Phase and spatial coherence measurements on diode arrays: Comparison to supermode theory

Dente, Gregory C.; Wilson, Kimberley A.; Salvi, Theodore C.; Depatie, David
July 1987
Applied Physics Letters;7/6/1987, Vol. 51 Issue 1, p9
Academic Journal
We describe a simple method for measuring the output phase and spatial coherence of semiconductor lasers and laser arrays.


Related Articles

  • Coherent near-infrared wavelength conversion in semiconductor quantum cascade lasers. Zervos, C.; Frogley, M. D.; Phillips, C. C.; Kundys, D. O.; Wilson, L. R.; Cockburn, J. W.; Hopkinson, M.; Skolnick, M. S. // Applied Physics Letters;10/30/2006, Vol. 89 Issue 18, p183507 

    A scheme for generating coherent “sidebands” on a near-infrared optical carrier beam is demonstrated experimentally, using a modified quantum cascade laser. The active region of the laser simultaneously provides the gain, generates one of the optical fields, and provides a doubly...

  • Power dependence of the linewidth enhancement term in semiconductor lasers. Elsässer, W. // Applied Physics Letters;1984, Vol. 44 Issue 12, p1126 

    The theory of the spectral linewidth of a single longitudinal laser mode is re-examined on the basis of a phase diffusion model. The contribution to the linewidth resulting from the coupling of phase and amplitude (self-coupling term described by the enhancement factor α) is investigated...

  • Swept laser source at 1 μm for Fourier domain optical coherence tomography. Zhang, Jun; Qiang Wang; Bin Rao; Zhongping Chen; Hsu, Kevin // Applied Physics Letters;8/14/2006, Vol. 89 Issue 7, p073901 

    A frequency swept source at 1 μm wavelength for Fourier domain optical coherence tomography (FDOCT) was demonstrated. The source incorporates a fiber-coupled semiconductor optical amplifier gain module, a fiber Fabry-Pérot tunable filter, and fiber isolators to form a ring laser. The laser...

  • An electrically injected rolled-up semiconductor tube laser. Dastjerdi, M. H. T.; Djavid, M.; Mi, Z. // Applied Physics Letters;1/12/2015, Vol. 106 Issue 2, p1 

    We have demonstrated electrically injected rolled-up semiconductor tube lasers, which are formed when a coherently strained InGaAs/InGaAsP quantum well heterostructure is selectively released from the underlying InP substrate. The device exhibits strong coherent emission in the wavelength range...

  • Statistics of intensity of backscattered semiconductor laser radiation in single-mode optic fiber. Alekseev, A.; Tezadov, Ya.; Potapov, V. // Technical Physics Letters;Jan2012, Vol. 38 Issue 1, p89 

    We have studied the statistics of the intensity of backscattered radiation of a semiconductor laser in single-mode optic fiber as a function of the probing laser pulse duration and coherence time. It is shown that, at a given radiation source coherence time, the intensity distribution function...

  • Coherence tomography proves a high-resolution clinical...  // Laser Focus World;Jan94, Vol. 30 Issue 1, p9 

    Reports on the development of a noncontact method called optical coherence tomography, which provides three-dimensional images of the retina in less than 3 seconds. Use of a superluminescent light-emitting diode (LED) in a fiberoptic Michelson interferometer.

  • Specific Features of the Resonance Interaction of a Coherent Wave with an Ensemble of Impurity Atoms of a Photonic Crystal. Basharov, A. M. // Optics & Spectroscopy;Mar2001, Vol. 90 Issue 3, p435 

    Two-quantum relaxation transitions in an impurity atom that are activated by its resonance interaction with a monochromatic wave lead to hole burning in the distribution of atoms populating the lower energy level over detunings from the resonance. In this case, the levels of an impurity atom...

  • Generalized Schrödinger Cat States in Cavity QED. Solano, E.; Agarwal, G. S.; Walther, H. // Optics & Spectroscopy;May2003, Vol. 94 Issue 5, p805 

    A method of generating generalized Schrödinger cat states by considering the resonant interaction of a high-quality cavity with N two-level atoms driven by a strong classical field is proposed.

  • Feynman’s Decoherence. Kim, Y. S.; Noz, M. E. // Optics & Spectroscopy;May2003, Vol. 94 Issue 5, p733 

    Gell-Mann's quarks are coherent particles confined within a hadron at rest, but Feynman's partons are incoherent particles which constitute a hadron moving with a velocity close to that of light. It is widely believed that the quark model and the parton model are two different manifestations of...


Read the Article


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

Try another library?
Sign out of this library

Other Topics