TITLE

Single longitudinal mode operation of semiconductor laser arrays with étalon feedback

AUTHOR(S)
Hemmati, H.
PUB. DATE
July 1987
SOURCE
Applied Physics Letters;7/27/1987, Vol. 51 Issue 4, p224
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The multiple longitudinal mode output of high-power diode-laser arrays is converted into single mode with 97% efficiency by optical feedback from a thin (<200 μm thick) étalon external to the laser. The coupled cavities formed by addition of the étalon favor a single longitudinal mode. Single-mode operation is retained at 0.1 MHz pulsed rates. Both the near-field and the far-field patterns of the laser array remain nearly unchanged while the array operates in a single longitudinal mode.
ACCESSION #
9823686

 

Related Articles

  • Filamentation instability in a semiconductor laser. Amrita; Sharma, A. K. // Journal of Applied Physics;7/1/2003, Vol. 94 Issue 1, p19 

    In a semiconductor laser, a perturbation in the laser intensity, transverse to the direction of laser propagation, has a tendency to grow. The regions of higher intensity cause higher stimulated emission via electron-hole recombination, hence the electron density falls and gives rise to a higher...

  • Quantum-well lasers for direct solar photopumping. Unnikrishnan, Sreenath; Anderson, Neal G. // Journal of Applied Physics;9/15/1993, Vol. 74 Issue 6, p4221 

    Presents a study which explored the possibility of photopumping semiconductor lasers directly with sunlight under air-mass-zero conditions, focusing on step-index separate-confinement-quantum-well-heterostructure (SCQWH) lasers based on the In[subx]Ga[sub1-x]As and Al[suby]Ga[sub1-y]As compound...

  • Semiconductor laser achieves record single-mode fiber-coupling efficiency.  // Laser Focus World;Mar94, Vol. 30 Issue 3, p9 

    Reports that researchers in Lexington, Massachusetts have coupled more that 1 W of 974 nanometer output from two copropagaing lasers into a single-mode fiber using semiconductor pump lasers. Fiber-coupling efficiency; Pumping of an erbium-doped fiber amplifier.

  • Shortest-wavelength blue semiconductor laser reported.  // Laser Focus World;Dec94, Vol. 30 Issue 12, p9 

    Reports on the development of a semiconductor laser with a wave-length of 463 nm at the Brown University in Providence, Rhode island. Features of the laser.

  • The future looks bright for high-power semiconductor lasers. Anderson, Stephen G. // Laser Focus World;Dec94, Vol. 30 Issue 12, p63 

    Focuses on the applications of high-power semiconductor lasers. Features of semiconductor lasers; Use of the output of diode lasers to pump a solid material; Research on the applications of semiconductor lasers.

  • Indium arsenide device provides mid-IR output. Anderson, Stephen G. // Laser Focus World;Apr95, Vol. 31 Issue 4, p18 

    Features the high-power mid-infrared semiconductor lasers demonstrated by scientists at Hughes Research Laboratories and MIT Lincoln Laboratory. Material structure; Laser sources.

  • Optically pumped II-VI multiple-quantum-well device lases at 333 nanometers.  // Laser Focus World;Jun96, Vol. 32 Issue 6, p9 

    Reports that University of Hull researchers have demonstrated ultraviolet laser action at 333 nanometer from a II-VI multiple-quantum-well structure grown by molecular-beam epitaxy. Methodology of the study; Electronic gain as a contributor to lasing; Aim of the research to produce a diode laser...

  • `Inverted' ridge suggests high power output. Carts-Powell, Yvonne // Laser Focus World;Jul96, Vol. 32 Issue 7, p18 

    Reports on researchers' development of a semiconductor laser with an inverted microstrip ridge structure that shows potential for both high-power output and very-high-frequency operation at the important communication wavelength of 1.55 micrometers. Design and structure of the new device;...

  • Aluminum-free large-optical-cavity diode laser generates 8 W at 980 nm.  // Laser Focus World;Aug96, Vol. 32 Issue 8, p9 

    Reports that more than 8 watts of 980-nanometer continuous-wave (CW) output power from the front facet of a 100-micron-aperture aluminum-free semiconductor laser has been obtained by researchers. Highest CW output reported from any 100-micron-strip semiconductor laser; Application of the broad...

  • Quantum dot laser emits 707 nanometers.  // Laser Focus World;Jan97, Vol. 33 Issue 1, p11 

    Focuses on the development of a red-emitting semiconductor quantum dot laser at the Institute for Microstructural Sciences, National Research Council of Canada. Features of the laser; Comment by the institute's Simon Fafard; Optical gain from the laser.

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