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Ultra-low-threshold, high-bandwidth, very-low-noise operation of 1. 52 /mu/m GaInAsP/InP DFB buried ridge structure laser diodes entirely grown by MOCVD

Journal Article · · IEEE J. Quant. Electron.; (United States)
DOI:https://doi.org/10.1109/3.29267· OSTI ID:5774337

GaInAsP/InP distributed feedback (DFB) buried ridge structure laser diodes (BRS-LD) emitting at 1.52 /mu/m have been fabricated on material grown by two step low-pressure metalorganic chemical vapor deposition (LP-MOCVD), with a second-order corrugation on the GaInAsP guiding layer. The minimum CW threshold current of 5 mA is the lowest yet reported for DFB lasers at 1.5 /mu/m. Single longitudinal mode operation with a side mode suppression ratio of 40 dB from 20 to 100/sup 0/C with a temperature evolution of 0.64 A//sup 0/C has been obtained. At only 20 mA above threshold, a bandwidth of 9.6 GHz and a relative intensity noise (RIN) lower than -150 dB/Hz at 4 GHz have been measured.

Research Organization:
Thomson-CSF, Domaine de Corbeville, 91 - Orsay (France)
OSTI ID:
5774337
Journal Information:
IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 25:6; ISSN IEJQA
Country of Publication:
United States
Language:
English