Wavelength tuning characteristics of tunable twin-guide lasers with improved current-injection structures
- 17 February 1992
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 60 (7) , 805-806
- https://doi.org/10.1063/1.106524
Abstract
Tunable twin-guide distributed feedback (TTG-DFB) lasers are fabricated by the all-metalorganic vapor phase epitaxy (MOVPE) process. A very wide continuous tuning range (4.9 nm/25 mA) with single-mode operation is obtained by improving the efficiency of current-injection into the modulation layer. The side-mode suppression ratio (SMSR) is larger than 20 dB in the tuning range up to 4.3 nm.The threshold current is 16 mA and maximum output power is 5 mW.Keywords
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