Linewidth rebroadening in DFB lasers due to weak side modes

Journal Article · Fri Feb 01 04:00:00 EST 1991 · IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (United States)

DOI:https://doi.org/10.1109/68.76858· OSTI ID:5047902

Pan, X; Tromborg, B; Olesen, H ^[1]

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1. TFL Telecommunications Research Lab., DK-2970 Hoersholm (DK)

A new mechanism for linewidth rebroadening is proposed. In DFB lasers, mode partitioning between the main mode and a weak side mode in conjunction with the difference in longitudinal distributions can lead to strong rebroadening even for mode suppression ratios larger than 30 dB. An analytic expression for the new linewidth contribution is derived.

• OSTI ID: 5047902
• Journal Information: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (United States), Journal Name: IEEE Photonics Technology Letters (Institute of Electrical and Electronics Engineers); (United States) Vol. 3:2; ISSN IPTLE; ISSN 1041-1135
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
426002* -- Engineering-- Lasers & Masers-- (1990-)
DATA
EQUATIONS
INFORMATION
LASERS
LINE WIDTHS
NONLINEAR PROBLEMS
NUMERICAL DATA
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SOLID STATE LASERS