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Analysis of the spectral linewidth of distributed feedback laser diodes

Journal Article · · J. Lightwave Technol.; (United States)

The spectral linewidth of distributed feedback (DFB) laser diodes is theoretically studied. Numerical calculation shows that DFB lasers with long cavity lengths and large coupling coefficients have very narrow spectral linewidth less than 1 MHz. The effects of the phase shift and mirror facets on the spectral characteristics of DFB lasers are also analyzed. It is shown that the phase-shifter further narrows the spectral linewidth of DFB lasers. Its numerical result and physical meaning are also shown. 24 references

Research Organization:
Mitsubishi Electric Corp., Amagasaki, Japan
OSTI ID:
5657201
Journal Information:
J. Lightwave Technol.; (United States), Journal Name: J. Lightwave Technol.; (United States) Vol. LT-3; ISSN JLTED
Country of Publication:
United States
Language:
English

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