005, Vol. 87 Issue 26, p261108 

    The lifetime of two-photon generated carriers has been established as the critical parameter that determines the performance of silicon Raman lasers and amplifiers since it determines the optical loss. Here, we investigate the intensity dependence of the carrier lifetime in the case where the...

  • Major features of frequency sweeping of emission from heterojunction quantum lasers. Kuntsevich, B.; Kononenko, V. // Journal of Applied Spectroscopy;Mar2007, Vol. 74 Issue 2, p251 

    We have used numerical modeling to establish the major features of the variation (sweeping) of the “ instantaneous” laser frequency of heterojunction quantum lasers as a function of the pump current modulation frequency and tuning of the lasing frequency within the gain band. The...

  • Enhanced performance of bipolar cascade light-emitting diodes by doping the aluminum oxide apertures. Siskaninetz, W. J.; Ehret, J. E.; Lott, J. A.; Griffith, J. C.; Nelson, T. R. // Applied Physics Letters;3/14/2005, Vol. 86 Issue 11, p111108 

    Performance improvements in multiple-stage, single-cavity bipolar cascade light-emitting diodes including reduced operating voltages, enhanced light generation, and reduced device heating are obtained by doping intracavity aluminum oxide apertures with silicon. This doping results in a reduced...

  • Mid-infrared pump-related electric-field domains in GaAs/(Al,Ga)As quantum-cascade structures for terahertz lasing without population inversion. Giehler, M.; Wienold, M.; Schrottke, L.; Hey, R.; Grahn, H. T.; Pavlov, S. G.; Hübers, H.-W.; Winnerl, S.; Schneider, H. // Journal of Applied Physics;Nov2011, Vol. 110 Issue 10, p103104 

    We investigate the effect of mid-infrared (MIR) pumping on the transport properties of GaAs/(Al,Ga)As terahertz (THz) quantum lasers (TQLs), which rely on quantum coherence effects of intersubband transitions. Aiming at THz lasing at elevated temperatures, we extend the concept of THz gain with...

  • Frequency sweeping of emission from heterojunction quantum lasers with pump current modulation. Kuntsevich, B. F.; Kononenko, V. // Journal of Applied Spectroscopy;May2006, Vol. 73 Issue 3, p420 

    We have used numerical modeling to study the dynamic shift of the “instantaneous” laser frequency (sweeping) as a function of the pump current modulation frequency for heterojunction quantum lasers when the lasing frequency is tuned within the gain band. As the model for the active...

  • Optically tunable long wavelength infrared quantum cascade laser operated at room temperature. Suchalkin, S.; Jung, S.; Tober, R.; Belkin, M. A.; Belenky, G. // Applied Physics Letters;1/7/2013, Vol. 102 Issue 1, p011125 

    We demonstrate rapid tuning of the emission frequency of a room-temperature mid-infrared quantum cascade laser by external optical pumping. Emission frequency tuning over 0.3 cm-1 (10 GHz) has been achieved for a λ = 9 μm device by optical generation of electron-hole pairs along the entire...

  • Laser Experiments for High Energy Density Science. Kumar, G. Ravindra // AIP Conference Proceedings;11/23/2010, Vol. 1308 Issue 1, p46 

    High energy density science probes some of the most basic scientific questions that cut across traditional disciplines. The advent of table top, terawatt, femtosecond lasers promises to revolutionize this area by the use of precise experimental techniques on the one hand and testing of models...

  • Low and Medium Frequency Noise Levels of fibered very-high-power 1460nm-Pump Laser Diode designed for Raman Amplification. Chluda, Cedric; Myara, Mikhael; Perez, Jean-Philippe; Signoret, Philippe; Orsal, Bernard // AIP Conference Proceedings;2005, Vol. 780 Issue 1, p377 

    We report low and medium frequency optical noise measurements on very-high-power fibered 1460nm-Pump Lasers (P > 200mW) designed for Raman Amplification. These Fabry-Perot Lasers exhibit spectra from a quite monomode situation (Side Mode Suppression Ratio ≈ 10dB) at near threshold current...

  • Polarization-dependent optical characteristics of violet InGaN laser diodes. Yen, Sheng-Horng; Kuo, Yen-Kuang // Journal of Applied Physics;May2008, Vol. 103 Issue 10, p103115 

    The polarization-dependent optical characteristics of violet InGaN laser diodes, such as band diagrams, emission wavelength, and threshold current, under different operation temperatures have been investigated numerically. Specifically, the normal and reversed polarizations are presented when...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

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

Try another library?
Sign out of this library

Other Topics