The dependence of feedback bandwidth on the spectral linewidth in external cavity semiconductor lasers for coherent lightwave communication systems
Document Type
Conference Proceeding
Date of Original Version
1-1-1987
Abstract
We show quantitatively for the first time that the feedback bandwidth is a critical parameter controlling the linewidth in external cavity semiconductor lasers. The external cavity structures can be divided into four categories according to their feedback bandwidth Avf and feedback ratio R. The limit of linewidth narrowing depends on feedback bandwidth rather than the length of external cavity. For very narrow linewidth 10 kHz), the feedback bandwidth required is 100 kHz, provided optimum choice of the other three critical parameters R, R, 1 is made as defined below. © 1987 SPIE.
Publication Title, e.g., Journal
Proceedings of SPIE - The International Society for Optical Engineering
Volume
841
Citation/Publisher Attribution
Oh, Il Whan, and Harish R. Sunak. "The dependence of feedback bandwidth on the spectral linewidth in external cavity semiconductor lasers for coherent lightwave communication systems." Proceedings of SPIE - The International Society for Optical Engineering 841, (1987): 328-333. doi: 10.1117/12.967605.