Integrated photodiodes complement the VCSEL platform

Martin Grabherr; Philipp Gerlach; Roger King; Roland Jäger

doi:10.1117/12.808847

6 February 2009 Integrated photodiodes complement the VCSEL platform

Martin Grabherr, Philipp Gerlach, Roger King, Roland Jäger

Proceedings Volume 7229, Vertical-Cavity Surface-Emitting Lasers XIII; 72290E (2009) https://doi.org/10.1117/12.808847
Event: SPIE OPTO: Integrated Optoelectronic Devices, 2009, San Jose, California, United States

Abstract

Many VCSEL based applications require optical feedback of the emitted light. E.g. light output monitor functions in transceivers are used to compensate for thermally induced power variation, power degradation, or even breakdown of pixels if logic for redundancy is available. In this case integrated photodiodes offer less complex assembly compared to widely used hybrid solutions, e.g. known in LC-TOSA assemblies. Especially for chip-on-board (COB) assembly and array configurations, integrated monitor diodes offer a simple and compact power monitoring possibility. For 850 nm VCSELs the integrated photodiodes can be placed between substrate and bottom-DBR, on top of the top-DBR, or inbetween the layer sequence of one DBR. Integrated intra-cavity photodiodes offer superior characteristics in terms of reduced sensitivity for spontaneously emitted light [1] and thus are very well suited for power monitoring or even endof- life (EOL) detection. We present an advanced device design for an intra-cavity photodiode and according performance data in comparison with competing approaches.

Citation Download Citation

Martin Grabherr, Philipp Gerlach, Roger King, and Roland Jäger "Integrated photodiodes complement the VCSEL platform", Proc. SPIE 7229, Vertical-Cavity Surface-Emitting Lasers XIII, 72290E (6 February 2009); https://doi.org/10.1117/12.808847

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