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Free Evaluation

April 18, 2016 at 10:23 pm #38259

Rajguru M. Mohan

Participant

Hi,
Now i am adding the benefits of 2nd type of tunable laser i.e. distributed feedback (DFB) laser array.
The DFB laser array is based on the DFB laser, which has been widely used in commercial optical networks for a long time.
The tuning range is expanded by integrating DFB lasers of different wavelengths.
An excellent feature of this laser is its mode stability and
reliability owing to its mode-hop-free tuning characteristics.
Moreover, it is suited to mass production because it is a monolithic chip.
Its drawback is its slow wavelength tuning, which is achieved through temperature control.
DFB array lasers are widely used in current 10-Gbit/s systems.
The linewidth of the conventional DFB laser is several megahertz.
However, a narrower linewidth can be obtained by optimizing the cavity structure.

Thanks

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