Misalignment-tolerant packaging of optical-interconnection-based systems using multiple photodetectors

Anjan K. Ghosh

doi:10.1117/12.441294

25 September 2001 Misalignment-tolerant packaging of optical-interconnection-based systems using multiple photodetectors

Anjan K. Ghosh

Author Affiliations +

Proceedings Volume 4417, Photonics 2000: International Conference on Fiber Optics and Photonics; (2001) https://doi.org/10.1117/12.441294
Event: Photonics 2000: International Conference on Fiber Optics and Photonics, 2001, Calcutta, India

Abstract

Alignment tolerance can be improved if instead of a large photodetector an array of several photodetectors is used to receive the power in each light beam used for interconnection. The design formulae for optically selecting the number of photodetectors, the center-to-center spacing between the photodetectors, and the radii of the photodetectors in a focal plane array are derived as a function of the spot sizes and diffraction patterns of the beams. Since photocurrents generated by several smaller photodiodes are summed together it is possible to enhance the signal to noise ratio without suffering a degradation in the overall bandwidth in the interconnect.

Citation Download Citation

Anjan K. Ghosh "Misalignment-tolerant packaging of optical-interconnection-based systems using multiple photodetectors", Proc. SPIE 4417, Photonics 2000: International Conference on Fiber Optics and Photonics, (25 September 2001); https://doi.org/10.1117/12.441294

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