Feature
Integrated DFB Laser-electro-absorption Modulator Using Selective-area MOVPE
High-modulation-speed, spectrum-stabilized transmitters operating at 1.55 μm wavelength range are key components in the rapidly developing high-capacity long distance optical fiber communication systems. The latter spectral requirement is closely related to the time-broadening an optical pulse suffers as it propagates through dispersive fibers, and this pulse broadening seriously limits the bit-rate and the maximum transmission distance. External optical modulators have been studied intensively to overcome this problem, to avoid the large wavelength fluctuation (called chirp) that occurs with conventional directly modulated laser diodes.
Log in or become a member to view the full text of this article.
This article may be available for purchase via the search at Optica Publishing Group.
Optica Members get the full text of Optics & Photonics News, plus a variety of other member benefits.