High-brightness long 940-nm diode lasers with double-waveguide structure

Iulian B. Petrescu-Prahova; Thomas Moritz; John Riordan

doi:10.1117/12.475752

3 July 2003 High-brightness long 940-nm diode lasers with double-waveguide structure

Iulian B. Petrescu-Prahova, Thomas Moritz, John Riordan

Proceedings Volume 4995, Novel In-Plane Semiconductor Lasers II; (2003) https://doi.org/10.1117/12.475752
Event: Integrated Optoelectronics Devices, 2003, San Jose, CA, United States

Abstract

Two double-waveguide 940 nm asymmetric structures with 8 nm In_xGa_1-xAs quantum well (x = 0.13) are presented. They consist of an active region waveguide that includes a QW and an optical trap waveguide on the n side of the active region. The second structure has a supplementary optical wall in the p - clad that further pushes the optical field from the active region and reduces the confinement factor. The nominal lengths were chosen as 2.8 mm and 4 mm and the design values for the d/gamma ratio were 0.8 μm and 1.14 μm, respectively. Devices were fabricated with 100 μm apertures and yielded threshold current densities of 0.2 kA/cm² and 0.17 kA/cm² with corresponding slope efficiencies of 0.76 W/A and 0.85 W/A. At high current levels devices presented a power saturation behavior. The highest power values were 9.7 W (rollover) and 11.5 W (CMOD), respectively.

Citation Download Citation

Iulian B. Petrescu-Prahova, Thomas Moritz, and John Riordan "High-brightness long 940-nm diode lasers with double-waveguide structure", Proc. SPIE 4995, Novel In-Plane Semiconductor Lasers II, (3 July 2003); https://doi.org/10.1117/12.475752

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available