High efficient photovoltaic power converter suitable for 920nm to 970nm InGaAs laser diodes

James Liu; Ta-Chung Wu; Mort Cohen; Jan G. Werthen

doi:10.1117/12.618445

18 August 2005 High efficient photovoltaic power converter suitable for 920nm to 970nm InGaAs laser diodes

James Liu, Ta-Chung Wu, Mort Cohen, Jan G. Werthen

Proceedings Volume 5871, Optical Technologies for Arming, Safing, Fuzing, and Firing; 58710D (2005) https://doi.org/10.1117/12.618445
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

In this work, we report a highly efficient Photovoltaic Power Converter (PPC) suitable for 920 nm to 970 nm InGaAs MQW lasers for the first time. The epitaxial layers were grown by low pressure MOCVD on the semi-insulting GaAs substrate. The epi layers consist of a p-n junction of In_0.12Ga_0.88As and the window layer of p+ AlInGaAs. The device is made of seven or eight pie-segments of equal area series-connected by means of air-bridges. Under 500mW of 940nm laser illumination, the open-circuit voltage of the eight-segment InGaAs chip is 6.7V. The short-circuit current is 29.7mA. Its maximum delivered electrical power is 171.2mW, equal to a 34.2% overall power conversion efficiency. We also demonstrate the high temperature characteristic and stability of the device.

Citation Download Citation

James Liu, Ta-Chung Wu, Mort Cohen, and Jan G. Werthen "High efficient photovoltaic power converter suitable for 920nm to 970nm InGaAs laser diodes", Proc. SPIE 5871, Optical Technologies for Arming, Safing, Fuzing, and Firing, 58710D (18 August 2005); https://doi.org/10.1117/12.618445

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