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Method for setting the absolute frequency of a tunable, 1.5 mu m two-section DBR laser

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2 Author(s)
Giles, C.R. ; AT&T Bell Lab., Holmdel, NJ, USA ; Koch, T.L.

A technique for setting the absolute frequency of a 1.5- mu m two-section distributed Bragg reflector (DBR) laser using an Er:YAG optical filter as a frequency discriminator is described. The absolute frequency of the laser was controlled with an accuracy better than 300 MHz over a tuning range of several hundred gigahertz. The frequency drift with laser temperature was -130 MHz/ degrees C, and the tuning rate with current in the active region was 40 MHz/mA.<>

Published in:

Photonics Technology Letters, IEEE  (Volume:2 ,  Issue: 1 )