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All-active InGaAsP-InP optical tapered-amplifier 1 x N power splitters

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8 Author(s)
Choi, S.S. ; Lincoln Lab., MIT, Lexington, MA, USA ; Donnelly, J.P. ; Groves, S.H. ; Reeder, R.E.
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All-active tapered-amplifier power splitters (TAPS) consisting of a single-mode input waveguide, which acts as a preamplifier, a two-dimensional (2-D) diffraction section, which amplifies the signal during the splitting process, and N single-mode output waveguides, which act as post-amplifiers, were fabricated in 1.3-μm InGaAsP quantum-well material. Gains in each output guide (power out of guide/input power) of greater than 10 dB with a uniformity of better than 0.5 dB from guide to guide were measured on a 1×8 TAPS device.

Published in:

Photonics Technology Letters, IEEE  (Volume:12 ,  Issue: 8 )