Title :
Precise SDH frequency operation of monolithic modelocked laser diodes with frequency tuning function
Author :
Ogura, I. ; Sasaki, T. ; Yamada, H. ; Yokoyama, H.
Author_Institution :
Opto-Electron. & High Frequency Device Res. Labs., NEC Corp., Ibaraki, Japan
fDate :
7/22/1999 12:00:00 AM
Abstract :
Frequency tuning has been achieved in monolithic modelocked laser diodes through electrical control of the distributed Bragg reflector (DBR) effective length. A 0.5% frequency-tuning range has been obtained, which is wide enough to compensate for the frequency error that results from cavity length uncertainty when the usual cleaving process is used. Low-jitter 9.95328 GHz SDH frequency operation with a 6 ps transform-limited pulse output has been demonstrated
Keywords :
distributed Bragg reflector lasers; laser tuning; optical communication equipment; semiconductor lasers; synchronous digital hierarchy; 9.95328 GHz; cavity length uncertainty; cleaving process; electrical control; frequency error; frequency tuning function; frequency-tuning range; monolithic modelocked laser diodes; precise SDH frequency operation; transform-limited pulse output;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19990860
