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A 1.3-μm wavelength laser with an integrated output power monitor using a directional coupler optical power tap

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7 Author(s)
Koren, U. ; AT&T Bell Labs., Holmdel, NJ, USA ; Miller, B.I. ; Young, M.G. ; Chien, M.
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A 1.3-μm Fabry-Perot laser with a directional coupler power tap inside the laser cavity, used for diverting optical power to an integrated waveguide monitoring photodetector is demonstrated. The monitoring detector provides photocurrent which is linear with the front facet output power, with responsivity as high as 0.37 mA/mW, depending on the length of the directional coupler coupling region.

Published in:

Photonics Technology Letters, IEEE  (Volume:8 ,  Issue: 3 )