130GHz Frequency Sweep over a 30nm Tuning Range without Mode Hopping by an External-Cavity Semiconductor Laser

Yasutaka ICHIHASHI  Yoshio NAGAKI  Takeshi TSUKAMOTO  Youichi TAMURA  

IEICE TRANSACTIONS on Communications   Vol.E75-B   No.6   pp.521-523
Publication Date: 1992/06/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Optical Communication
optical sweeper,  semiconductor laser,  external cavity laser,  

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A method for sweeping frequency ranges of over 130GHz within a tuning range of 30nm, without mode hopping, has been realized. The optical frequency is swept with a fine translation-rotation grating drive which uses a new, simplified operation method and a thermally controlled semiconductor laser system.