High-power high-brightness semiconductor tapered diode lasers for the red and near infrared spectral range

B. Sumpf; H. Wenzel; G. Erbert

doi:10.1117/12.839870

12 February 2010 High-power high-brightness semiconductor tapered diode lasers for the red and near infrared spectral range

B. Sumpf, H. Wenzel, G. Erbert

Author Affiliations +

Proceedings Volume 7616, Novel In-Plane Semiconductor Lasers IX; 76161L (2010) https://doi.org/10.1117/12.839870
Event: SPIE OPTO, 2010, San Francisco, California, United States

Abstract

The most promising concept to achieve high-output power together with a good beam quality is the tapered laser consisting of a straight ridge waveguide (RW) section and a tapered gain-region. The RW section should support only the fundamental guided mode and should suppress higher order modes. The taper angle has to be selected with respect to the lateral divergence of the beam propagating from the RW to the tapered section. High brightness tapered devices in the wavelength range between 635 nm and 1085 nm will be presented. For red emitting tapered lasers around 650 nm, the output power is limited to about 1 W due to the properties of the laser material. At this output power a beam propagation ratio M2 of 1.3 and a brightness of 100 MW•cm^-2•sr^-1 will be shown. Devices made from laser structures with low vertical divergence down to 25° (95% power included) without a significant deterioration of device parameters will be presented for the longer wavelength range near 1 μm. For tapered lasers manufactured from these structures, nearly diffraction limited output powers larger than 10 W and a brightness of 1 GW•cm^-2•sr^-1 were measured.

Citation Download Citation

B. Sumpf, H. Wenzel, and G. Erbert "High-power high-brightness semiconductor tapered diode lasers for the red and near infrared spectral range", Proc. SPIE 7616, Novel In-Plane Semiconductor Lasers IX, 76161L (12 February 2010); https://doi.org/10.1117/12.839870

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