TITLE

Thermal resistance of ridge-waveguide lasers mounted upside down

AUTHOR(S)
Amann, Markus-Christian
PUB. DATE
January 1987
SOURCE
Applied Physics Letters;1/5/1987, Vol. 50 Issue 1, p4
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The heat dissipation in upside down mounted ridge-waveguide lasers equipped with a double-channel structure is analyzed by a simplified device model. Assuming an isothermal active region, the thermal resistance is obtained by means of conformal mapping. A comparison to published experimental results shows good agreement.
ACCESSION #
9821802

 

Related Articles

  • Spectral and picosecond temporal properties of flared guide Y-coupled phase-locked laser arrays. DeFreez, R. K.; Bossert, D. J.; Yu, N.; Hartnett, K.; Elliott, R. A.; Winful, H. G. // Applied Physics Letters;12/12/1988, Vol. 53 Issue 24, p2380 

    Spatio-spectral and spatio-temporal properties of flared waveguide ‘‘Y’’-coupled laser arrays are investigated in both cw and pulsed operation. In each case, regular sustained self-pulsations are exhibited. Destabilization of phase locking, caused by amplitude phase...

  • Estimation of the spontaneous emission factor for microdisk lasers via the approximation of whispering gallery modes. Chin, Mee Koy; Chu, Daniel Y.; Ho, Seng-Tiong // Journal of Applied Physics;4/1/1994, Vol. 75 Issue 7, p3302 

    Presents a study that developed an approximate method for solving the whispering gallery modes in a microdisk laser. Schematic diagram of a cylindrical waveguide and a disk structure; Details on the threshold current of the laser; Method of calculation; Factors considered in solving the...

  • Low-threshold terahertz quantum-cascade lasers. Rochat, Michel; Ajili, Lassaad; Willenberg, Harald; Faist, Je´ro⁁me; Beere, Harvey; Davies, Giles; Linfield, Edmund; Ritchie, David // Applied Physics Letters;8/19/2002, Vol. 81 Issue 8, p1381 

    A quantum-cascade laser operating at λ = 66 µm is demonstrated. It consists of a three-quantum-well chirped-superlattice active region embedded in a waveguide based on a single interface plasmon and a buried contact. A threshold current density of 210 A/cm² at T = 12 K, a maximum peak...

  • Laser emission in Nd:YVO4 channel waveguides at 1064 nm. Sánchez-Morales, M. E.; Vázquez, G. V.; Mejía, E. B.; Márquez, H.; Rickards, J.; Trejo-Luna, R. // Applied Physics B: Lasers & Optics;Feb2009, Vol. 94 Issue 2, p215 

    In this work, we report 1064 nm laser emission in Nd:YVO4 channel waveguides fabricated by carbon implantation. Typical threshold pump powers (∼808 nm) were ≥45 mW. Maximum conversion efficiency was 11.5% (29.6% slope efficiency), and up to 9 mW of signal was delivered. Sample lengths...

  • Small-signal modulation and temperature dependence of the tunneling injection laser. Davis, L.; Sun, H.C. // Applied Physics Letters;6/13/1994, Vol. 64 Issue 24, p3222 

    Examines the small-signal modulation and temperature dependence of the tunneling injection laser. Relationship between drive current and modulation response; Change of power distribution in the modes and current leakage of ridge waveguide devices; Attainment of high differential gain and...

  • Very low loss channel waveguides in polymethylmethacrylate. Mukherjee, Anadi; Eapen, Ben Joy // Applied Physics Letters;12/19/1994, Vol. 65 Issue 25, p3179 

    Presents an ultraviolet laser fabrication technique that allows minimum surface scattering loss in channel waveguide processing on polymethylmethacrylate. Role of bulk scattering in polymeric waveguides; Attainment of the desired target of linear propagation loss; Qualitative explanation for...

  • Nd:Ta2O5 rib waveguide lasers. Unal, Bayram; Tai, Chao-Yi; Shepherd, David P.; Wilkinson, James S.; Perney, Nicolas M. B.; Netti, M. Caterina; Parker, Gregory J. // Applied Physics Letters;1/10/2005, Vol. 86 Issue 2, p021110 

    Ta2O5 waveguides offer great potential for high-density active photonic crystal circuits and their combination with rare-earth dopants for active devices is of interest for increasing their potential functionality. To this end, neodymium-doped Ta2O5 rib waveguide lasers have been fabricated on...

  • Studying the characteristics of pulse-pumped semiconductor 1060-nm lasers based on asymmetric heterostructures with ultrathick waveguides. Vinokurov, D. A.; Kapitonov, V. A.; Lyutetskiĭ, A. V.; Nikolaev, D. N.; Pikhtin, N. A.; Rozhkov, A. V.; Rudova, N. A.; Slipchenko, S. O.; Stankevich, A. L.; Fetisova, N. V.; Khomylev, M. A.; Shamakhov, V. V.; Borshchev, K. S.; Tarasov, I. S. // Technical Physics Letters;Aug2006, Vol. 32 Issue 8, p712 

    High-power semiconductor lasers based on asymmetric quantum-dimensional separate confinement InGaAs/GaAs heterostructures with ultrathick waveguides were fabricated by means of metalorganic hydride vapor phase epitaxy technology. The laser characteristics were studied in a pulsed pumping regime,...

  • Narrow versus broad asymmetric waveguides for single-mode high-power laser diodes. Ryvkin, Boris S.; Avrutin, Eugene A.; Kostamovaara, Juha T. // Journal of Applied Physics;Jul2013, Vol. 114 Issue 1, p013104 

    We investigate numerically the effect of the optical confinement layer thickness on the far field properties (far field shape and input efficiency) and confinement factor of an asymmetric-waveguide high power laser diode. A strong correlation is found between the confinement and input...

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