DocumentCode :
948427
Title :
6 THz range tunable 2.5 Gb/s frequency conversion by a multiquantum well Y laser
Author :
Schilling, Michael ; Idler, Wilfried ; Baums, Dieter ; Dütting, Kaspar ; Laube, Gert ; Wünstel, Klaus ; Hildebrand, Olaf
Author_Institution :
ALCATEL SEL, Stuttgart, Germany
Volume :
29
Issue :
6
fYear :
1993
fDate :
6/1/1993 12:00:00 AM
Firstpage :
1835
Lastpage :
1843
Abstract :
Improved monolithic interferometric semiconductor lasers in Y configuration are reported. When they are operated as electrically tunable light sources, single-longitudinal-mode emission with a very large CW tuning range up to 51 nm is obtained. By using all-quaternary compressively strained multi-quantum-well (MQW) active layers, low DC threshold currents down to <10 mA per segment are also obtained (i.e., <40 mA for the total 1500-μm-long and branched device being pumped uniformly). Asymmetrical Y laser configurations which exhibit simplified current control schemes allowing for improved wavelength tuning response are studied. Single-current-step tuning spans a range up to 8 nm. In the all-optical wavelength converter operation mode the wide tunability of Y lasers across the whole spectrum of the semiconductor gain profile can be fully exploited
Keywords :
integrated optoelectronics; laser tuning; light interferometers; optical communication equipment; semiconductor lasers; 1500 micron; 2.5 Gbit/s; 6 THz; DC threshold currents; Y configuration; all quaternary compressively strained multi-quantum-well active layers; all-optical wavelength converter operation mode; branched device; continuous wave tuning range; electrically tunable light sources; monolithic interferometric semiconductor lasers; multiquantum well Y laser; semiconductor gain profile; simplified current control schemes; single current step tuning; single-longitudinal-mode emission; tunable frequency conversion; wavelength tuning response; Frequency conversion; Laser modes; Laser tuning; Light sources; Optical interferometry; Pump lasers; Quantum well devices; Semiconductor lasers; Threshold current; Tunable circuits and devices;
fLanguage :
English
Journal_Title :
Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
0018-9197
Type :
jour
DOI :
10.1109/3.234441
Filename :
234441
Link To Document :
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