Angled launch techniques using vertical-cavity surface-emitting lasers for gigabit data links

Matthew Webster; Ian H. White; Richard V. Penty

doi:10.1117/12.347098

29 April 1999 Angled launch techniques using vertical-cavity surface-emitting lasers for gigabit data links

Matthew Webster, Ian H. White, Richard V. Penty

Author Affiliations +

Proceedings Volume 3627, Vertical-Cavity Surface-Emitting Lasers III; (1999) https://doi.org/10.1117/12.347098
Event: Optoelectronics '99 - Integrated Optoelectronic Devices, 1999, San Jose, CA, United States

Abstract

We report experimental evidence for bandwidth collapse occurring in links employing vertical cavity lasers under conventional launching conditions. Small launch misalignments are found to result in link bandwidths up to 40% below the modal bandwidth of the fiber with eye closure penalties of 4 dB. This effect can cause gigabit/s link lengths to be limited to less than previously thought. By implementing restricted mode launches using angled launch techniques we show that significant performance improvements are achievable. In particular, by adopting an angle of 8 degree(s) between the launch axis and the fiber end face we show that the transmission bandwidth is 100% greater than the 550 Mhz.km fiber bandwidth for a wide range of launch misalignments.

Citation Download Citation

Matthew Webster, Ian H. White, and Richard V. Penty "Angled launch techniques using vertical-cavity surface-emitting lasers for gigabit data links", Proc. SPIE 3627, Vertical-Cavity Surface-Emitting Lasers III, (29 April 1999); https://doi.org/10.1117/12.347098

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