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Polarization-insensitive InP-based MQW digital optical switch

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4 Author(s)
A. Sneh ; Lucent Technol., AT&T Bell Labs., Holmdel, NJ, USA ; J. E. Zucker ; B. I. Miller ; L. W. Stulz

A polarization-insensitive InP-based p-i-n multiple-quantum-well switch is demonstrated for the first time. Polarization-insensitive switching and loss are achieved. Crosstalk and loss measurements across a wavelength range of 20 nm centered at 1.55 μm are reported. A crosstalk of better than -13 dB is achieved for both TE and TM polarizations across the 1.54-1.56-μm wavelength range with a switching voltage of -7 V. A low on-chip loss of less than 3 dB is achieved for both TE and TM across the above wavelength range, with a compact switch structure which is 3 mm long.

Published in:

IEEE Photonics Technology Letters  (Volume:9 ,  Issue: 12 )