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Lasing mode behavior of a single-mode MQW laser injected with TM polarized light

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2 Author(s)
Yasaka, H. ; NTT Opto-electron. Labs., Kanagawa, Japan ; Naganuma, M.

The lasing mode behavior of a multiple quantum well (MQW) distributed feedback (DFB) laser was measured when intensity-modulated orthogonally polarized transverse magnetic (TM) mode light was injected. The 3-dB bandwidth of the frequency response shows a trend different from that observed with conventional bias current modulation: at high bias currents, it decreases with increasing bias current. The maximum bandwidth of 3 dB was observed when the normalized bias current was 4, and it reached 16 GHz at this bias current. The gain saturation coefficients for the transverse electric (TE) and TM modes estimated from these results were ∈pE; 2.5×10-17 cm3 and ∈qE 5.7×10-18 cm3 for the TE mode, and ∈pM: 6.0×10-17 cm3 and ∈qM: 2.0×10-14 cm3 for the TM mode

Published in:

Quantum Electronics, IEEE Journal of  (Volume:29 ,  Issue: 2 )

Date of Publication:

Feb 1993

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