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Measuring the intrinsic frequency response of a DFB laser diode using an all-fibre-connected optical modulation technique

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4 Author(s)
Lin, D.C. ; Telecommun. Labs., Minist. of Transp. & Commun., Taoyuan, Taiwan ; Liao, H.H. ; Liaw, J.W. ; Tu, Y.K.

The modulated optical pump signal was boosted by an Er3+-doped fibre amplifier and was efficiently injected into the cavity of the probed laser diode by means of a fibre polarisation controller incorporated with a 2*2 fibre coupler. By keeping the pump wavelength a few nanometres away from the lasing wavelength of the probed DFB laser, the measured results are just the parasitic-free frequency response of the probed DFB laser.

Published in:

Electronics Letters  (Volume:29 ,  Issue: 13 )