Abstract
Stable single-mode lasers with narrow linewidth are highly desirable in advanced fiber optic systems. As one of the effective approaches to obtain single mode oscillation in DFB lasers, a gain grating has attracted considerable attention in recent years. Since the coupling strength of a gain grating is gain-dependent, the study of the threshold condition of gain-coupled DFB lasers is much more complex than that of index-coupled DFB lasers.1‘2 Such a study is also crucial for the determination of the conditions needed for increasing the single mode yield of gain-coupled DFB lasers.
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References
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Chen, J., Champagne, A., Maciejko, R., Makino, T. (1997). Threshold Condition of Single-Mode Gain-Coupled DFB Lasers. In: Lampropoulos, G.A., Lessard, R.A. (eds) Applications of Photonic Technology 2. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9250-8_13
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DOI: https://doi.org/10.1007/978-1-4757-9250-8_13
Publisher Name: Springer, Boston, MA
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