Variation of refractive index step of 635nm ridge waveguide lasers for optimized index guiding

D. Feise; G. Blume; Chr. Kaspari; K. Paschke; G. Erbert

doi:10.1117/12.873397

21 February 2011 Variation of refractive index step of 635nm ridge waveguide lasers for optimized index guiding

D. Feise, G. Blume, Chr. Kaspari, K. Paschke, G. Erbert

Proceedings Volume 7918, High-Power Diode Laser Technology and Applications IX; 791812 (2011) https://doi.org/10.1117/12.873397
Event: SPIE LASE, 2011, San Francisco, California, United States

Abstract

We report on experimental and theoretical investigations concerning the influence of the ridge etching depth and the corresponding effective refractive index step on the electro-optical properties of ridge waveguide diode lasers emitting near 635 nm. We observe a suppression of higher order lateral modes for larger steps in effective index leading to a more homogeneous far field, as required e.g. in "flying spot" display applications. With the proper design choice, a total optical output power of P > 200 mW at 638 nm and 15°C and a beam quality M² < 2 could be achieved.

Citation Download Citation

D. Feise, G. Blume, Chr. Kaspari, K. Paschke, and G. Erbert "Variation of refractive index step of 635nm ridge waveguide lasers for optimized index guiding", Proc. SPIE 7918, High-Power Diode Laser Technology and Applications IX, 791812 (21 February 2011); https://doi.org/10.1117/12.873397

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