Cost-effective optoacoustic system based on the combination of high-power diode lasers

Miguel Sánchez; Sergio Rodríguez; Sandeep B. Gawali; Luca Leggio; Daniel C. Gallego; Horacio Lamela

doi:10.1117/12.2253731

22 March 2017 Cost-effective optoacoustic system based on the combination of high-power diode lasers

Miguel Sánchez, Sergio Rodríguez, Sandeep B. Gawali, Luca Leggio, Daniel C. Gallego, Horacio Lamela

Author Affiliations +

Proceedings Volume 10064, Photons Plus Ultrasound: Imaging and Sensing 2017; 100644F (2017) https://doi.org/10.1117/12.2253731
Event: SPIE BiOS, 2017, San Francisco, California, United States

Abstract

One of the main issues of the advances in optoacoustic (OA) applications is to reduce the high costs and the big sizes of solid state lasers. High-power diode lasers (HPDLs) have been demonstrated to be a valid alternative reducing enormously the expenses, besides other advantages such as smaller sizes and higher modulation frequencies. However, in some cases it is possible to furtherly reduce their costs. We present a cost-effective OA system based on the combination of several 905-nm HPDLs with direct coupling into a fiber bundle. These HPDLs have an internal pulse driver, based on an n-channel Mosfet and two charging capacitors, which needs an external Mosfet driver circuit and a voltage supply in order to improve the optical pulse shape and energy. We compare the performances and the prices of this OA system with another similar HPDL-based OA system built with commercial elements. Results indicate good OA signal generation (~15.6 mV_pp) with pulse energy of 12.3 μJ and, especially, a cost reduction by a factor of ~15 if compared to the other HPDL-based system.

Citation Download Citation

Miguel Sánchez, Sergio Rodríguez, Sandeep B. Gawali, Luca Leggio, Daniel C. Gallego, and Horacio Lamela "Cost-effective optoacoustic system based on the combination of high-power diode lasers", Proc. SPIE 10064, Photons Plus Ultrasound: Imaging and Sensing 2017, 100644F (22 March 2017); https://doi.org/10.1117/12.2253731

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