By Topic

High-speed (/spl ges/1 GHz) electrical and optical adding, mixing, and processing of square-wave signals with a transistor laser

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

5 Author(s)
Milton Feng ; Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL ; Holonyak, N. ; Chan, R. ; James, A.
more authors

This letter reports the common-emitter operation (gain beta=DeltaIC/DeltaIB>1, 20degC, IB =36 mA, lambda=970 nm) of a dual-input transistor laser, arranged with a separate base contact on either side of a single emitter, that adds, mixes, and processes high-speed square-wave electrical inputs and delivers separate electrical and optical outputs. Applying a square-wave electrical input X1(t) to one base contact and X2(t) at a second base input, we obtain, with the pulsewidth modulated because of mixing, an electrical output proportional to betatimes[X1(t)+X2(t)] and a laser output tracking the electrical output (hnutimesf[X1(t)+X2(t)]) and exceeding it in bandwidth (pulse sharpness)

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 11 )