Title :
Ultrahigh speed cryogenic laser diodes for broadband optical fiber link applications
Author :
Rang-Chen Yu ; Nagarajan, Radhakrishnan ; Reynolds, Tim ; Bowers, John E. ; Shakouri, M. ; Park, Jongho ; Lau, K.Y. ; Chung-en Zah ; Zou, Weiwen ; Merz, J.
Author_Institution :
Conductus Inc., Sunnyvale, CA, USA
Abstract :
In this paper, we present the first systematic study of the temperature dependence of the high performance of various laser diodes from room temperature down to 10 K. We found that as the threshold current of these diodes decreases by at least an order of magnitude at low temperatures, the modulation bandwidth is dramatically improved. The best result is 27 GHz at 100 K for an InGaAsP multiple quantum well laser. We also present experiments on a broadband optical fiber link utilizing a cooled laser diode as a transmitter for 10 Gb/s digital data transmission and 28 GHz carrier video delivery applications.<>
Keywords :
cryogenics; digital communication; optical fibre communication; optical modulation; optical transmitters; quantum well lasers; video signals; 10 Gbit/s; 10 to 293 K; 27 GHz; InGaAsP; broadband optical fiber link; cooled laser diode; cryogenic laser diodes; digital data transmission; modulation bandwidth; multiple quantum well laser; temperature dependence; threshold current; video delivery applications; Bandwidth; Cryogenics; Data communication; Diode lasers; Fiber lasers; Optical fibers; Optical transmitters; Quantum well lasers; Temperature dependence; Threshold current;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406101
